Showing posts with label k10d. Show all posts
Showing posts with label k10d. Show all posts

Pentax K10D 10.2MP Digital SLR Camera with Shake Reduction and 18-55mm f/3.5-5.6 Lens Review

Pentax K10D 10.2MP Digital SLR Camera with Shake Reduction and 18-55mm f/3.5-5.6 Lens
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It's a great time to be buying a 10 megapixel SLR, as all the top manufacturer's have new, 5-star models. So let's examine: What do we want most? Great photos, a well made camera, and features that will let us achieve our photographic goals. The K10D delivers.
All the top contenders will deliver excellent results that can be made into poster size prints with great color and detail. Although we can point so some shortcomings (like the poor performance of the Sony Alpha 100 at ISO 1600), image quality is something that is still in the eye of the beholder.
However, features are features, and the K10D has loads. The first thing you'll notice is the solid feel in your hands. It feels robust, and the shutter has been tested to 100,000 shots (same as Canon's bigger brother 30D). But to this, we add something else not found in any other camera in the class: weather-proofing. The body contains 72 seals to help keep dust, dirt and moisture on the outside (the optional grip has 38 seals).
When you put on the optional grip, it really does feel like a part of the camera, not a wiggly thing that might come off.
To get those great photos, the K10D has all the standard feature set, plus a few new ones (like "sensitivity" mode), which will come in hand for some people, but of more partical use to many will be the ability to define what "Auto ISO" range the camera can use. Want the camera to be able to use 1600? Done. Pentax's metering systems have always been well thought of, but you'll get center-weighted and spot metering as options, too. Their "digital preview" can be very handy in setting up the proper white balance.
The viewfinder is the largest in it's class (although the D80 is the smallest fraction behind). When viewing through it, you'll see the 11-point autofocus. What you don't see is that the nine central segments are "cross basis" points, meaning they focus on both vertical and horizontal lines. The other competitors simply have one, the center segment, that is cross-basis. This may not help it focus faster, but it should improve accuracy. Additionally, the focusing mode is easy to change. A switch up front allows you to select manual, single or continuous autofocusing, while a dial on back allows you to change from spot focus (only the center zone), wide (allows the camera to select) or free-floating (you select any of the eleven zones, and can change it quickly with the key-pad on the back of the camera).
The choice of the SD/SDHC cards is great. This small cards avoid the dreaded "bent pin" issue of the compact flash cards, and the SD are compatible with a hugh number of compact cameras as well. Another nice touch is the optional remote control. It can trigger the camera from the front AND from BEHIND the camera, and can store inside the optional grip. I also love the fact they included the .dng standard for RAW images, as this is an open standard developed by Adobe.
And there is one feature that Pentax now leads: Shake Reduction (or VR, or IS, or SteadyShot). First, like the Sony, the SR is built into the camera. So for a modest cost up front, ALL your lenses get some stabalization...even older manual focus lenses! And as a side benefit, you get a slight benefit in keeping the sensor clean. But what most people don't understand about Pentax SR system is that it is a THREE AXIS anti-shake system, something that no other maker offers. In-lens, or the Sony rail system, compensate for you shaking left/right & up/done. By combine these two, it compensates for diagonally, too. What they do not compentate is for "rotational" shake. Imagine a line running through the camera lens to the subject, rotating the camera around this axis. The Pentax SR system uses magnets and bearings to allow the sensor to free float compared to the body. Tremendous technology.
Pentax has been a bit light on their lens selection, but keep in mind that this uses every Pentax 35mm lens ever made, and 3 exciting new lenses that they recently announced (16-50 f2.8; 50-135 f2.8; and 60-250 f4.0, all weather sealed with ultrasonic motors) make them very competitive. For a first lens, the 18-55 is hard to beat. It's well made, featuring a metal lens mount, and the internal focusing allows for easier use of filters and a more efficient, included, lens hood.
Buy the Canon XTi, Nikon D80 or Sony Alpha 100, and you'll get a terrific camera. But for my money (yes, I did buy one), the Pentax K10D is the best.

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Pentax K10D 10.2MP Digital SLR Camera with Shake Reduction and 18-55mm f/3.5-5.6 Lens

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Promaster 7500EDF Digital Flash - Pentax Review

Promaster 7500EDF Digital Flash - Pentax
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Have had for about 6 months now. I use this and the pentax 360 flash. They both have features the other does not. Haven't used wirelessly yet but for the price I paid it has worked wonderfully for me the times I have used it.

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The PROMASTER 7500EDF Digital is a fully dedicated TTL flash designed to work seamlessly with today's high tech digital SLRs as well as traditional SLRs. It includes many advanced features including motorized zoom, multiple and modeling modes, and remote slave function. Along with all of these great features, you get full TTL integration with your digital SLR. The flash has a low profile design, a metal flash foot and features the added benefit of being able to update the firmware which insures that you will get many years of reliable flash photography. One of the handicaps of a camera (film or digital type) is the need to have good light to make a great picture. Many of today's cameras can take pictures indoors without flash or offer a built in electronic flash. However, adding more light in just the right amount can make the difference between a good picture and a remarkable picture. When you see pictures taken by today's contemporary photojournalists, the definition and tonality of the picture can be awesome. Accurate color, sharp detail and balanced illumination are important parts of great photography. And while some people still think film cameras make better pictures than digital, many who are shooting digital know that their pictures easily rival those shot on film. The biggest limitation to a digital camera is the sensitivity of the image sensor. Even though you can adjust the film speed setting on your digital camera, you really are only adjusting the software. Setting the ISO does not really change the ability of the camera's sensor to absorb light. It is more like tuning the color and contrast control on a television. The one tool that will dramatically improve your photographs is the PROMASTER 7500EDF Digital flash.

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Pentax K100D Super 6.1MP Digital SLR Camera Shake Reduction and 18-55mm f/3.5-5.6 Lens Review

Pentax K100D Super 6.1MP Digital SLR Camera Shake Reduction and 18-55mm f/3.5-5.6 Lens
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First off I'm an amateur photographer and just started getting back into photography. I started with a digital camera with manual controls, other lenes, etc... and then moved off to a simple point and shoot camera. This is the first SLR type camera that I have owned and the difference is huge between quality of photos and being able to take certain shots ( Arguable, but manual controls and different lenses on SLR do help )
Physical:
The body feels very solid and has a good weight. It doesn't feel like a plastic toy and feels like a very sold build quality. Even the flaps for batteries and SD Memory Card are very well made.
Button placement at first feels odd but once you've learned the menu system and how to use them it works well.
The kit lenses works very well in most situations. The only time you may want to use a different lens is in indoors with poor/dim lighting. It also feels as solid as the camera body and the manual focus/zoom wheels all turn smoothly and stay put when set.
Using the Camera:
At first like most things there is a learning curve but you can be up and taking photos as soon as the batteries are in and putting it on AUTO PICT mode. Before I purchased the camera I had read complaints on how the menu's wording of items was a bit strange, but honestly they are not hard to figure out and it is spelled out in the manual as to what they are. In fact it's easer just to go ahead and click it and see what it does. There are few of these in the menu but everything else is very clear.
Taking photos is easy and similar to any other digital camera. Depending on the mode you are in you can adjust Exposure/Shutter Speed/Aper/ISO/etc...
Another large complaint against the camera is the burst mode only allows you to take no more than 5 JPEGS ( Highest Quality ) or 3 RAW images before slowing down significantly. This is true, however, depending on your needs this may not matter. If you need to be able to take more than 5 shots at a time then you may want to look at another camera. I took a risk and found that it more than meets my needs.l I was able to take multiple shots of pets/bees/etc just fine with 5 high quality photos or 3 RAW images without any problems.
The viewfinder contains information that is listed on the top LCD and can also be viewed on the LCD on the back of the camera. All very easy to read and see once you understand where each item is placed.

Quality of Photos
Excellent. That's it. One exception though is in the AUTO PICT mode. It works well but I found that you get better photos in either the P ( Program Mode ) or by going to SCENE mode and picking out a scene type like pets, sunset, etc...
Other issues
Everything about the camera has far exceeded my expectations and all my photos have very crisp, sharp detail and color. To help shoot indoors I purchased the Pentax 50mm f1.4 lenses which is around $200 at the time of this writing. Excellent lens which makes indoor/low light photography/fast action shots a breeze. It will allow you to take more light in which will allow you to shoot at a faster shutter speed ( The faster the shutter speed -> less light into camera -> darker photo ). I highly recommend purchasing this lens if you plan on doing portraits or indoor photos with low lighting. Summary:
Pros:
Excellent photos, build quality, easy to use controls, can be used by beginner to advanced. Remember, no matter how great the camera, the person still should know some photography basics like how to set exposure, this will help anyone get great shots from any camera.
Cons:
Burst mode only allows 5 Jpegs or 3 RAW, but may depend on person if this matters.

Click Here to see more reviews about: Pentax K100D Super 6.1MP Digital SLR Camera Shake Reduction and 18-55mm f/3.5-5.6 Lens

User-friendly DSLR - full-featured, yet affordable! Now PENTAX brings the advanced innovation of higher-end digital SLRs to the affordable K100D Super. Building on PENTAX developed Shake Reduction, PENTAX adds an original Dust Removal system to help keep the CCD surface dust-free and full compatibility with SDM lenses. With the arrival of the K100D Super, PENTAX raises the bar and delivers a full-featured and technologically advanced SLR at a very reasonable price.Auto Sensitivity equivalent to ISO 200 to 3200Auto Picture Mode and Scene Modes 2.5 inch LCD monitor viewable from a wide angle16-segment multi-pattern meteringUltra-compact stainless-steel chassis and fiber reinforced polycarbonate housing Penta-mirror viewfinder with 0.85X magnification and 96 percent field of viewTop shutter speed of 1/4000, 1/180 second flash sync. and bulb setting 2.8 frames/sec capture rate Built-in Flash - Type - Retractable P-TTL auto-popup flash; Guide number - 15.6 (200/m); Coverage - 28mm (35mm equiv); Flash modes - Auto, Manual, Auto w/ Redeye, Manual w/ Redeye; Flash exposure compensation - +/- 2 EV (in 1/2 steps) / External Flash - Type - P-TTL (high speed sync, wireless P-TTL available w/ Pentax dedicated flash units); Synchronization speed - 1/180sStorage Media - Internal memory - n/a; Removable memory - SD or SDHCCapture Modes - Mode selection - Auto Picture Mode, Picture Mode (Portrait, Landscape, Macro, Action, Night Scene Portrait, Flash Off), Scene Mode (Night Scene, Surf & Snow, Text, Sunset, Kids, Pet, Candlelight, Museum), Program AEInterfaces - Ports - USB 2.0 hi-speed, video out, DC input, cable switch; Video out - NTSC, PAL; Printer interfaces - PictBridgePower Supply - Power source - CR-V3 (2x), AA (4x lithium, alkaline, NiMH rechargeable); Recordable images - Approx 730 (630 with 50% flash use); Playback time - Approx 700 minutes; AC adapter available - YES,

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Tamron Autofocus 28-200mm f/3.8-5.6 XR Aspherical (IF) Lens for Pentax SLR Cameras (Silver) Review

Tamron Autofocus 28-200mm f/3.8-5.6 XR Aspherical (IF) Lens for Pentax SLR Cameras (Silver)
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I purchased this lens for traveling with my Pentax digital bodies. It's a great alternative to carrying a bunch of lenses when traveling. The trade off for the versatility is the mecahanics at times. Instead of being a master on one focal range, it's the jack of all trades. It has a very difficult time focusing quickly, especially with a filter on the lens. AF is slow on this lens.

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Tamron offers this world's smallest, most lightweight 28-200mm high magnification zoom lens. With a minimum focal distance over the entire zoom area of 49cm, and a maximum magnification of 1: 4 (at 200mm) this remarkable lens achieves high magnification zoom performance with the compact size of a standard zoom lens. Through XR (Extra Refractive Index) glass and efficient use of aspherical lenses, Tamron has achieved a 25% reduction in size and a 27% reduction in weight over the previous model (Model 371D), along with a decrease in filter diameter by two-steps ?72mm - ?62mm) without compromising the superior image quality characteristic of Tamron 28-200 lenses.

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Pentax AF 360 FGZ Flash for Pentax and Samsung Digital SLR Cameras (w/ case) Review

Pentax AF 360 FGZ Flash for Pentax and Samsung Digital SLR Cameras (w/ case)
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This Pentax flash offers all stuff you'd expect from a basic AF flash (power zoom, bounce, AF illuminator), plus a bit more.
Like most of the camera companies, Pentax offers a basic and more advanced (or powerful) flash. As basic flashes go, this one only lacks "swivel" (side-to-side adjustment) from ranking 5-stars. In terms of exposure accuracy, this flash ranks equal to the best.
Useful features included that aren't typically found in cheaper flashes are:
1) Built-in wide angle diffuser. Need a bit more width in the coverage? A pull out panel is located in the top of the flash;
2) Built-in "catch light". This small, white card is in the same space as the diffuser. If using bounce, this will help elimate shadows caused by the bounce, and puts a little gleam in the eye;
3) High-Flash synch. Most useful for outdoor portrait photography, this allows you to set the shutter speed to faster than normal, allowing you to control the depth-of-field;
4) "Spot Beam" function. In low light situations, the AF illuminator in the flash fires to help the AF system of the camera. The SB features allows the illuminator to work even when the flash is not used for exposure (such as in a museum);
5) Command functions. Unlike the Nikon SB-600 or Canon 430EX, this flash can be used to control and trigger multi-flash operations.
A very good basic flash, only a swivel away from 5-star perfection!

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D1) PENTAX AF-360 FGZ FLASH 30333

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Pentax K200D 10.2MP Digital SLR Camera with Shake Reduction 18-55mm f/3.5-5.6 Lens Review

Pentax K200D 10.2MP Digital SLR Camera with Shake Reduction 18-55mm f/3.5-5.6 Lens
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I am an amateur photographer who's always used point-and-shoot cameras. Finally, I got up the nerve (and cash) to get myself a DSLR.
I started doing lots of reading and reviewing the various reviews/features of different cameras, eventually settling on the Pentax K200D.
I have never owned anything made by Pentax/Canon/Nikon/Olympus/Sony before, so I didn't have any sort of brand loyalty ties. I took long, hard looks at the features and performance and went from there.
There are several reasons why I chose the Pentax K200D over similar models from other manufacturers:
1) Weather sealing -- Pentax claims their camera is the only environmentally sealed camera in its class ("starting DSLR"). Nice to know it's there, even if I don't plan on intentionally testing it out!
2) Saving High quality JPEG and RAW at the same time (RAW+). Some of the other models I was considering didn't allow RAW + High JPEG, only medium JPEG.
3) Very high build quality. This thing feels like it's built like a tank. After reading literally hundreds of user reviews from Canon owners, Nikon, etc. the general consensus was their bodies (and cheap lenses) felt a little flimsy. I must admit, I went to the stores and tried out their cameras (the entry DSLR) and I felt the same way.
Popular Photography's preview of the K200D said it best: "Mate a tank with a SLR body..." or something to that effect.
4) AA batteries. I know some people consider this a downside, but decent 2500mha AAs are extremely cheap and work great. If I ever run out of juice, I know I can hit up practically any store for a recharge.
5) You can mount any lens Pentax has ever made on this camera. Of course, you may not get all the features, but the consistency of the lens mounting was a plus for me.
6) In-body stabilization - A real biggy for me, as this translates to any lens you buy for the system! It has already saved several of my shots.
7) It's an APS-C sensor -- this discounted the Olympus line immediately.
----------------------------------
So how do I like the camera? So far it's great!
I've only owned it a few days, but I've been doing lots of testing with the kit lens (which, according to "the net", isn't as horrible in quality as some other kit lenses).
Autofocus is fairly quick, though low light seems to be throwing it off sometimes (duh!)
Light metering seems to be very consistent -- I'm not getting surprise too dark or too light shots unless I intentionally screw the shot up (like forgetting to reset EV , doh).
Burst rate is a bit low at 4 JPEG or RAWs - but I don't plan on doing too many sports shots so hopefully this won't be a limiting factor. I'm awaiting some Sandisk Ultra II SD cards to come in before I see how much this low rate limits me -- hopefully the fast card will allow a quick buffer flush.
The grip is confortable for me, a 6-foot tall male with large/medium hands. So far I haven't accidentally hit a button while operating the camera, etc. I haven't done prolonged shooting yet.
The menu options are pretty self-explanatory, and I like the manual they give you (though it's huge) -- They do a pretty good job explaining what various functions do, etc.
-------------------------------------------So, the verdict? If you're moving from a point and shoot digital camera (I had a Kodak Easyshare Z612 6MP), this thing is going to blow it away!
Overall, I am very happy with my purchase. The kit lens isn't total garbage, the menu functions are easy to access and the camera performs admirably.
The only thing I miss moving from my PNS camera is the zoom.
My next purchase will probably be the fast 50mm prime lens for portraits.I've been shooting in low-light situations (my house tonight) and so far it's doing great.
I've also taken it outdoors on a sunny day for some pretty good looking shots. I can't wait to upgrade to a good zoom to catch more wildlife.[...]

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D1) PENTAX K200D W/18-55 LENS

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Pentax DA 55-300mm f/4-5.8 ED Lens for Pentax and Samsung Digital SLR Cameras Review

Pentax DA 55-300mm f/4-5.8 ED Lens for Pentax and Samsung Digital SLR Cameras
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I got this in the hopes of replacing both a Pentax 50-200 and a Sigma 70-300. Luckily, the image quality seems to be an improvement over both, though they were acceptable on their own. This lens is just a bit smaller than the Sigma, though not close to the small size of the 50-200.
The Pentax 55-300 does not have a quasi "macro" mode as do some other xx-300's including the Sigma, and the closest focusing distance is 4.67ft (1.4m) which is not particularly close, either.
As seems standard with Pentax, the lens hood has a hatch to allow turning a polarizer filter, and the "Quick Focus" ring allows manual focus to fine-tune the auto-focus when the shutter is still half-pressed.
Not particularly a fast focuser, it can hunt in low-contrast situations and when going from very close to very far, or occasionally lock up. The variable f4-5.8 speed is not great for low light but is is OK in most daylight circumstances and helps to keep the cost and size down.
Comes with front and rear caps, a black nylon pouch with no strap or loop, and a manual.

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The versatile Pentax DA 55-300mm zoom lens offers a focal length equivalent of 82.5 to 450mm in the 35mm format, making it ideal for moderate to long sports and wildlife shots. The lens is outfitted with multiple ED glass elements, which are designed to minimize chromatic aberration and makes images look crisper and sharper than ever before. The Pentax Super Protective coating, meanwhile, protects the exposed lens elements against dirt and contamination. Other features include a focusing ring that permits easy manual focusing, a 4.6-foot close focusing distance, and a 58mm filter diameter. Specially adapted for high-quality Pentax and Samsung digital SLR cameras, the lens carries a one-year warranty.
Specifications
Focal length: 55-300mm
Maximum aperture: f/4 to 5.8
Minimum aperture: f/22 to 32
Lens construction: 12 elements in 8 groups
Angle of view: 29 to 5.4 degrees (when used with Pentax digital SLR camera body)
Number of diaphragm blades: 6
Minimum focusing distance: 4.6 feet
Maximum magnification: 0.28x
Filter diameter: 58mm
Diaphragm control: Fully automatic
Hood: PH-RBG 58mm
Objective cap: O-LC58
Case: S80-160
Corresponding AF mounts: Pentax and Samsung
Dimensions: 2.8 inches in diameter and 4.4 inches long
Weight: 15.5 ounces
Warranty: 1 year


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Tamron AF 70-300mm f/4.0-5.6 Di LD Macro Zoom Lens for Pentax Digital SLR Cameras Review

Tamron AF 70-300mm f/4.0-5.6 Di LD Macro Zoom Lens for Pentax Digital SLR Cameras
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I own both Canon gear (Canon 40D) and Nikon gear (D40). Since Nikon is my cheaper lighter gear, I am not to invest a lot of $$$ into it. While D40 is light and cheap, it is an excellent camera which I use all the time for many reasons. I needed a tele lens to compliment my kit 18-55 lens (which is excellent in itself and gets great reviews). I was between Tamron 70-300 and Sigma 70-300 APO since Nikon's 70-300 is 4 times more expensive than Tamron and Sigma. After reading tons of reviews and playing with both Tamron and Sigma, I chose Tamron and I am very happy I did. There are several versions of Tamron's 70-300, however this one is the latest, 2008 version, which autofocuses on D40, 40X and 60. This lens is remarkable for the amount it is sold for. I've taken many great photos with it on vacation and around town. It is also very compact and light. While it is not an ideal lens to shoot Birds in Flight (neither is D40 with its 2.5 fps) due to its slow autofocusing mechanism, it is great for general photos and portraits. As you can see from samples I even took some bee shots with it. I took a star because of slow autofocusing, but hey, you are paying $130 for it, realize it. I recommend this lens over Sigma for budget shooters who want 300 tele, but don't want to pay $450 Nikon wants for its version. I am happy with it

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The Tamron 70-300mm f/4-5.6 Di LD Macro Autofocus Lens is a compact, light-weight, ultra-tele zoom which covers the 70mm to 300mm telephoto range and produces photographs of exceptional image quality. It is ideal for taking pictures at a distance particularly when the subject is difficult to approach such as in nature and wildlife photography as well as at sporting and theatrical events. The Tamron 70-300mm also excels at portraiture and allows you to isolate the subject from the background for eye-catching, dramatic portraits. This versatile zoom has superb macro capability with a magnification of 1:2 enabling 1/2 life-size close-up shots of flowers, insects, and other objects that normally would require the use of a specially designed macro lens. This new lens is made with the Tamron Di (Digitally Integrated) design which uses an optical system with improved multi-coatings designed to function with Digital SLR Cameras as well as Film SLR Cameras. Tamron also incorporates LD (Low Dispersion) glass in this lens to correct chromatic aberration, resulting in clear, sharp, and beautifully vivid images.

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Sigma 28-300mm f/3.5-6.3 DG IF Macro Aspherical Lens for Pentax and Samsung SLR Cameras Review

Sigma 28-300mm f/3.5-6.3 DG IF Macro Aspherical Lens for Pentax and Samsung SLR Cameras
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It is what you would expect for a lens in this price range. It is a perfect everyday lens especially well suited to photograph outdoor events where there is close and far action. It is made of light plastic which makes it easy to carry but I would not want to drop it - especially when extended to 300mm. Overall I am very satisfied with my purchase.
The focus speed is slower than my D50's kit lens and it is also noisyer, but not annoying. The only odd fuction is the manual focus; the internal gears do not disengage so you feel the gears whirring as you turn the focus ring, it feels a bit rough. The Nikon model of this lens does not have a manual focus switch on the lens, you have to use the camera body switch.
A bonus with this lens is that is does good macro photography. I was able to get sharp shots of flowers at close range with totally blurred backgrouds.
The lens needs a lot of light but 300mm is not very practical indoors so it is perfect for outdoor daytime photos. With the hotshoe flash the lens performs very well indoors.
The zooming action is a bit quick for my liking. Just a half turn of the barrel and you go from 28 to 300! You need a gentle touch to get just the right focal length.
I bought this lens instead of the Nikon 70-300 G. The 28-300 is a more useful range but you sacrifice speed (6.3 instead of 5.4 max aperture at 300mm). The Sigma is lighter and at least half an inch shorter than the Nikon at the smallest focal length. The Nikon had smoother zooming and faster focus.

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28-200mm f/3.5-5.6 DG Compact Aspherical Macro Autofocus Lens for Pentax AF

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Tamron AF 28-75mm f/2.8 SP XR ZL Di LD Aspherical (IF) Lens for Pentax Digital SLR Cameras Review

Tamron AF 28-75mm f/2.8 SP XR ZL Di LD Aspherical (IF) Lens for Pentax Digital SLR Cameras
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The Tamron 28-75 has become somewhat of a legend due to its phenomenal image performance for the price. Yet, when you take price out of the equation, this lens still holds its own surprisingly well against the top-dogs from Canon and Nikon costing anywhere from two to four times the price of the Tamron. So far, I've found this lens is consistent with what I've been hearing across the Internet: image quality is at a professional level.
The lens looks and feels like most Tamron lenses I've seen, plastic but reasonably well built. The zoom ring is at first a little snug in operation, but I suspect it will loosen a bit over time. The focus ring rotates during automatic focus operation, but that's really a non-issue in my view of things. However, everything still feels generally solid and of quality construction, in contrast to the loose and rattling lens barrels, zoom and focus rings of the Pentax "kit" lenses: the 18-55 and 50-200. Autofocus operation with the 28-75 is a bit on the noisy side, but I've found it to be fast enough so far. What's most important, it's been spot-on in typical shooting situations (a welcome relief to the Pentax DA* 50-135 f2.8 I had to return due to poor autofocus performance and resultant soft images).Some comparison shots between this lens and the Tamron 18-250 taken in the 28 to 75mm range show that the 28-75 is clearly a sharper lens and maintains that sharpness nicely boarder-to-boarder. The 18-250, my basic walkaround lens, is a strong performer in that lower range, but it is simply outclassed by the 28-75. Contrast and color saturation is also superior to the 18-250. Interestingly, color tone with the 28-75 looks to be ever so slightly warmer. I've found that CA (chromatic aberration - purple fringing) is present in some rare shots near the boarders such as with the edges of overhead florescent lighting in a gym where that lighting is overexposed in contrast to the rest of the picture, but I haven't seen it appear in many other situations where one would expect to find purple fringing.At f2.8, I've found that this lens still produces impressive images, especially at the long end, but not quite up to the sharpness at f4.0 and higher. So far, I haven't really noticed any issues with vignetting or distortion.
The 28-75 is also a full-frame lens, meaning that it is designed for cameras with a 35mm film frame-sized sensor, but it will also work on the smaller APS-C sensor of the Pentax D-SLRs (dedicated APS-C lenses such as the Tamron 18-250 will not work properly with a full-frame sensor). The positive of using a full-frame lens with the APS-C sensor is that the smaller sensor benefits from being more in the lens' "sweet-spot, " that is, the potentially softer/distorted boarders seen by a full-frame sensor for a particular lens are just outside the reach of the APS-C sensor. Kind of makes one wonder why all D-SLR lenses aren't full-frame.
Considering the limited lens options for Pentax D-SLR owners, especially higher-end products, this is certainly the lens to have. While the Pentax APS-C factor of 1.5x, and an effective focal length of 42 - 112.5mm is perhaps not quite wide enough for some shots, it does, however, work great for general use including portraits and low-light interior shots without flash. A nice surprise I found with this lens is that it has an aperture ring which means I should be able to use it on my old Pentax ME Super film SLR for a true 28-75mm focal range. As I continue to be impressed with the 28-75, I'm hoping that the new Tamron 70-200 f2.8 due out in a few weeks will be in the same league as this legendary lens bargain.


Click Here to see more reviews about: Tamron AF 28-75mm f/2.8 SP XR ZL Di LD Aspherical (IF) Lens for Pentax Digital SLR Cameras

Di: Digitally Integrated Design, is a designation Tamron puts on lenses featuring optical systems designed to meet the performance characteristics of digital SLR cameras. The most compact and lightest in the history of fast zoom lenses. Thanks to the revolutionary downsizing "XR" technology employed by Tamron in the development of high-power zoom lenses such as the 28-200mm and 28-300mm, the dramatic compactness that makes this lens the world's smallest and lightest is achieved. Its compactness makes it look and feel like an ordinary standard zoom lens, yet the versatility that a fast constant maximum aperture offers will definitely reshape your photographic horizons.

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Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Pentax Digital SLR Cameras Review

Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Pentax Digital SLR Cameras
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Before purchasing my Pentax K100D, I had for years used all three models in the Canon Powershot S-series of "superzoom" fixed-lens cameras (S1, S2 and S3). I like my Pentax digital SLR a lot, but after I purchased it (and sold my Canon) I really missed the Canon's versatility. I have recovered most of that versatility with this Tamron 18-200 DiII lens, which is good at the wide angle end, good in the middle and pretty good at telephoto as well (I like to shoot birds) and which even provides some macro capability. This is now my default all-purpose lens. It's not the best choice for low-light shooting, but if the light's decent or you can use a flash, this is a good lens, takes good photos, and is a very good value. To do noticeably better than this, you will have to pay a lot more and probably give up the versatility, too.
I give the lens a rating of 4 stars rather than 5 simply because, by nature, this is a bit of a compromise lens. If you don't need the versatility - if for example you don't really need focal lengths over 70mm - then you can get a lens with slightly superior image quality for the same price or even less (perhaps much less if you buy used). The Pentax 50-200 may be slightly sharper in the telephoto range. My Sigma 28-70 F2.8 is faster in its range (the Tamron's max aperture is 3.5). And while it's fine for my needs, this lens deserves to be called macro only in a generous sense. But as a total package, it's hard to beat.

Click Here to see more reviews about: Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Pentax Digital SLR Cameras

the AF18-200mm F/3.5-6.3 XR Di-II LD Aspherical (IF) MACRO (Model A14), a new high power zoom lens designed exclusively for digital SLR cameras using APS-C size image sensors.The new AF18-200mm F/3.5-6.3 XR Di-II LD Aspherical (IF) MACRO is a high power zoom lens for exclusive use with digital (APS-C size)SLR cameras that inherits the product concept of the existing AF28-300mm F/3.5-6.3 XR zoom lens. Even two years after its introduction, the current AF28-300mm is still a favorite and highly evaluated by photographers around the world as a representative model of high power zoom lenses.With the market influx of digital SLR cameras in recent years, the use of high power zoom lenses has become increasingly popular since high power zooms provide the convenience of handling many photographic scenes and the capability of shooting ultra telephoto shots without changing lenses. The popularity of this focal length led Tamron to initiate the development of new zoom lenses to further meet the needs of digital SLR photographers.The result is the successful development of a new zoom lens exclusively for use on digital SLR cameras. The wide to ultra tele focal range of this lens will allow digital SLR camera owners to enjoy digital photography with comfort and convenience.* "Di (Digitally Integrated design)-II" is the designation Tamron puts on lenses designed for exclusive use with digital (APS-C size) SLR cameras, featuring optical systems optimiz

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Click here for more information about Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Pentax Digital SLR Cameras