Showing posts with label a55. Show all posts
Showing posts with label a55. Show all posts

Sigma EX - Telephoto zoom lens - 50 mm - 150 mm - f/2.8 APO DC HSM II - Minolta A-type Review

Sigma EX - Telephoto zoom lens - 50 mm - 150 mm - f/2.8 APO DC HSM II - Minolta A-type
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I switched to this since my Nikno 70-200 was really getting heavy for a day of wedding photography. What i like: Very light, good working distance, nice easy zoom, fairly good images. What i dislike, a little soft at F2.8. Much better at F4.5. Not as vibrant colors...slighly cooler. Can easily flare...make sure you use the hood. No VR means you better shoot at fast shutter speeds or have really steady hands. Overall, a keeper for me. I now use this more than my 70-200. :-)

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This F2.8 large aperture telephoto zoom lens is designed exclusively for digital SLR cameras with APS-C size sensors and its compact, lightweight body provides freedom of movement and versatility. The super multi-layer coating reduces flare and ghosting and ensures sharp images throughout the entire zoom range. The addition of the optional 1.4x EX DG APO or 2x EX DG APO Tele Converters produce a 70-210mm F4 AF tele-zoom lens and a 100-300mm F5.6 AF ultra-telephoto zoom lens respectively.

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Sony Alpha SLTA33 DSLR with Translucent Mirror Technology and 3D Sweep Panorama (Camera Body only) (Black) Review

Sony Alpha SLTA33 DSLR with Translucent Mirror Technology and 3D Sweep Panorama (Camera Body only) (Black)
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I bought the a33 after owning an a300 for a couple years and it's a nice upgrade. The build quality is about the same as the a300, which is a little plasticky but mostly solid feeling with good balance. Physically it's smaller/lighter than the a300 but still is easy to handle for those with medium-sized hands (if you have giant sausage fingers you may have issues). The buttons are better arranged and the screen is larger/sharper with better tilting/rotation.
The main reason for my upgrading was for the video recording and I am very satisfied with this. Since the a300 doesn't have video recording I can't compare it to another DSLR, but compared to my point-n-shoot HD camera this is awesome. Being able to control the depth of field on videos is great and the auto focus is very fast, but sometimes hunts a little. You definitely hear the focus motor turning on the video if you're recording a quiet scene but it's not terrible. If you're outside with ambient noises (cars, wind, random noises) you barely hear it. The mic jack is a regular audio jack so you can use any third party mic and this should eliminate the focus noise and would be worth looking into. You can also use manual focus and then there is no noise from zooming/focusing.
Photos are somewhat better than the a300. There is less noise at high ISO settings and AUTO ISO now will go up to 1600, compared to only 400 on the a300; this should help a good bit in low light conditions. It focuses faster and more accurate than the a300 and the a33 will shoot much faster in continuous shooting mode as well. The panoramic setting is great as well and works reliably and quickly, just push the shutter button once and rotate the camera quickly towards the direction indicated on the screen in one smooth motion (like recording a video) and the camera does the rest; there is no aligning ghost images one at a time like I've seen on other panoramic enabled cameras.
Other than noted above the a33 is pretty much the same as the a300 in most respects. I've used it with some Minolta glass and it's worked well so there are no issues I know of in regards to compatibility. It's like the a300 but faster, sharper, easier to use, has video, is lighter and a little smaller. The only real negative I have noticed compared to the a300 is the battery doesn't last as long (but not too bad), so a 2nd battery pack is somewhat mandatory if you'd like to go out and shoot for a full day.
All in all it's a great camera and I'm happy with it. However if you don't really need video or high-speed continuous shooting the older/traditional alpha DSLR cameras would be a good alternative for a little less money.

Click Here to see more reviews about: Sony Alpha SLTA33 DSLR with Translucent Mirror Technology and 3D Sweep Panorama (Camera Body only) (Black)

Capture your perfect moments with the world\'s first Translucent Mirror Technology DSLR enabling simultaneous focusing and capture. Continuous shooting is 7 frames per second, complete with continuous auto focus. Auto focus is also visibly faster in Live View and HD Movie modes.

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Sony Alpha SLTA55V DSLR with Translucent Mirror Technology and 3D Sweep Panorama (Camera Body only) (Black) Review

Sony Alpha SLTA55V DSLR with Translucent Mirror Technology and 3D Sweep Panorama (Camera Body only) (Black)
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I like this camera! For $750 I can't find another camera with these specs. It is well made and is now my do everything, go everywhere, second camera to my big gear.
Pros: Clean high ISO
6 fps with full functionality, 10 fps with limits
FAST autofocus, especially in video mode!
LCD screen swivels into the body for protection, great for hikes
In body stabilization, great for the vast selection of old "Minolta" lenses
Menus are very helpful and easy to navigate
Button layout is very efficient
Small body great for travel
Mirror does not move lessening camera shake during shooting
In camera GPS
$750!
Cons: None that match this price range, this camera beats everything else in my opinion
Yes, this is a small body, semi-limited function camera designed to be a step-up camera or second body to pros. Many of the complaints are pros who are trying to use this little speedgun inside a studio with a full flash set-up. That is not the function of this camera, buy a Canon 5d mkII, Nikon D700, or Sony a900 if that is what you are looking for. For $750 I can't find anything similar in functionality. I bought this camera with a full complement of lenses for under the price of the new Nikon D7000.

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Capture your perfect moments with the world\'s first Translucent Mirror Technology DSLR enabling simultaneous focusing and capture. Continuous shooting is an amazing 10 frames per second, complete with continuous auto focus. Auto focus is also visibly faster in Live View and HD Movie modes.

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Sony Alpha SLTA33L DSLR with Translucent Mirror Technology and 3D Sweep Panorama (Black) Review

Sony Alpha SLTA33L DSLR with Translucent Mirror Technology and 3D Sweep Panorama (Black)
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I've been using the a33 for about a week now, rigorously testing all aspects of the camera as well as pushing the new tech (SLT) to its limits in both video and high-speed shooting. I consider myself a prosumer, currently using Canon 7D. In fact, I've been using canon for the past 10 years. With the recent hype about large sensor video functionality found on almost all new releases, I found myself craving for a more functional AF in DSLRs. Because I'm no pro videographer, manual focusing (follow focusing) is terribly difficult for me, especially for high speed, erratic subjects like my kids running around the backyard. And contrast AF found on most DSLRs is a joke. Then came the SLT technology. A fixed mirror that feeds AF data constantly to dedicated AF sensor full-time, even when shooting video. For the price comparable with other entry-level DSLR's, it sounded like a worthy investment. And being able to shoot 7fps (10fps for a55) with that constant phase-detection AF on a body that sells for 650 - certainly a head-turner if you've been following the DSLR trends the past couple of years.
Well, Sony was able to deliver most of its promises. And I was pleasantly surprised by its PDAF video capability. However, as with all things in life, all that glitters is not gold. There are certainly limitations with this camera, especially noticeable/annoying if you're a prosumer level user. I will not go into details about the specs. Those can be found by just googling "sony a33". And I will not go into in-depth review either. Probably the best source for that is dpreview.com or imaging-resource.com. I will only list the limitations I found using this camera from a user who's been using Canon line (currently the 7D). Don't get me wrong. Overall the camera does deliver in most everything it promises to do (and thus, 4 star rating). All the positives have been pointed out over and over again on various reviews you read online, so I just don't feel the need to repeat them again. I just wanted to point out the major issues that I experienced first-hand. These might be of significance to those who are thinking about getting this camera based on its new technology (like me).
1) First and foremost, battery life is a joke. I guess because the camera is on a live view mode full time, it is inevitable to use up more power than traditional dslr, but sony should've took this into consideration. On paper, a33 is rated to take about 340 images using the LCD (about 270 with EVF), but with a little bit of video and looking through the menus to setup different functions, the battery gets drained VERY VERY QUICKLY. how bad? On a fully charged battery, I've turned on the camera, set the time/date/location info, entered my shooting preference, then took the first shot and about 40 sec video. It was at 83%. Not kidding. After about 2 hours of intense use, it was pretty much depleted. That's how fast the power goes. But YMMV since battery life depends on a lot of different factors. I never really had to think about whether my particular way of shooting would use up more power than necessary because all of the DSLR's I've used to date, I never once had to worry about draining the power quickly. But now its just one more thing I need to keep in mind. Another thing to keep in mind is that this battery takes about 4 to 4.5 hrs to fully recharge, much longer than most others.
2) No dedicated RAW/JPEG conversion. If you're moving up from compact and only use JPEG, this is a non-issue. But if you are half serious about your IQ and PP, then you'll most likely want to use RAW. The reason why a dedicated button to switch RAW/JPEG is so important, IMO, is because all of the fancy new modes - Auto HDR, Panorama, Handheld Twilight mode, high ISO capture - can only be accessed in JPEGs only. Either Sony should include these potentially useful functions in RAW, or at the very least should include a dedicated button to swtich format quickly and efficiently. For me to access sweep panorama, for example, would require me a minimum of 12 button presses. Another thing to keep in mind is that the menu always defaults to the first part of the shooting menu every time. It does not stay at the menu you last used as with Canon cameras. So if the section that you use is hidden inside the middle part of the menu, you are out of luck. Every time you enter into the menu system, you'll have to start from the top (beginning) then move into the section/option you want to change.
- Steadyshot (in-body image stabilization). Coming from Canon where IS is on the lens (and therefore, the effect can be viewed through OVF), I was skeptical of Pentax, Sony, Olympus and other camera makers that place IS function on the imaging sensor itself. Whether one is superior than the other is a whole different topic of discussion. Knowing that a33/a55 is EVF/LCD, I automatically assumed that steadyshot effect can be seen through EVF/LCD with every lens I put on. THIS IS NOT TRUE. For whatever reason, neither EVF or the LCD displays the anti-shake effect. It only tells you that Steadyshot is on through a mere 5-bar indicator on the side of the EVF. Because both EVF/LCD receives data directly from the sensor, I thought WYSWIG - the exposure, dynamic range, color, and steadyshot.
- Lack of manual control during video. If you want to take advantage of the phase detection AF during video, everything else must also be controlled by the camera. There's no way for you to set the speed, ISO, and most importantly, the aperture. That last part is critical since your HD video will look no different than any compact that also takes HD video if you can't control the aperture (depth of field). Why Sony wouldn't allow these manual settings to be controlled by user is beyond me. I doubt these will have significant impact in AF, unless the aperture is so small that no enough light falls on the AF sensor, in which case, Sony should at least give the users an option to pick either (the AF) or (aperture). Anyway, this is a big let down from my point of view.
- Buffer clearing time between shoots. I am honestly puzzled by this one. Sony has provided the public with this awesome, state of the art technology (translucent) implemented into imaging world that could potentially be as significant as when SLR's first turned digital. Yet, the image processing engine is remarkably slow. What's the point of capturing 7 fps images when you have to wait 40 seconds afterwards until the camera becomes fully functional (normal) again? I don't understand why Sony didn't bother to upgrade the processor/imaging algorithms when they proudly put 7 fps constant AF shooting as one of the main headliner. I've heard a55 is even slower with its 10 fps shooting. When shooting RAW at maximum 6 fps (for both a55 and a33), things are even slower and your buffer fills up after about 10 shots or so. And yes, I was using one of the fastest SDHC cards available - the transcend class 10 16gb card. So unless you have a lot of patience and don't mind your camera freezing for 40+ seconds after rigorous action-catching shots, you'll have some serious problem and may potentially miss many opportunities.
- Limited overall customization. I didn't expect this camera to provide the kind of customization that I got from Canon 7D. After all, there is a price difference of about a grand. Nonetheless, many entry DSLR's these days that a33/a55 supposedly should be competing, offers many more practical customization options for users of varying demands. A33/a55 is so limited in customization that you start to wonder whether you're holding a aps-c sensored interchangeable lens camera. The menu and setup options are very very basic (if that). I think Canon powershot G11 provides more customization than a33. For example, under video, one of the most intriguing features that people would buy this camera for, you basically have two formats. Either HD or VGA. No control over frame rate or any other combination. If using AVCHD format, your only option is 1920x1080i. If using MPEG, your options are 1440x1080 or standard VGA (I think 640x480). That's it. Those are your ONLY options. All other areas pretty much lack control and customization similar to video format. Talk about letting your camera to take control of YOUR shooting...
- Lack of options and limited display data. Here's an example - not being able to set ISO in 1/3 increment is one thing. Not DISPLAYING the ISO just because you're in auto ISO mode is just lame. I understand the range is between 100 and 1600, but when in auto ISO, the display just says "AUTO ISO". there's no way what ISO the camera is choosing until after you've taken the shot and reviewing the image (data).
Again, despite these limitations (more like frustrations), the camera does deliver in it's core technology. All the positives cited by online reviews are true. If you are graduating from compacts, this camera, by all means, would make an excellent DSLR alternative. However, those of you who are more experienced DSLR shooters drawn into a33/a55 because of its new technology, my advice is to wait a little longer until Sony comes up with a SLT model that is geared more towards the enthusiast/prosumer market. I heard rumors that early part of 2011 Sony will implement its translucent technology in the alpha 7 series (a77?) that would potentially address many of the concerns I've pointed out. Just wanted to give everyone a head's-up.


Click Here to see more reviews about: Sony Alpha SLTA33L DSLR with Translucent Mirror Technology and 3D Sweep Panorama (Black)

Capture your perfect moments with the world’s first Translucent Mirror Technology DSLR enabling simultaneous focusing and capture. Continuous shooting is 7 frames per second, complete with continuous auto focus. Auto focus is also visibly faster in Live View and HD Movie modes.What's in the Box :SAL - 1855 SAM lens, lens cap(Battery Charger (BC-VW1)Rechargeable battery (NP-FW50)Shoulder strapBody CapUSB cableCD-ROM

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Sony a55 DSLR Camera with 18-55mm zoom lens Review

Sony a55 DSLR Camera with 18-55mm zoom lens
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I've had a Panasonic FZ30 "bridge" camera for five years. It is the type of camera without interchangeable lenses and a small sensor. I've really enjoyed that camera as it had good ergonomics, a great 35mm to 420mm 12x zoom lens, shot video, a good set of features, and pretty good stills. However I found it limited me in three areas (there's always something right?):
1) I wanted better image quality.
2) I wanted better low light capability.
3) I wanted better video performance.
Not wanting to carry and change lenses I searched for another bridge mega-zoom type of camera but they all suffered from the same small sensors and limited low light capability. So I decided I had to make the leap to an interchangeable lens camera. I would search for one that had a sort of mega-zoom lens available so I could just have one lens.
I looked at DSLRs but they are so big, so expensive, and so heavy that I shyed away from them.
Recently several micro four-thirds size sensor cameras came on the market, all using a new set of lenses, but I wasn't impressed with them. I thought if the sensor had been the biggest problem in my FZ30 I didn't want just a step up, I wanted a large leap up in sensor size.
Then I saw Sony introduce the A33 and A55. Reading through the specification I was so excited to see it would likely meet all of my wants and then some.
I've had the A55 for just over a week and I am very happy with it. I have the one lens I wanted (sort of) which is the Sony SAL18250 with a 33mm equivalent of 27mm to 375mm, almost as much zoom as my FZ30. I do appreciate the wider 27mm and can crop on the PC to extend the zoom range. Photo quality with this camera/lens combination is a huge improvement, just what I was looking for.
This camera is small compared to most other DSLRs on the market, but it is competitive in photo quality, ahead in video quality, and has some great features not found on even much more expensive cameras.
The sensor used in the A55 is an ASP-C size used in many prosumer DSLR cameras. Sony has done a great job combining advanced features into a small and light body.
As for low light the FZ30 was limited to 400 ISO while the A55 goes up to a somewhat grainy 12,800 and can mimic 25,000 in one mode. So it far exceeds my needs for low light capability. There is little noise up to about 6,400.
The video quality is astounding at 1080i/60fps (captured at 30fps, recorded at 60fps). It is smooth, sharp, and the color is good even in low light. Check it out on youtube.com
There are lots of detailed professional reviews online so I won't go much deeper - and I'm not the one to do that anyway. I'm just an amateur photographer who wants to take good photos of my seven month old grand son, some videos of wake boarders behind our boat, and photos of family gatherings. This camera will do that and much more.
There are many complaints of low battery life but it is better than my FZ30 so I am happy. I have three batteries which should solve any low battery issues anyway. It depends a lot on your shooting conditions. Yesterday I took 700 photos with very little auto focus required; the battery level showed 75% after those 700 shots. This was just a test and the total duration was less than 15 minutes. I just offer it to say that your shooting conditions will dramatically alter battery life.
Pros:
- Light weight, small and easy to handle.
- Great photo quality
- Even better video quality than most.
- Very fast, continuous Auto Focus even during video.
- Level indicator on screen (I can't tell you how many images I've had to adjust photos on the PC for a crooked horizon)
- Fully articulated 2.9" LCD (I won't buy a camera without one of these)
- Very nice Electronic View Finder. Some see this as a "Con" if they've come from an OVF. I've only used EVF for 10 years so this is no big deal for me.
- Nice, sharp, 18-250 lens (an option I purchased separately.
- Panorama mode - take an auto-stitched sequence of photos in one quick motion. Awesome feature.
- High Dynamic Range - Take, for example, a photo indoors with a bright window in the background. HDR will properly expose both the inside of the room and the image outside the window - automatically in the camera.
- Hand Held Twilight mode - take a photo in very dark conditions. The camera will take 6 photos and combine them to achieve amazing 25,000 ISO equivalent photos.
- Night portrait - uses the flash for the person in the foreground but properly exposes the background too.
- Amazing Night View scene mode - take great city skyline photos at night.
- Built in pop-up flash
- Built in GPS records where you are in the photo data. Display on Google Earth
- Face detection
- Smile shutter
- 10 Frames Per Second - yes 10fps. You can't find that in any other camera in this price range. And it will focus during the burst!
- Sensor switches from LCD to EVF when you put your eye up to the EVF. Neat!
- I can have one lens and just leave it there. No carrying two or three lenses and having the frustration of having the wrong lens attached for a given situation. I did the three lens dance many years ago and don't ever want to do it again. With one lens there is no issue with cleaning the sensor if it gets dust on it because I'll never have the sensor exposed to the air.
Cons:
- With the 18-250 lens the camera and lens weight about 2 lbs. That is about 1/2 lb. heavier than my FZ30 and I notice it.
- Lots of shooting, especially long video with the image stabilizer on, can result in an over heat shutdown. I've only had this happen once. Most of my videos are 1-3 minutes, well inside the overheat warning.
- To me the grip is uncomfortable and too small. I have average size hands for a man. After doing some research though I've learned I've been spoiled by my Panasonic FZ30 which had a very nice grip. I've tried a number of DSLRs and it seems many of them have grips that are not as comfortable for me as the FZ30.
If you are the owner of a larger, more expensive, DSLR you may find some things of this camera to fall a little short for your needs. One big issue is the lack of an OVF, another might be battery life. You may find, though, that the Sony A55 is a good addition to your camera inventory that is much smaller and lighter as a carry-around but still has great image quality and features. For you there are a lot of great Alpha lenses available for this camera.
If you are the owner of anything less than a DSLR I suspect you'll find this to be a gem of a camera. It has a lot of features that you can take your time to learn, but it also has several auto modes so you can treat it as a point-n-shoot. My wife picked it up this morning and took several photos without ever having touched it before. She took the lens cap off, turned it on, popped up the flash and took several great photos of me with my grand son.
Don't be scared away by those that tell you Canon and Nikon are the only good digital camera manufacturers. Sony makes sensors for Nikon.

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Sony Alpha SLTA55VL DSLR with Translucent Mirror Technology (Black)

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