Showing posts with label fast. Show all posts
Showing posts with label fast. Show all posts

Sigma 28-70mm f/2.8-4.0 High Speed Zoom Lens for Canon SLR Cameras Review

Sigma 28-70mm f/2.8-4.0 High Speed Zoom Lens for Canon SLR Cameras
Average Reviews:

(More customer reviews)
I was searching for an inexpensive but fast 24mm or 28mm wide angle lens primarily for shots of the night sky when I found this. For about $85 including shipping, this lens turned out to be much better than the standard Canon kit lens -- sharper, working better in low light conditions and giving you a wider field of view. And this is much cheaper than a 28mm prime lens. I've gotten some fairly sharp photos from this lens and was surprised to find it allows moderately fast auto-focusing in even dim lighting. The lens also allows you to get within two feet of the subject.
There are a few drawbacks, however. This Sigma is extremely susceptible to lens flare requiring much more care than you may be used to. The lens hood is attached to the staionary lens body and isn't at all useful at the lens' widest settings where the front of the lens is at it's most the forward position within the hood. Minor drawbacks also include that when the lens hood is reversed, zoom isn't accessible. The focusing motor is also louder than my other Canon and Tamron lenses.
All in all, though, I'd say this lens is a real bargain for $85. Note that I'm using the lens with a 35mm Canon EOS Rebel Ti (non-digital).
Post script - After using the lens quite a bit over the past weeks, I've really come to appreciate its ability to work in darker locations than typical inexpensive zoom lenses. In bright sunlight, however, lens flare still remains a major problem and shielding the lens with my hand has more than once lead to fingers framing my photos.

Click Here to see more reviews about: Sigma 28-70mm f/2.8-4.0 High Speed Zoom Lens for Canon SLR Cameras

This lens comes into its own when active people need a lens that can keep up with them. The min. focusing distance is 50cm. Aspherical lens elements are used for excellent correction of distortion.

Buy Now

Click here for more information about Sigma 28-70mm f/2.8-4.0 High Speed Zoom Lens for Canon SLR Cameras

SanDisk OEM Super-Speed Ultra II Plus Memory Card with Built In USB Flash Drive - 2 GB - For Camera, Camcorder, Mobile Phones, Gaming Devices, PDA - SDSDPH-002G-A11 - Bulk Review

SanDisk OEM Super-Speed Ultra II Plus Memory Card with Built In USB Flash Drive - 2 GB - For Camera, Camcorder, Mobile Phones, Gaming Devices, PDA - SDSDPH-002G-A11 - Bulk
Average Reviews:

(More customer reviews)
Very good Ultra II Memory Card - Works fine - have had a couple for 3-4 years - like them - Can take from camera direct to computer USB drive - No card readers needed - Great little picture
file!! Hold around 3000+ pictures. Recommend very highly!! Sometimes HARD to find - think they are not being used much - or no one knows about them??

Click Here to see more reviews about: SanDisk OEM Super-Speed Ultra II Plus Memory Card with Built In USB Flash Drive - 2 GB - For Camera, Camcorder, Mobile Phones, Gaming Devices, PDA - SDSDPH-002G-A11 - Bulk

Great Deal On Highest Quality Sandisk Ultra II Cards. Features Speed, Efficency and Capacity Combined, For The Professional Photographer Or For Private Use. Connects Directly Into USB Port For Transfer And Synchronization. Easy, User Friendly and affordable.

Buy Now

Click here for more information about SanDisk OEM Super-Speed Ultra II Plus Memory Card with Built In USB Flash Drive - 2 GB - For Camera, Camcorder, Mobile Phones, Gaming Devices, PDA - SDSDPH-002G-A11 - Bulk

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

Sony a55 DSLR Camera with 18-55mm zoom lens
Average Reviews:

(More customer reviews)
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.

Click Here to see more reviews about: Sony a55 DSLR Camera with 18-55mm zoom lens

Sony Alpha SLTA55VL DSLR with Translucent Mirror Technology (Black)

Buy Now

Click here for more information about Sony a55 DSLR Camera with 18-55mm zoom lens

Sandisk 16GB Extreme CF memory card - UDMA 60MB/s 400x (SDCFX-016G-P61, Retail Package) Review

Sandisk 16GB Extreme CF memory card - UDMA 60MB/s 400x (SDCFX-016G-P61, Retail Package)
Average Reviews:

(More customer reviews)
My friend wanted a UDMA memory card for his new Nikon D700 so I ordered the Sandisk Extreme using Amazon Prime. The card came very quickly, and a few thousand shots later, we're both very impressed.
Sandisk gives this card a 60MB/s rating (400x) and markets it towards DSLR users, primarily because they are the ones who will most likely be able to enjoy the advantages and notice the speed difference. Compared to my old generic 133x (20 MB/s) non-UDMA memory card, the improvements ranged from barely noticeable to fantastically faster.
The D700 has a large buffer so even when using a slowish card, the camera is equally responsive when taking single shots and non-RAW bursts. The differences become obvious when using continuous drive and flushing the buffer. Compared to the generic 133x card, the Sandisk Extreme shot faster, longer and was able to flush the buffer almost twice as fast.
In order to enjoy the advantages of UDMA memory cards, you first need a camera that supports it. To get the files out of the memory card faster, you'd also want to pair the card with a memory card reader than can keep up. While USB 2.0 has a theoretical peak maximum transfer rate of 60 MB/s, the practical rate of most USB card readers is 20MB/s or less. In fact, using my generic USB card reader, I couldn't tell the difference between copying/moving files between the Sandisk Extreme and my 133x. (I wouldn't bother with UDMA USB 2.0 Card readers either since they're not significantly faster) Personally, I'd go for a firewire-based reader like this: Lexar Compact Flash Firewire Reader or maybe an ExpressCard reader. Various reviews show that the Lexar firewire reader is 2-3x faster than a USB card reader.
ADDED 10/19/2010: USB 3.0 is also a fantastic option!
Keep in mind that this is not the only UDMA card that Sandisk makes. The Extreme IV's and Extreme III's 30 MB/s and faster are also UDMA enabled. (Extreme III 20 MB/s is not) Generally speaking, if a CF card is rated at 30 MB/s or faster, it supports UDMA.
If you need a new CF memory card and your camera supports UDMA, there's no reason not to pick one of these up. (Other than they're still a bit pricey) You'll have the best possible shooting experience with no drawbacks. Also, even if you don't opt to get the fast card reader, the USB readers will still work.

Click Here to see more reviews about: Sandisk 16GB Extreme CF memory card - UDMA 60MB/s 400x (SDCFX-016G-P61, Retail Package)

Get exactly the shots you want with professional-grade SanDisk Extreme® CompactFlash® cards. With up to 60 MB/s* read/write speeds, you'll see it takes more than a great digital SLR camera to bring your ideas to life. And with 16GB of space, you'll have room to capture it all in RAW+JPEG, and save the editing for later. SanDisk engineered its Power CoreTM Controller to take whatever your camera's buffer can dish out. By distributing image data across the card more rapidly and efficiently, this card delivers professional performance.

Buy NowGet 62% OFF

Click here for more information about Sandisk 16GB Extreme CF memory card - UDMA 60MB/s 400x (SDCFX-016G-P61, Retail Package)

SanDisk 16GB Extreme - SDHC Class 10 High Performance memory card (SDSDX3-016G-P31, Retail Packaging) - NEW 30MB/s version Review

SanDisk 16GB Extreme - SDHC Class 10 High Performance memory card (SDSDX3-016G-P31, Retail Packaging) - NEW 30MB/s version
Average Reviews:

(More customer reviews)
Regarding complaints about performance with HD camcorders:
SDHC cards are rated in MegaBytes per second (MB/sec). HD camcorders are rated in Megabits per second (Mb/sec). There are 8 bits per Byte.
Therefore, an HD camcorder with 24Mb/sec video capture requires (24Mb/sec) / (8Mb/MB) = 3MB/sec SDHC card. A Class 4 SDHC card with at least 4MB/sec data transfer is more than enough to capture full HD. Those camcorders are not designed to work with Class 6 and Class 10 cards.
Remember that Full HD, 1920 x 1080 pixels = 2,073,600 pixels, or 2 Megapixels. Digital SLRs shoot at 12 Megapixels with minimal lag time between shots requiring much higher data transfer rates than HD camcorders.
Consequently, people who use Extreme Class 10 SDHC cards with high speed digital SLRs seem happy, but people using them with HD camcorders are not. It can be confusing, but you must use the appropriate card for your application. Faster is not always better.

Click Here to see more reviews about: SanDisk 16GB Extreme - SDHC Class 10 High Performance memory card (SDSDX3-016G-P31, Retail Packaging) - NEW 30MB/s version

With 30MB/s read/write speeds, you'll see it takes more than a great digital SLR camera to bring your ideas to life. Get exactly the shots you want with the professional-grade responsiveness of SanDisk Extreme?? SDHC cards. You'll have room to capture it all in RAW+JPEG, and save the editing for later. Plus, you'll get faster photo and video transfers from camera to computer.

Buy Now

Click here for more information about SanDisk 16GB Extreme - SDHC Class 10 High Performance memory card (SDSDX3-016G-P31, Retail Packaging) - NEW 30MB/s version