Sigma 17-70mm f/2.8-4 DC Macro OS (Optical Stabilizer) HSM AF Lens Kit, for Canon EOS Cameras with Tiffen 72mm UV Wide Angle Filter, Professional Lens Cleaning Kit, Lens Cap for Wide Angle Filters

Sigma 17-70mm f/2.8-4 DC Macro OS (Optical Stabilizer) HSM AF Lens Kit, for Canon EOS Cameras with Tiffen 72mm UV Wide Angle Filter, Professional Lens Cleaning Kit, Lens Cap for Wide Angle Filters Review

Sigma 17-70mm f/2.8-4 DC Macro OS (Optical Stabilizer) HSM AF Lens Kit, for Canon EOS Cameras with Tiffen 72mm UV Wide Angle Filter, Professional Lens Cleaning Kit, Lens Cap for Wide Angle Filters Overview

Sigma Corporation adds unique, anti-shake technology to award-winning 17-70mm lens Sigma announced the new Sigma 17-70mm F2.8-4 DC MACRO OS HSM. This large aperture standard zoom lens offers an aperture of F2.8 at the 17mm focal length and is ideal for many situations such as portraits, sports, macro and general photography The OS (Optical Stabilizer) function offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible. The maximum aperture of F2.8 makes this lens ideal for hand held photography as well as producing an attractive background blur and high speed auto focus. This lens has a minimum focusing distance of 22cm (8.7..) throughout the entire zoom range and maximum magnification ratio of 1:2.7, making it ideal for close-up photography. It is possible to focus as close as approximately 4.7cm from the tip of the lens to the subject making this lens particularly useful for close-up photography. Three aspherical lenses and one ELD (Extraordinary Low Dispersion) glass element provide excellent correction for all types of aberrations. High image quality is assured throughout the entire zoom range. The Super Multi-Layer Coating reduces flare and ghosting and provides high contrast images. The incorporation of HSM (Hyper Sonic Motor) ensures a quiet and high speed AF. This lens has a rounded 7 blade diaphragm which creates an attractive blur to the out of focus areas of the image

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*** Product Information and Prices Stored: Jul 17, 2010 17:01:04

Canon EF 35mm f/2 Wide Angle Lens for Canon SLR Cameras

Canon EF 35mm f/2 Wide Angle Lens for Canon SLR Cameras Review

I bought this lens because I wanted a good, fast prime lens for indoor use on my 50D. I also own the EF 50mm f/1.4 which I love, but indoors I find it less useful due to the crop frame sensor of the 50D.

I knew I wanted something in the wide angle range (due to the 1.6x crop frame of the camera) so I looked at the EF 28mm f/1.8 USM and the EF 35mm f/2.0. Based on reviews here at Amazon as well as outside websites I decided to go with the 35mm f/2.0 because the 28mm seems to have consistently negative reviews. I was also able to pick up this 35mm for about 0 less than the 28mm so it seemed to be a better investment.

I have now had the 35mm for about 1 month and taken over 300 photos with it on my camera. All in all I am happy with the lens and it has been on my camera nearly the whole time I have owned it. The images are sharp and the color is good. This is a fast lens and you can get some great bokeh when you open it up wide which is nice when you want to get creative with your photos.

However, I am more than frustrated with the auto focusing with this lens. It does not seem to want to focus on the subject of the frame, many images end up out of focus if I let the camera do all of the work. When left to its own devices, many times this lens will not produce images that are in focus, or at east not what you wanted in focus.

The only way I can get the great photos that this lens is capable of is when I take control of the focusing points and select exactly what I want in focus for each shot. This is not overly difficult and I am used to it because I am generally selecting the desired auto focus point for each shot, but this lens seems to be abnormally challenged at focusing on the desired subject on its own.

This has been a major disappointment because unfortunately I know that when someone else (who is not familiar with how to use the camera) picks it up it is 50/50 whether the photo turns out, especially in low light situations.

I feel that this is a problem if you are looking at this lens to be a good all around indoor prime for candids and family shots and especially if you want to be in some of the photos.

This is a good lens if you are familiar with how to use the auto focus selectivity features of your camera. The image quality is good, similar to the 50mm f/1.4, and definately better than any kit lens you may have, but don't expect to put this lens on your camera and never have to learn how to really use it on your camera.

Canon EF 35mm f/2 Wide Angle Lens for Canon SLR Cameras Feature

• EF mount; wide-angle lens
• Compact and lightweight
• 35mm focal length
• f/2 maximum aperture
• Overall linear extension system with Autofocus drive

Canon EF 35mm f/2 Wide Angle Lens for Canon SLR Cameras Overview

EF 35mm f/2

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*** Product Information and Prices Stored: Jul 06, 2010 13:01:05