Sigma 28-70mm f/2.8 EX DG IF Aspherical Lens for Canon SLR Cameras
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- Zoom lens with Canon AF mount
- Special low-dispersion glass for high image quality
- 28 to 70 mm focal length
- f2.8 maximum aperture
- Inner focusing system allows add-on hoods and filters
DescriptionThis F2 compact, large and constant. 8 hours and zoom is ideal for digital SLR cameras. Two SLD elements and four aspherical lenses provide the ultimate correction against distortion as well as all types of aberration, especially spherical aberration. Its advanced optical design ensures high performance throughout the zoom range. The use of aspherical lenses in the construction of this objective not only corrects aberrations but also produces very little. . . More>>
Sigma 28-70mm f/2.8 EX DG IF Aspherical Lens for Canon SLR Cameras
5 Comments zu “Sigma 28-70mm f/2.8 EX DG IF Aspherical Lens for Canon SLR Cameras”
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I am an amateur photographer, but that there were situations where I needed a lens of this focal length that can accommodate less light available. My goal is that Canon kit to F5. 6, and I heard that it was generally a poor quality lens. Well, if it is, which makes this Sigma, but nothing spazzatura.Dopo receiving the lens, I noticed that most images were very soft, almost beyond discussion. So we made a series of controlled tests against my Canon Lens Kit, using both autofocus and manual focus with the Sigma (on a tripod, of course). In all cases, the product of the Canon lens cleaner images. How could this be, I chiesto.Così I sent pictures and explanation in order to Sigma for repair or correction. Two weeks later returned the lens shows that they have adjusted the AF, and tested the lens, and everything was OK.Mi beg to differ. I ran more tests, and guess what! The Canon lens wins again. Needless to say, if you want sharp images, forget it. Probably pay double for similar Canon lenses, but you’ll probably twice as many beautiful images.
Purchased to take pictures of basketball games High School and very pleased with the sharp, crisp stop-action film.
This objective is a bit “heavy on the XTi (compared to 35 millimeters and 50 millimeters Early shoot normally). Sent very well done and can focus very close. I think it is an ideal target for the money and performs well .
This objective is an extraordinary experience of glass at an affordable price. Although I must admit a preference for signing Canon lenses, especially the line by line, this lens is very strong and shows little or no blurring Tack nervously weak. For a larger goal which is a perfect economical choice for those who want to get better images.
This is an excellent goal. I used it extensively on 1D, Rebel XT and 20D. The goal is strong enough for many purposes of f / 2. 8, and extremely SHARP stopped down a bit ‘of f / 3. 5 or f / 4. 0, at all focal lengths. I have great respect for the Canon 85 mm f / 1. 8, f 50 mm / 1. 8 and 35mm f / 2. 0, all targets of Fame. I think this goal with very competitive – and in some cases, exceeding – all in sharpness, contrast and color. Focus is fast enough for most targets of action, impressive for a non-USM.Ho even this target, compared to my Canon 28-135mm USM Image Stabilizer. I found the Sigma 28-70 f / 2. 8 to be significantly superior in terms of image quality. I sold the 28-135 IS. Sigma is almost always one of my Digital reflex.Una Important note – INFORMATION AND PICS I SAW indicate that this objective is superior images MORE EXPENSIVE Sigma 24-70mm f / 2. 8. I recommend SAVINGS bit ‘of money, HOW THE LENS cheaper and more photos uscirne.Ho used lots of SIGMA AND CHARGES ON MY LENS DIGITAL SLR, and is one of the best, Bar None.