Sigma 8mm f 3.5 dg fisheye %28for canon%29

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Sigma 8mm f/3.5 DG Fisheye for Canon

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The Sigma 8mm f/3.5 DG Fisheye for Canon

The Sigma 8mm f/3.5 EX DG Fisheye is a specialty lens that provides a complete 180° field of view on full-frame Canon DSLRs. Key features include:

Circular Fisheye. If you’re looking for a full circular image shooting with a Canon 1DX/5D Mark III/5D Mark II/6D, this is the lens you want. When used on a crop-sensor camera like the Canon 70D/60D/7D/T5i, it provides a partial circle.

Specific Use. The Sigma 8mm gives interesting (bizarre, some say) effects and is sometimes used for scientific applications because it provides a consistent angle throughout its 180° field of view. Well, it could be used for scientific purposes, but mostly it’s used to create weird "cow’s eye view" scenics: think about it--you take a picture, turn around and take another picture, and now you’ve got a 360° panorama. This is not simply an ultra-wide angle lens. Circular fisheye means the image is a circle in the center of your frame; it does not cover the entire frame. If you’re not looking for a full-circular image, please don’t buy it. You’ll be unhappy.

Roger's Take

Full disclosure here: I’m not a fan of the fisheye look, especially the full-circle fisheye look (if you don’t understand what a full-circle fisheye is, it gives you a circular image in the center of your rectangular picture, with black edges all around it). But I will say this is a sharp lens with a huge depth of field. And the images are incredibly panoramic when "de-fished" in software, which is what I do with them mostly. The depth of field makes autofocusing almost unnecessary, and the image is very sharp in the center (not so much on the edges, especially after software de-fishing, if that’s what you choose to do). There’s some chromatic aberration and edge vignetting to deal with in software also.

I guess you can tell I’m not overly enthusiastic. To me, circular fisheye lenses are the asparagus of photography. Some people have acquired the taste. I’d rather go hungry.

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