SIGMA 8mm f/3.5

Digitally optimized circular fisheye auto-focus lens - 8mm F4 EX DG CIRCULAR FISHEYE This circular fisheye lens is used to produce circular images, creating vast distortion with an angle of view of 180° when attached to a full-frame digital or 35mm...

Great lens and excellent deal if you can find a quality one used.Beautiful quality macro lensPros:Lightweight, internal focus, useful telephoto range lensCons:Now discontinued. F3.5 fastest aperture (minor)

In terms of performance, I'd say this lens sits somewhere in between the Canon f1.4 and f1.2, and so is definitely great value and give superb results.More expensive than Canon, but WORTH it!Pros:Big glass that lets in lots of light! Great...

The Sigma 50mm f1.4 EX DG HSM is a phenomenal piece of glass. I never expected it to be THAT good!Sigma 50mm f1.4 EX DG HSM - It's Just THAT Good!Pros:Phenomenal Performance, Buttery Smooth Bokeh, Solid Build Quality, Fast HSM Focus, Cool Lens...

This is not a point-and-shoot compact. It's a photographer's camera. It will require you to think before pressing the button.Film has met its match!Pros:Image quality, image quality, image quality!Cons:Slow focus, slow lens (f1.8 would have...

I would not buy this lens again and would not recommend it. The barrel movement issues make it too much of a challenge in a rapid shooting setting.lens disappointmentPros:Covers a wide focal length in one lens. Nice case.Cons:Heavy, sluggish barrel...

Recommend it to a friend? -YesIt's OK...now I've got used to it.Pros:Looks good - a classy gold ring up front! Comes with a lens hood and pouchCons:Heavy , but then look at the focal-length range involved! Weird horizons at extreme settings.

8230;When wide mattersPros:…Cons:…

A wonderful lens at an unbelievably wide end of the zoom range. Sharp and compact. Hold it and fall in love.REALLY WIDE AND REALLY SHARP but wide open is only f/4 at bestPros:Snappy, contrasty, well made, well designed.Cons:Slow at maximum aperture.

Focal legnth expands your flexability and Sigma is a great value.An excellent alternative to prime glass dollars, maybe.Pros:This is a great product at a great price.Cons:Edge to edge sharpness can sometimes be an issue.