Sigma AF 12-24mm f/4.5-5.6 EX DG ASPHERICAL

Sigma 12-24mm I purchased this lens to make better use of the full frame sensor on my camera. The lens is performing very well. The lens is more sharp than many reviews would lead one to believe. Some vignetting is noticeable at 12mm and f5.6, not so much at other f stops. This was expected so it does not phase me too much. Wow, is all I can say about looking through the view finder with this lens attached. I keep thinking, this is like a fisheye without the fisheye look. This was a good purchase for outdoor photography; for indoor work, with no flash, something in the f/2.8 range would be the way to go, but for all else the Sigma 12-24mm lens rocks. Not too shabby for HDR stuff either, fyi.

ultra ultra wide What i really like about this lens is the ultra wide angle of this lens on a full frame dslr or 35mm film slr camera. It is the widest you will probably find for a while. It is surprisingly sharp for being so wide after stopping the aperture down a bit. What's pretty nice about the lens is that it comes with a filter adapter for 82mm since the front of the lens protrudes out. The downfall is that it won't work for a full frame because it will be a circle in the frame with the picture and everything else outside of it will be black unless you are zoomed in to the max 24mm. I suppose you could rig something up or us a cokin filter adapter. Another thing I'm not too pleased with but will not disqualify it for me is that it's not a fast lens. The fastest aperture is at f/4.5 when at 12mm. For most like myself will probably be using this for landscapes and scenery so a tripod will come into play so no big deal. All in all its a great lens for creative effects or landscapes and what not. I would definitely suggest this lens but do not expect much hand held shooting. I especially like this lens for long exposure photography. If you decide to join the wide side, enjoy, because i know i am.Read full review

Sigma 12-24mm f/4.5-5.6 This lens is astonishing! First of all it is The Widest zoom and second widest lens after a Voigtländer 12 mm lens that needs a Bessa L camera. Best feature is that it has much less of barreling distortion than Canon' 16-30? mm lens. Light fall off is very moderate and is easily corrected through Photoshop's Distort? Lens Correction-Vignette filter. The only problem my lens has is that F-stop doesn't close if the lens is set to 14mm or wider. But then problems can happen w. anything and I got this lens used from the nastiest Ebayer I've ever encountered ID- "81620". I was afraid 12mm would be too wide and corner distortions too much but I' very happy w. my images. I shoot mostly interiors and architecture. This lens became my #1 working lens. For samples see my website- www.marchphoto.com Oleg MarchRead full review