 Estella Aguilar |
sigma vs canon what is the difference between a canon lens and sigma. I noticed the prices. but what are the pros and cons of sigma. would they work out
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BetterPhoto Member |
you can't use both in the same sentence
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- Darren J. Gilcher Contact Darren J. Gilcher Darren J. Gilcher's Gallery |
Check out photozone.com. They do great lens reviews there.
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Jon Close |
It depends on the particular model of Sigma lens. Some are as good or better than Canon's, some are not as good or well made, and still others are unique and Canon does not offer a comparable model (and vice versa). Every Canon EF lens made will work with every EOS camera made. The same is not true of Sigma lenses. Canon's electronic lens/camera communication is proprietary. Sigma does not license the mount and codes, they attempt to backward engineer it. Mostly they get it right, but there are problems with several (not all) of their lenses made before 2002 when used with EOS bodies that were introduced in 2002 and later. (list of affected lenses) Sigma has fixed the problem with their current line-up, and will either replace the electronics of the faulty lens or give a somewhat generous allowance to trade to a current model. But there is no guarantee that a similar problem may occur with future EOS cameras.
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Bob Chance |
Good response John. On the same page of threads was another similar question about Sigma lenses. It's the mechanical and electronic mating that keeps me from buying any third party lenses. They may have a few lenses out there that are just as good and perhaps better than Canons counterparts, but I have had experience in the past with a third party lens not correctly reporting it's maximum aperature to the camera. And like you said, Canon doesn't license the specs to outside manufacturers so you can never be certain if it's going to be a 100% mate. And if something is seriously wrong with it, it could damage the electronics in the body.
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