Sigma 500mm lens compatability with 40D ?

[nikovich]

Hi guys, can someone please let me know if the old Sigma 170-500mm f5-6.3 APO works on a 40d . I can get hold of one fairly cheap , and think it would be ok on a tripod..

cheers

Nick

[Malcolm Stewart]

My Sigma 500 f7.2 APO certainly doesn't work on my 10D and later bodies. (It was OK on my Eos 50E film SLR.) If the info isn't on the Sigma website, I suggest you email your local Sigma distributor.

[Bhoggy]

I had one that worked fine with my 350D - don't know for certain that it would work with 40D but can't think why it wouldn't. Can you not take your body and give it a quick try before you buy?

[nikovich]

Cheers guys. I think I'll just take the body in and test it to be on the safe side. I know that the non DG one's won't auto-focus with newer bodies.

[stevo]

Cheers guys. I think I'll just take the body in and test it to be on the safe side. I know that the non DG one's won't auto-focus with newer bodies.



All the DG means is its coated specially for digital sensors(to stop flare I think)I wouldn`t of thought it`d make difference with a newer body.Its usually the chip in the lens that causes problems.


Steve.|:P||:P|

[nikovich]

All the DG means is its coated specially for digital sensors(to stop flare I think)I wouldn`t of thought it`d make difference with a newer body.Its usually the chip in the lens that causes problems.


Steve.|:P||:P|

Steve, the older non-DG one's have older chips mate, and I've heard a few tales about those one's not retaining auto-focus.

I've since decided to save my pennies and get something else :-)