lens comparison

[kiwi]

I need more popcorn

[nickant44]

At great personal risk, might I suggest the Sigma 8-16mm?
It's a very recent release with at least one good review online so far:
http://www.photozone.de/canon-eos/515-sigma816f4556apsc

[Tannin]

^ It's a little bit short on the long end .... but .. ohh .. the possibilities of that wide, wide, w i d e wide end ...... Probably cheaper than the 10-22 as well. Why not?

[bigdazzler]

sorry folks, I'll think very hard before I ask another question!

I apologise that your thread went off the rails mate ... as for Tonys advice, listen to him cause he does know what hes talking about.

Mod note: redacted personal comments. I apologise if I confused you in any way.

[Kym]

I've been out with Nel at an Aid for Africa fund-raiser dinner dance. All nice.
Now I get home... and I just did a bunch of heavy edits of this thread, I really wish I did not have to!
Stick to the facts in a polite way.

_____________

Ok, focal length is just that. The crop factor does not multiply the FL, it only appears that way.
Silly camera marketing seems to say it does.
Dave's post here illustrates it... http://www.ausphotography.net.au/for...ad.php?t=36999

[bigdazzler]

Stick to the facts in a polite way.

Thats the very least that we can all do.

_____________

Ok, focal length is just that. The crop factor does not multiply the FL, it only appears that way.

And thats probably what I should have said in the first place, and included the word equivalent somewhere in place of effective. My bad. Apart from alluding to the fact that a 20mm lens on a FF body will appear similar to a 10mm lens on a crop body (quite obviously incorrect, and a mistake on my part ) I dont see what I said to receive the barrage I received.

On a 50D, yes 10-22 is an UWA lens. On a 5D/1D camera a 16-35 is a WA lens. If you want super wide on a 5D, Tony is quite obviously correct, the Sigma 12-24 is the only available option. (as far as I know anyway ?? and Im about to buy one for my FF A850)

So again .. I apologise flash if I confused you with my initial post.

So summising, I guess if you want UWA .. as Tony says, the Canon 10-22 is the one you want for your 50D. Another one to maybe consider is the Sigma 10-20. Great lens with a really good reputation .. I loved mine until I upgraded to FF.

Peace