Sigma F/2.8 70-200mm

starscream · 6 Jul 2007 at 14:36

Anyone have any experience with this lens? It's not a lot more than the Canon F/4 70-200mm. Can't really stretch to a Canon 70-200mm F/2.8 so its a choice between these 2 really.

starscream · 6 Jul 2007 at 15:38

Sounds like the concensus is that the Sigma is softer, but better in low light, the Canon is sharper but worse in low light?

Realistically, how much difference does the extra couple of stops make to shooting indoors? I hate using the flash, but I want nice sharp pics and can't afford a Canon F/2.8 70-200 :/

starscream · 6 Jul 2007 at 16:14

olv said:
well naturally the sigma is going to be better in low light, this is not one of the canons strong points being f4. what body are you using? if i had a 30d i'd be more than happy shooting iso3200 in low light at f4

5D

starscream · 6 Jul 2007 at 21:40

9designs2 said:
F2.8 to F4 is One stop, so rest ISO setting from 100 to 200 etc and problem solved !!!

I think even ISO200 is going to be a bit low indoors. Shutter speed will need to be about 250 with the camera handheld

starscream · 6 Jul 2007 at 22:42

nolimit said:
starscream, if you have 5D now don't be afraid to pump the ISO upto 1600 indoor! you will still get great results.

Oh I know

If the 5D is good enough to shoot indoors with the Canon 70-200mm I'll go with that. It's just that even though the 5D is amazing in low light, to shoot with at 200mm it's going to need a high shutter speed and I'm checking that it will be able to cope without needing to as open as F/2.8