Quote:
Originally Posted by rowan
I just had a quick look at the lens list and most of the L series telephotos are the same aperture at the wide and telephoto end of zoom range... the only exception seems to be the 100-400mm f4.5-5.6L IS USM
One other issue is where focus changes as you zoom, although that should be quickly fixed if you're in AI servo mode. (Even if you're not a quick half pump of the shutter will refocus...)
From memory there are several L lenses that are parfocal which means they don't need to be refocussed if they're zoomed. |
There was a video guy I knew who was telling me about lenses like that on video cameras. I've always wanted a lens like that. Any links on which L lenses are parfocal lenses? I known my 24-70 isn't.