depends on alot more other factor than just aperture...hi all,
have this question I always want to ask. Does a prime lens with the same max aperture (e.g 2.8) focus at the same speed or faster than a zoom with the same max aperture. Will a macro prime lens has the same speed as a non marco prime lens?
Thanks
depends on alot more other factor than just aperture...
Can you explain on it? Shooting in the same light conidition, which focus faster? For sports, which gives a more sharp picture?
for sports, u need long telephoto lens for eg. X00mm ones , plus tripod to support them, plus image stabliser feature of the lens to achieve sharp photos..
Does a prime lens with the same max aperture (e.g 2.8) focus at the same speed or faster than a zoom with the same max aperture.
Will a macro prime lens has the same speed as a non marco prime lens?
IS is bad for sports...as you would not want IS to counter your movement...
IS doesn't help you freeze movement. It just stabilises your lens. When shoot sports, you normally want to freeze motion so that means high shutterspeeds. With high shutterspeeds you really don't need IS anymore. However, if you're talking about panning shots then IS in panning mode helps somewhat since it evens out the vertical movement of your lens while allowing you to carry on with the horizontal tracking.
if you done it correctly, IS or not, you still get a sharp shot (subject)if panning without IS, wad happens? :think:
Yeah, you can definately pan without using IS. It's just that with IS, your success rate tends to be higher.
For example.
Sigma 70-200 F2.8 @ 200mm, 1/50s, handheld without IS:
http://www.sgl.per.sg/users/denosha/gallery/powerboat04/Powerboat_panning_2
Canon 70-200 F2.8L IS @ 200mm, 1/50s, handheld with IS mode 2 (panning):
http://www.sgl.per.sg/users/denosha/gallery/powerboat05/Powerboat_panning_9