prodigy2k7
No longer a newbie, moving up!
- Joined
- Apr 22, 2008
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- 1,668
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- California, USA
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EF 70-200mm F/2.8 IS USM vs EF 70-200mm F/4 USM in lighting...
When just looking at stops, while the F/2.8 IS lens is opened all the way to F/2.8 and IS is turned on, Does it allow you to take a picture equilivant to a lens of F/1.0 with no IS?
Also, does the F/2.8 IS allow 4 stops more light (3 stops for IS then another stop for bigger aperture) than the F/4?
Sorry I dont know how to ask questions like those. I hope you can understand what im asking. Am I on the right track?
Im trying to understand how ISO/shutter/aperture work together in f-stops and whatnot... Also looking at lenses... and how they work with different lighting conditions...
When just looking at stops, while the F/2.8 IS lens is opened all the way to F/2.8 and IS is turned on, Does it allow you to take a picture equilivant to a lens of F/1.0 with no IS?
Also, does the F/2.8 IS allow 4 stops more light (3 stops for IS then another stop for bigger aperture) than the F/4?
Sorry I dont know how to ask questions like those. I hope you can understand what im asking. Am I on the right track?
Im trying to understand how ISO/shutter/aperture work together in f-stops and whatnot... Also looking at lenses... and how they work with different lighting conditions...