Maybe we don't need more than f/2 after all?

Started Mar 22, 2012 | Discussions thread
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Peter Herth
Regular MemberPosts: 496
Re: I could be wrong
In reply to odl, Mar 23, 2012

While this would be possible with lenses which transmit their aperture to the camera, the exposure also gets brighter with lenses which do not transmit their aperture to the camera. I shoot manual f/1.4 lenses on my Pen, and can clearly see the additional light when going from f/2 to f/1.4.

When you shoot a lens wide open, of course the vignetting of the lens is at its relative maximum, and the efficiency of the pixels might be slightly less than when lens is stopped down. But in total, this does not change that a lens at 1.4 gives you much more light than at 2.0 - if its only 0.9 stops and not 1, I will happily take it anyway.


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