The truth about fast glass on m4/3

Started May 21, 2012 | Discussions thread
Lights
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Re: Who cares about the total light flux
In reply to rrr_hhh, May 21, 2012

rr_hhh said:

You are just messing things up. Who cares about the total light gathered ( but perhaps the pixel peepers shooting at high ISO) ?

For all practical purposes, what is important is that the light intensity is the same : F2.8 on mft will require the same shutter speed as F2.8 on a FF or an APSC sensor.
DOF however will be multiplied by 2.

That is correct. A Fstop is an Fstop. The crew of the Starship Enterprise might indeed care about total light flux, since it might interfere with their neutrino beam communications network. The DOF changes, the light is the same for the given area.
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