Viewfinder D40/D50 Surprise

Started Jan 14, 2007 | Discussions thread
TheronFamily Forum Pro • Posts: 19,983

Rick Sterling wrote:

Depending on the design,
even auto-focus and auto-exposure may benefit greatly from a fast
VF system.

not so.

The D50 has dedicated AF and metering sensors. The light thru the lens is thrown via the secondary mirror to the AF sensors. Granted, this light is taken away from the total light reaching the VF. The 420 seg meter gets light from the focusing screen.
So there is no benefit besides framing for the VF.
You can focus and meter succesfully without even having a VF.

Light is reflected towards the VF and not away from it for the internals of the camera.
Hope this helps.

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