Determining effective f-stop

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elf
Posts: 1416
Joined: Sun Nov 18, 2007 12:10 pm

Determining effective f-stop

Post by elf »

I ran across this patent when looking for the definition of effective f-stop: http://www.patentstorm.us/patents/4531835/claims.html. It would seem that you only need to project the exit pupil on the sensor, the question is how?

DaveW
Posts: 1702
Joined: Fri Aug 04, 2006 4:29 am
Location: Nottingham, UK

Post by DaveW »

Nikon DSLR's do it for you and show it in the LCD readout!

DaveW

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