Medium Format Forum

Register a free account now!

If you are registered, you get access to the members only section, can participate in the buy & sell second hand forum and last but not least you can reserve your preferred username before someone else takes it.

Am I compensating for my newer screen and older metered prism



I have a 500CM with the newer brighter screen. I also have the older 45° metered prism.

I took some readings today with my light meter and determined there was 1 stop difference.

If I am using 100 speed film, I would set the meter to 50 speed to compensate for the brighter focus screen?

Does 1 stop seem normal?