Quote Originally Posted by rich815 View Post
This page discusses this in one of the sidebars. Does not seem like it to me.

http://www.mir.com.my/rb/photography...eens/index.htm
Rich,
sorry, but I can't see on that page where it says you can't use F3 screens on the F4. It refers F4 screens on a F3 and F5 screens on the F4. If you would like to quote the sentence/s that refer to the F3 screens, I would appreciate that.
I never used any other screen on my F4s as I never needed them, but I remember to read elsewhere that you need to remove the F3 screen from its mount and use a F4 mount to be able to use them.