focusing screen

  1. M

    EOS 90D: How to turn off the back screen display

    How do I turn off the back screen when not in use. When I use the screen to show the menu or settings I want to turn it off so that it does not show when composing through the viewfinder - not live view. I have forgotten how to do it. Thanks.
  2. skotbites

    Olympus OM-10 Focusing Screen?

    Hi, I'm not sure if this is the right place but here goes. I know the Olympus OM-10 doesn't have replaceable focusing screens as such BUT I'm currently playing around with one. The screen is smeared and I have found a replacement online. Unfortunately in my haste I did not take not of which...
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