Replacing the Focusing Screen on the Canon EOS 20D Digital SLR Camera

Source: doug.kerr.home.att.net
Topic: Digital Camera

Short Desciption:
The author has prepared these instructions based on his best knowledge and. experience. (Optional) One Pec Pad or equivalent (camera lens wipe) ...

 

Content Inside:
ABSTRACT This article gives step by step instructions for replacing the focusing screen on the Canon EOS 20D digital SLR camera, with some illustrations.

INTRODUCTION The focusing screen on the Canon EOS 20D digital SLR camera may be readily changed in the field. Often this is desired in order to replace the factory screen with an alternative screen having manual focusing aids, such as a split image prism and/or a microprism field, or merely to replace a damaged screen.

The details, including the information on determining the proper orientation of the new screen, are predicated on the installation of a new OEM screen or an aftermarket screen closely adhering to the configuration and dimensions of the OEM screen.

If you have a screen for which this is not so, please get the necessary supplemental information from the manufacturer or distributor. I understand that with some aftermarket screens, the shim installed at the factory to properly position the focusing screen must be removed.

If you have such a screen, please get the necessary supplemental information from the manufacturer or distributor. Do not be dismayed by the length of these instructions. The procedure is straightforward. I have given a lot of detail to avoid any misunderstanding. Thorough preparation and attention to detail are the key to a successful operation, and I have included many hints and kinks that can make the process easier and safer (especially the first time!).

CAVEAT The author has prepared these instructions based on his best knowledge and experience. Any user will undertake this procedure at his own sole discretion, ...

 

 

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