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

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This PDF 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.

Canon EOS 20D—Replacing the Focusing Screen

TOOLS AND MATERIALS

The following tools and materials are recommended for the procedure described by
this article:
• Clean washcloth, small cloth towel, etc.
• Sheet of white bond paper
• Scissors
• (Optional) One Pec Pad or equivalent (camera lens wipe)
• Small tweezers with smooth flat tips (be sure they have no sharp edges or
“burrs”)
• Round wood toothpick (must have fairly sharp point)
• Camera dust blower or ear syringe
• Small block of wood about the size of a small matchbox (or a matchbox)
• Replacement focusing screen
If a dental mirror is available, it is very helpful in studying the battle zone to get an appreciation of where the retaining frame latch is, and may be useful in the actual procedure.

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Aperture Digital Photography Fundamentals (Manual) Pdf

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This document explains digital terminology for the
professional photographer who is new to computers and digital photography.
Aperture is a powerful digital photography application designed to help you produce thebest images possible. However, many factors outside of Aperture can affect the quality of your images. Being mindful of all these factors can help prevent undesirable results.
The following chapters explain how your camera captures a digital image, how images
are displayed onscreen and in print, and how cameras, displays, and printers measure
image resolution.

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The Textbook of Digital Photography Pdf

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This text introduces the entire panorama of digital photography and includes ..... era of digital photography matures, it won’t be long before the “digital” .....


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