Dioptric Adjustment - Canon EOS 1 Instructions Manual

6. Dioptric Adjustment

The viewfinder has a built-in dioptric adjustment mechanism that lets you
adjust the eyesight correction to achieve a sharp viewfinder image. This
also allows near- or far-sighted users to take pictures without wearing
glasses. The diopter can be adjusted within a range of –3~+1 dpt.
The adjustment range is from –3 dpt to +1 dpt (diopter). For adjustment exceeding this
range, use one of the optionally available Dioptric Adjustment Lenses.
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1
Press inward on both sides (nonslip
grip sections) of the eyecup frame.
2
While pressing in on the sides, slide
the eyecup frame up to remove.
3
Look into the viewfinder and turn the
dioptric adjustment dial in either
direction until the five focusing
points or the fine spot metering area
mark appear sharp.
• The diagram shows the dial in the
standard position (no compensation:
–1 dpt).
4
Reattach the eyecup to the camera.
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