Depth-of-field Preview

Using the Eyepiece Shutter

If you take a picture without looking through the viewfinder, stray light may enter the eyepiece and affect the exposure. To prevent this, use the built-in eyepiece shutter before taking the picture.

To cover the eyepiece with the eyepiece shutter, turn the lever as shown by the arrow.

To open the eyepiece shutter, turn the lever in the opposite direction.

Depth-of-field Preview

The depth of field is the range of acceptable focus in front of and behind the point of focus. The depth of field changes depending on the aperture. Press the depth-of-field preview button to stop down the aperture and preview this range of acceptable focus.

• Pressing the depth-of-field preview button also sets AE lock.

• The depth-of-field preview button does not function during AF operation.

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Canon EOS-1V HS manual Depth-of-field Preview, Using the Eyepiece Shutter