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Chapter 3 Lenses
4. Remove the old lens and place it next to the
new lens.
Any dust on the sensor of a DSLR prob-
ably entered the camera during the chang-
ing of lenses. This dust will show up as spots
on an image. Use the following procedure to
minimize the chance of dust on the sensor.
Changing Lenses
1. Place the new lens on a table or securely
in a camera bag with the back of the lens
pointing up.
2. Loosen the rear lens cap, but do not remove it.
5. Move the cap that you loosened earlier to
the old lens.
3. Hold the camera so the old lens is pointing
down. Keep the camera in this position
throughout the lens change to prevent dust
from falling in the camera.
(continued)
(continued)