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Attaching and Detaching a Lens
To zoom, turn the zoom ring on the lens
with your fingers.
If you want to zoom, do it before
focusing. Turning the zoom ring after
achieving focus may throw off the
focus slightly.
While pressing the lens release
button, turn the lens as shown by
the arrow.
Turn the lens until it stops, then
detach it.
Attach the dust cap to the detached lens.
To owners of the EF-S18-200mm f/3.5-5.6 IS kit lens:
You can prevent the zoom ring from
extending out while you are carrying it
around. Set the zoom ring to the 18mm
wide-angle end, then slide the zoom ring
lock lever to <
LOCK
>. The zoom ring can
be locked only at the wide-angle end.
About Zooming
Detaching the Lens
Do not look at the sun directly through any lens. Doing so may cause
loss of vision.
If the front part (focusing ring) of the lens rotates during autofocusing, do
not touch the rotating part.
Image Conversion Factor
Since the image sensor size is
smaller than the 35mm film
format, it will look like the lens
focal length is increased by 1.6x.
Image sensor size
(22.3 x 14.9mm / 0.88 x 0.59 in.)
35mm image size
(36 x 24mm / 1.42 x 0.94 in.)
COPY