Canon A590 IS - Manual (Page 180)

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The camera supports use of the separately sold Wide Converter WC-
DC52, Tele-converter TC-DC52A and Close-up Lens 250D (52mm). In
order to attach these lenses, you also need to use the separately sold
Conversion Lens Adapter LA-DC52G.
„
Wide Converter WC-DC52
Use this converter for taking wide-angle shots. The wide converter
changes the focal length of the camera body’s lens by a factor of 0.7x
(the thread diameter is 52 mm).
„
Tele-converter TC-DC52A
This lens is used for taking telephoto shots. The lens changes the focal
length of the camera body’s lens by a factor of 1.75x (the thread
diameter is 52 mm).
Using the Lenses (Sold Separately)
z When attaching the wide converter, tele-converter or close-
up lens be sure to screw it on securely. If they come loose,
they may fall from the lens adapter, posing risk of injury from
shattered glass.
z Never look into the sun or into strong light through the wide
converter, tele-converter or close-up lens as this can result
in blindness or impairment of vision.
z If you use the flash when shooting with these attachments,
the outer area of the recorded image (especially lower right
corner) will come out relatively dark.
z When using the tele-converter, set the camera to maximum
telephoto. At other zoom settings, the image will appear as if
its corners have been cut off.
z When using the wide converter, please set the camera to
maximum wide angle.
z If you use the viewfinder for shooting, a portion of the view
will be blocked by these attachments. Please use the LCD
monitor.