Canon G10 PowerShot G10 Camera User Guide - Page 262

260 Using the Lenses (Sold Separately) When attaching the Tele-converter TC-DC58D (each sold separately) you also need the Conversion Lens Adapter LA-DC58K. z When attaching the tele-converter, 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 teleconverter as this can result in blindness or impairment of vision. z If the built-in flash is used with the lens hood attached, the outer edges of shot images (especially the lower right) may be darkened. z When using the tele-converter, set the camera near the maximum telephoto. At other zoom settings, the image will appear as if its corners have been cut off. z If you use the viewfinder for shooting, a portion of the view will be blocked by these attachments. Please use the LCD monitor. „ Tele-converter TC-DC58D This lens is used for taking telephoto shots. The lens changes the focal length of the camera body's lens by a factor of 1.4x (the thread diameter is 58 mm). It is not possible to attach a lens hood or filter to the teleconverter.