Canon PowerShot G15 User Guide - Page 247

Using Optional Accessories • Vignetting may occur (especially in the lower right) when the builtin flash is used. • Set the camera to maximum telephoto when using the teleconverter. At other zoom positions, vignetting may occur. • Use the LCD monitor to compose shots. The view through the viewfinder may be partially obstructed by vignetting. • Before use, remove all dust or debris from the conversion lens with a lens blower brush. • Stitching multiple images together accurately with the included software is not possible when shooting in [x] or [v] mode (=118) while using these lens attachments. Using a Lens Hood Still Images Movies Attaching the lens hood included with Tele-converter TC‑DC58E (sold separately) can reduce the effect of extraneous light outside the angle of view when shooting backlit subjects, or when the camera is aimed toward a bright light source. Attach the lens hood. zzFit the lens hood over the tele-converter as shown and attach it securely. zzWhen the lens hood will not be used, attach it inverted. • Vignetting may occur if you use the built-in flash when the lens hood is attached. 247