To broaden the angle of your view, the Wide Converter WC-DC58N is available for the G3. Or if you want to pull back a little more, Tele-converter TC-DC58N is available. Both accessories require Conversion Lens Adapter LA-DC58B to be used with the camera.
This lens converts the master lens' focal length by a factor of 0.7, creating a focal length of 24.5mm for grand panoramic vistas.

Specification

Product
Product id	14391
Brand	Canon
Partnr	8158A001AA
EAN/UPC code	013803020328
Technical details
Magnification	0.7 x
Colour
Product colour	Black
Lens system
Focal length range	24.5 mm