The adapter is 2" in diameter, just large enough to go around the lens barrel but smaller than the Canon adapter which many people have reported blocks some of the sensors and the flash.
The 49mm size on the end of the adapter is one of the most common filter sizes. The selection of filter/lenses is not only very large but competitively priced compared to Canon's 58mm. The Canon Macro (close-up) lens has a street price of about $115 and is less powerful (and less versatile) than the macro sets that we sell.
Click here to see a comparison of close-up shots between a regular G1, a G1 with Canon's Macro lens and a G1 with our Lensmate Adapter and Macro Filter set. Note: The Canon G2 has the identical lens as the G1 so you would get the same macro results with a megapixel increase in resolution over the G1.
But more about the adapter: it is large enough not to vignette at any focal length. We've heard of another adapter that reduces the lens opening to 37mm- we would suggest that the smaller "glass" would have to increase the potential for distortion and vignetting. If you have a collection of filters/lenses already and require a size other than 49mm, we offer "step-up" rings (and "step-down" rings are readily available) to match just about any size lens/filter to the Lensmate adapter.
The Champagne adapter is $21.95 and does not include filters. We also sell Macro-filter sets, UV filters, IR filters and Polarizers for the adapter.
Click here to go to our G-Series order page.