For general guidance, the Type 250D close-up lens is designed for camera lenses with focal lengths from 35mm to 135mm. However, good results are possible using ...
It is NOT a macro lens, it basically just allows you to focus closer. On the G1X and G15 I tried it on, both of the cameras had problems in auto-focus adapting ...
Canon makes two close-up lenses, the 250D and 500D (not to be confused with the Canon EOS 250D and 500D cameras...). They're called lenses... But when is a lens ...