@albotrose yes you can. Check [https://www.youtube.com/watch?v=0TdodfkVEME|this video.] Not an easy task and you could always consider replacing the complete lens assembly.
+
Looks like the G10/G11/G12 use the same lens setup. In that case this manual will help you with the tedious work on the lens. [document|3250]
@albotrose yes you can. Check [https://www.youtube.com/watch?v=0TdodfkVEME|this video.] Not an easy task and you could always consider replacing the complete lens assembly.