tag:blogger.com,1999:blog-2974094041951992980.post6129875514326133924..comments2024-03-24T00:13:41.033-07:00Comments on Beomagi's thoughts...: Focal Reducers with DSLR lenses and light gain math...Beomagihttp://www.blogger.com/profile/00469223835355067867noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-2974094041951992980.post-17673095338300528872017-11-09T13:04:47.658-08:002017-11-09T13:04:47.658-08:00good contend like it and your effort to share gree...good contend like it and your effort to share greetings martin<br />Jesterhttps://www.blogger.com/profile/01381235819541794721noreply@blogger.com