It sounds like 52 with step up ring since its maximum diametre is 68mm, so enough space for a 52mm mount.mattias wrote:wow, great price. very interesting. when it says double mount does it mean the rear element is 37mm and it includes a step down ring or is it 52mm with a step up ring? i'm asking because of vignetting issues of course.jpolzfuss wrote:The Soligor 1.33x-anamorphotic attachments
/matt
It also says it´s only suitable for normal and tele use (larger than 50mm).