Daire Quinlan
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- Joined
- Sep 8, 2008
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Hi all, I recently got a 1930s 90mm Angulon, quick question. Every reference I've seen indicates a 40.5mm filter thread for the f/6.8 90mm Angulons, but that seems to be a newer version ( I assume same or similar optical formula, but the shutter mounting is different looks like). Mine definitely doesn't have anything like a 40.5mm mount, the only possible thread is around the front element, and looks to be ~24/25mm or so.
So, has anyone got the same older Angulon and successfully used a filter and if so what size ? Or is this not meant to be used as a filter thread at all ? I can't imagine that it wouldn't vignette a bit unless the filter was pretty thin.
Thanks, Daire
So, has anyone got the same older Angulon and successfully used a filter and if so what size ? Or is this not meant to be used as a filter thread at all ? I can't imagine that it wouldn't vignette a bit unless the filter was pretty thin.
Thanks, Daire