Hi to all,
I just got my "new" Berthiot Stellor F3,5 F=360 No 6 Serie Ia.
It has a strange aperture scale, at least unknown to me, which goes as follows:
3.5 - 5 - 7 - 10 - 14 - 20 - 28.
I hope someone out there can help me to convert these into convenzional f-stops.
Thank you very much in advance and best regards form France.
Thierry Schreiner
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