View Full Version : Berthiot Stellor 210 / F4

19-Jan-2010, 14:24
I have this lens in a serie 1b No. 6 - and found very little info about this lens

Do any of you have info about this lens - is it Petzval or other construction

Thanks for any help given


Steven Tribe
19-Jan-2010, 16:26
Claus, VM mentions a triplet series 1 200mm at F3.5 so perhaps series 1b is a compromise at F.4.