Posted: Sat Nov 25, 2017 2:19 pm Post subject: biotar 58mm mount type |
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gi0rgi0ba wrote:
Hi ,
I have bought this biotar 58mm f2.0 nr.3334326, black early serie.
I have a doubt about its mount type. I measured its thread and is diameter=39.85mm, pitch=~1mm. (see pictures)
This is not a a m42x1 (my takumar has thread diameter=41.90) nor a M39x1 (my schneider-Kreuznach has thread diameter=38.90).
What is it then and on which kind of camera was builded for? Is it for Praktiflex M40×1 thread?
Thanks in advance
Giorgio
![](http://forum.mflenses.com/userpix/201711/10467_DSC_00083_1.jpg) _________________ lenses:
CZJ Biotar 58mm f/2 silver (M42),CZJ Biotar 58mm f/2 black (M40),CZJ Flektogon 20mm f/4 (M42),CZJ Flektogon 35mm f/2.4 (M42),
Staeble Kata 45mm f/2.8 (M39-Paxette), Staeble Choro 38mm f/3,5 (M39-Paxette),
Schneider-Kreuznach Xenar 50mm f/2.8 (M39-Paxette)
Asahi Pentax SMC Takumar 50mm f/1.4 (M42)
Asahi Pentax SMC Pentax-M 28mm f/2.8 |