Vince Lupo
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I noticed that some lenses for Robot Royal 36 are termed '2 cam'. Are there different types of lens mounts for the Royal? What exactly does '2 cam' mean? Is that type of mount rangefinder coupled?
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Established
The 24x36 format of the Robot Royal 36 required its own special lenses. These were:-
Schneider Xenogon 2.8/35mm
Schneider Xenar 2.8/45mm
Zeiss Sonnar 2.0/50mm
Schneider Tele-Xenar 3.8/75mm
when the 36 was launched.
These lens have 2 prominent cams on the bayonet block, where as lens designed for the Royal 24 have only one. As lenses for the 24 do not have the additional notch they cannot be mounted on the 36. 2 cam lenses for the 36 can however be mounted on the 24.
Apparently Tele-Xenars of a number of different focal lengths were produced in both 1 cam and 2 cam versions just to confuse things.
Hope this helps
Mark
Schneider Xenogon 2.8/35mm
Schneider Xenar 2.8/45mm
Zeiss Sonnar 2.0/50mm
Schneider Tele-Xenar 3.8/75mm
when the 36 was launched.
These lens have 2 prominent cams on the bayonet block, where as lens designed for the Royal 24 have only one. As lenses for the 24 do not have the additional notch they cannot be mounted on the 36. 2 cam lenses for the 36 can however be mounted on the 24.
Apparently Tele-Xenars of a number of different focal lengths were produced in both 1 cam and 2 cam versions just to confuse things.
Hope this helps
Mark