VinceC
Veteran
>>Is there an easy way to tell an S mount from a LTM on a Nikkor?<<
The LTM uses threads and the S-mount doesn't. S-mount lenses work the same as Kiev cameras and lenses, which are plentifully pictured here and elsewhere.
An S-mount 50mm (5cm) lens is quite small because it has no focus helical -- that's built into the camera, so it just has a narrow bayonet mount. You can tell it very quickly because it has a metal tab about 3mm square sticking out of the side of the lens toward the rear. This is to lock it in place.
Other S-mount focal lengths use an outer bayonet. So their rear collar is much wider than an LTM. They also have a very noticeable locking latch -- a 1 cm-square spring loaded chrome lever on the rear base of the lens at the 3 oclock position (when viewed from the front) which locks the lens into place on the camera.
The LTM uses threads and the S-mount doesn't. S-mount lenses work the same as Kiev cameras and lenses, which are plentifully pictured here and elsewhere.
An S-mount 50mm (5cm) lens is quite small because it has no focus helical -- that's built into the camera, so it just has a narrow bayonet mount. You can tell it very quickly because it has a metal tab about 3mm square sticking out of the side of the lens toward the rear. This is to lock it in place.
Other S-mount focal lengths use an outer bayonet. So their rear collar is much wider than an LTM. They also have a very noticeable locking latch -- a 1 cm-square spring loaded chrome lever on the rear base of the lens at the 3 oclock position (when viewed from the front) which locks the lens into place on the camera.
laptoprob
back to basics
Paxette mount
Paxette mount
If I remember correctly Raid, the Paxette body is thicker than a Leica. Somewhere 40mm I think. So the Paxette lens on a Leica will not reach close focus and maybe not even infinity, but definetly not with a correctly coupled rangefinder. I doubt the 'throw' of a Paxette mount is identical to a Leica mount: the cam travel from close focus to infinity, I don't think so. All this means other helicals, quite an operation!
Rob
Paxette mount
raid amin said:
If I remember correctly Raid, the Paxette body is thicker than a Leica. Somewhere 40mm I think. So the Paxette lens on a Leica will not reach close focus and maybe not even infinity, but definetly not with a correctly coupled rangefinder. I doubt the 'throw' of a Paxette mount is identical to a Leica mount: the cam travel from close focus to infinity, I don't think so. All this means other helicals, quite an operation!
Rob
VinceC
Veteran
Also, for spotting an LTM lens on ebay and elsewhere:
The 50mm LTM lenses will be cylindrical ... about the same diameter in front as in back. Kiev/Nikon/Contax-mount lenses will be fatter in front and narrower in back.
Also, the LTM 50mm will have depth-of-field markings on the base (and most will have a visible LTM lock -- at least, I think that's what that round protusion is at about the 4-oclock position). On a Nikon/Contax/Kiev, the depth-of-field markings for a 50mm lens are on the camera body itself.
The 50mm LTM lenses will be cylindrical ... about the same diameter in front as in back. Kiev/Nikon/Contax-mount lenses will be fatter in front and narrower in back.
Also, the LTM 50mm will have depth-of-field markings on the base (and most will have a visible LTM lock -- at least, I think that's what that round protusion is at about the 4-oclock position). On a Nikon/Contax/Kiev, the depth-of-field markings for a 50mm lens are on the camera body itself.
