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.
