Leica LTM Questions about my Nikkor-S.C 50/1.4

Leica M39 screw mount bodies/lenses

venchka

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Shameless cross post for a wider audience:

Hello all!

After reading and learning a lot about my lens in the recent hood & squeak threads, I have a few questions. Before I ask my questions, my lens is in That Other Mount: LTM and mounted on a Canon VI-T body.

The aperture ring on my lens is black with white numerals. In looking at examples of the lens in the Nikon mount on eBay, the aperture ring is chrome with black numerals. Was this a Canon/Leica model vs. Nikon model thing? Or different cosmetics for different years?

The focus movement is very smooth except: somewhere between about 3' and 4' there is a slight but distinct drag. Almost a detent. Is this something that needs attention or normal?

Thanks for all your help!
 
The difference in aperture rings was purely cosmetic, but not completely a Nikon RF v. LTM thing. I believe some of the LTM 5cm/1.4 Nikkor-S's & 5cm/2 Nikkor-H's had chrome aperture rings, just like the Nikon RF mount ones (e.g., my LTM 5cm/1.4 Nikkor-S has a chrome aperture ring). However, AFAIK, none of the chrome Nikon RF mount versions of those lenses ever had black aperture rings (the black versions did, but the whole lens is black, not just the aperture ring). Rotoloni's Nikon RF book may explain why only some of the LTM lenses have the black aperture ring & what time period they were produced, but I don't have my copy in front of me.

The detent is normal & is there to let you know when you're focusing closer than the minimum focus distance on your camera.

venchka said:
Shameless cross post for a wider audience:

Hello all!

After reading and learning a lot about my lens in the recent hood & squeak threads, I have a few questions. Before I ask my questions, my lens is in That Other Mount: LTM and mounted on a Canon VI-T body.

The aperture ring on my lens is black with white numerals. In looking at examples of the lens in the Nikon mount on eBay, the aperture ring is chrome with black numerals. Was this a Canon/Leica model vs. Nikon model thing? Or different cosmetics for different years?

The focus movement is very smooth except: somewhere between about 3' and 4' there is a slight but distinct drag. Almost a detent. Is this something that needs attention or normal?

Thanks for all your help!
 
the later made Nikkor Ltm 50mm and the 35mm and probably the other focal lenght " all chrome" lenses, used the black ring with white f numbers.
I suspect that Nippon Kogaku thought that these white numbers on black are easier to see, with less glare reflecting back to the photographers eye from the lens barrel.
 
The LTM Nikkor lenses with the black painted aperture ring are later production, late 50s. Very few were made in this style. Looks very nice on a LTM or M camera.

The LTM Nikkor 5cm f1.4 is a 'close focus' lens mount. The 'bump' in the focus cam is there to let you know that the closest focus with the rangefinder has been reached, it can continued to be focused to 1.5' (18 in) but this is done in the 'old way', best set up on a tripod and with a tape measurement to the film plane. Sounds strange I know, but with some guesstamation of parallax correction it does work. If your M3 has been adjusted to focus under 1 meter or you have a later M-series, the rangefinder does couple a bit closer to about 3' just after bump, so the lens is a closer focus fast rangefinder lens than the others of the 50s/60s that were limited to about 1 meter.

Its a very beautifully built lens, one of the most solid and well finished ever. The single lens coating is actually quite effective and the image quality is very sharp and 'classic'. Compact size but a hefty solid brass mount and heavy chrome plating.
 
dreamsandart said:
The LTM Nikkor lenses with the black painted aperture ring are later production, late 50s. Very few were made in this style. Looks very nice on a LTM or M camera.

...

Its a very beautifully built lens, one of the most solid and well finished ever. The single lens coating is actually quite effective and the image quality is very sharp and 'classic'. Compact size but a hefty solid brass mount and heavy chrome plating.

I know. It's a keeper! Very few were made, eh? More reason to keep it. I remember feeling slightly bummed out that I didn't get a Canon lens when I bought the kit. Apparently I got more than I bargained for.

I'm new here. I won't post the same question all over the place in the future.
 
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