Fed S and NKVD: consecutive numbers!

A common Fed (serial number 114471) from 1939, but with the extra 1/1000 speed drilled in the dial too like the 76777 built the year before. (the dial is made from hardened steel, instead of brass)

Another interesting fact is that the lens thread entry is the same as the post war Fed 1f series.

Hi Milo,

Yes, it seems that many NKVD were made with the extra hole giving the 1/1000th. So, what is exactly the difference between a common NKVD and a "S"? Just a problem of regulation, perhaps?

About the lens, I am not sure to understand. Do you speak of the 39mm screw or of the internal one? The last one, I suppose?

Amitiйs. Jacques.

quote:

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Do you speak of the 39mm screw

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Yes, its where the infinity mark stops when you change lenses. Adding a speed of 1/1000 requires extra care when placing and regulating the curtains.

The screw in the shutter dial prevents the knob from selecting the fast speed. The FedS has a special selector with a cutout, which fits the screw and the fastest speed.

Thanks for the detail about the speed selector. I have often dismounted "normal" NKVD and S, but I had never paid attention to that!

About the lens, I think too of the screw between the crown (distance ring) and the lens (depth of field). Impossible to invert prewar with postwar parts, as it seems. Curious.

Amitiйs. Jacques.