Rangefinder focusing

Started 6 months ago | Discussions thread
LCT
LCT Senior Member • Posts: 1,210
Re: Rangefinder focusing
1

GF wrote:

David Kieltyka wrote:

The rangefinder focusing mechanism is purely opto-mechanical. No batteries needed, nor does it see "through the lens" (though the metering system does require you to remove the lens cap ).

-Dave-

Thanks Dave.

Interesting. How does the focusing system know I turn the distance ring?

Because the lens has a focus cam which translates a movement to the roller cam of the camera when you focus. Purely mechanical since the M3.
Best,
LCT

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