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Accessing helicoid in 1939 Elmar 9cm?
Old 1 Week Ago   #1
mystichobo
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Accessing helicoid in 1939 Elmar 9cm?

Hi guys!

How do I access the helicoid for relubricating on an '39 Elmar 9cm? I've tried the stuff mentioned in the image with no luck; I'm wondering if maybe I need to remove the silver mount part but I'm not so sure, and really don't want to force it.

The lens works fine, optically it's beautiful even though there's a tonne of wear on the outside, but it's making a bit of a rasping sound when focusing, which indicates to me that it's probably metal on metal somewhere, and I'd like to fix that before something internally gets worn down.

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