M42 screw mount adaptor

Started Jan 12, 2013 | Questions thread
captura
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Re: M42 screw mount adaptor
In reply to hindesite, Jan 14, 2013

hindesite wrote:

The Rainbow Imaging adapter may not the the correct one for your lenses.

The are several things to watch for.

Some adapters have no step inside the m42 thread. These will work with lenses that are fully manual (usually have a preset ring adjacent to the aperture ring) or with lenses which have a switch that switches the lens from "auto" to "manual" if you can set the switch to manual.

Many adapters have a ledge or flange inside the m42 thread, this depresses the pin that actuates the aperture on some lenses. If your lenses are auto, have the pin to close the aperture and do not have a switch, you will need one of these adapters.

Some lenses (some Takumar, for example) have additional pins and other features on the rear surface of the mount, and if the internal flange is too wide, it may interfere with the operation of the lens or prevent it seating and achieving infinity focus.

It's common to shorten those pins with a dremel tool or something.

Here's a tilt-shift adapter for m42 to m43 which might be interesting...

http://www.ebay.ca/itm/TILT-8-M42-Mount-Lens-To-Micro-4-3-m43-Adapter-For-GX1-GF5-G5-GF3-EPM1-EP3-EPL5-/290841980738?pt=US_Lens_Adapters_Mounts_Tubes&hash=item43b7886f42

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