Pentax Stereo adapter and focusdistance

Started Dec 29, 2013 | Discussions thread
Sailor Blue
Sailor Blue Forum Pro • Posts: 11,697
Re: Pentax Stereo adapter and focusdistance

coentje wrote:

Just another question after looking on ebay.

There are two versions of the adapter: one with a 49 mm thread and one with a 52 mm.

The 52 mm is much more expensive. Is the opening the same so there's no difference if you use an extra ring with the 49mm on a 52 mm thread lens or do you get an extra black border in your picture?


I've only seen and used the 52mm version but if you use an adapter ring you would move the optics further apart. This would raise the lowest focal length you could before you start to include the inside of the stereo adapter in the image.

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