orion 15 on M8?

[Firefly]

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Has anyone here tried using a Russian orion 15 28mm lens on a M8, or M8.2 for that matter?

Bearing in mind its slow maximum aperture I was wondering if it's dof made up for any focusing issues and would it be advisable to use one of the cheapo 6-bit adapter rings available or can it be mounted and used with a normal adapter ring?

many thanks Rob

[pop]

"Using" would be overstating it, but I do own one. Here's a test shot taken with an M (Typ 240) from a distance of about 1m, 1:6, manually focused on the "0" (using the RF, of course). I have taken three shots and re-focused each time. There's no marked difference between the shots, so I show just one. This is just the central part of the image at 100%. The adapter ring is uncoded; it's just a generic 28/90mm LTM to M adapter.

 

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Edited December 6, 2014 by pop

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[Alberti]

now you can code it as Summaron 28mm.

Handles the small vignetting on my M240 and I can't say it improves the already absence of purple fringing

[farnz]

Did you know that you've picked up a thread that's been dead for 6 years, Albert?

Pete.