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20190602 angle sight adapter (1)


DIY adapter for vintage right angle finder

First tried duck tape but it wasn't stable.

So I sawed a section of thick PVC tube which inside is a bit larger than 1", then
drilled 2 x 2 holes along, each pair separated by 120° approximately, and
finally threaded them.

Now one side is assembled to the angle finder, and I can assemble the other
side to:
* my polar finder for my EQ mount
* my 2 scope finders, 6x30 for the MAK and 9x50 for 130PDS.

PS: the angle finder is from Asahi Pentax and has proven of very good
optical quality; The effective FoV is about the same as the original finder I
assemble it on.




© Fabien COUTANT

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Photo Information

  • Focal Length 82 mm
  • Exposure Time 1/40
  • f Aperture f/4.8
  • ISO Speed 3200

Recommended Comments

Hi Rotatux,

do you just mount that straight onto the focusing eyepiece of your finders or do you have to remove the eyepiece from the finder first?


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This kind of optics is designed to be mounted where an eye would go (initially, a reflex camera's finder). So it's straight onto the focusing eyepiece of my finders.

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