Thingiverse
SLR Lens eyepiece adapter (Pentax-PK)
by microstrat
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https://youtu.be/pPMKM2yOqcY
Convert your old PK mount lenses into a powerful telescope.
Fits 1.25" (31.7mm) eyepieces.
The magnification should be the lens focal length divided by eyepiece, for example:
A 200mm lens with a 4mm eyepiece should give 200mm/4mm = x50 magnification.
Have fun !
Convert your old PK mount lenses into a powerful telescope.
Fits 1.25" (31.7mm) eyepieces.
The magnification should be the lens focal length divided by eyepiece, for example:
A 200mm lens with a 4mm eyepiece should give 200mm/4mm = x50 magnification.
Have fun !
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