Pentax K-mount aperture latch for ringlight adapter by billiamthesecond 3d model
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Pentax K-mount aperture latch for ringlight adapter by billiamthesecond

Pentax K-mount aperture latch for ringlight adapter by billiamthesecond

by Thingiverse
Last crawled date: 3 years, 1 month ago
A tiny, slightly adjustable (3-position) f-stop lock for use with this reverse-mount ring light adapter.
Place the V of this part over the lens' aperture slider, then slide one of the three notches over the vertical stop for the bayonette mount on the ring light adapter. See pictures.
Note this doesn't adjust by sliding. You have to pull it out part way, and replace in a different position.

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