Kevin Saruwatari, Author at 35mmc

Kevin Saruwatari

A semi-retired mechanical engineer that did product development, machining and welding since the 80's. Photography and darkroom started about the same time come to think about it. Took it all serious for awhile and now prefer to laugh and make light of things I do.

Kevin Saruwatari's Posts

11 February, 2026

Pentax DA to Canon EF Adapter Hack

By Kevin Saruwatari

In December 2025, I documented a crafty little project of modifying a cheap Pentax K to Canon EF adapter so the aperture of a DA 35mm/f2.8 macro lens (no aperture ring) could be...

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