عدسة الثقب المحفورة مزدوجة وعدة تعريض من Firstcall

The double etching really shows in the final image—crisp edges without that mushy falloff I've gotten from other pinholes. I've already swapped it into my homemade camera and the exposed frames came out perfectly even.

The saucer-shaped depression around each pinhole made alignment so much easier on my first homemade camera build. I love how precise the managed focal length feels right out of the pack—it's saving me a ton of guesswork with exposure times.

The double etching really does its job—the saucer shape around the hole makes mounting it in my homemade camera body a breeze, no fiddling with alignment. I swapped out my old needle-poked version and the difference in image sharpness is night and day.