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/diy/ - Do It Yourself

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>> No.1719366 [View]
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1719366

>>1719355
It depends on the size required. Those invasive pinhole caps, with short focal length, require very tiny holes. That one has a pinhole diameter of 0.1708mm which is about 0.018mm from the optimal size for the focal length it is set at. For such a tiny pinhole, I stick a needle into some metal flashing or aluminum foil, only barely pricking the metal. I make a dozen pin pricks then sand off the back side and blow out the dust. Then I use a super macro lens to photograph them and measure them pixel by pixel.

For larger pinholes like 0.3mm I can simply use a drill bit. I actually have drills for 0.1mm and 0.2mm, but they are so effing tiny that they usually ship here pre-broken. lol

>>1719360
I think you are not grasping what is going on.

>> No.1407623 [View]
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1407623

>>1407621
For my larger lenses I use this style of paper aperture attachment. This paper aperture differs from almost all my other ones (not yet photographed) in that I can use that little tab on the top to rotate the disc. The two pieces of cardstock have the same pattern of holes punched in it. As the disc rotates across the stationary one it creates "randomized" F-stops and bokeh.

>>1407622
Nah, I'm the "dream" anon, from:

https://yuki.la/p/3210596
>>>/p/3301192
https://archive.nyafuu.org/p/thread/3254502/
>>>/p/3275873

...And, a few other threads I can't remember the names of. I don't need to trip.

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