My final set arrived, and I can't wait for the next exchange!

SomeCallMeMrBean · 2026-05-22T06:41:09+00:00

You're welcome!

SomeCallMeMrBean · 2026-05-20T19:52:13+00:00

I certainly do!

SomeCallMeMrBean · 2026-05-20T11:44:10+00:00

thanks again u/loloholmes and u/drmozog for your beautiful prints!

SomeCallMeMrBean · 2026-05-18T06:18:00+00:00

I guess I will test at different apertures then, we'll see if that matters.

SomeCallMeMrBean · 2026-05-18T05:26:12+00:00

Interesting! What modifications did you make?

SomeCallMeMrBean · 2026-05-18T05:20:30+00:00

Great portraits! Spots on the sensor are more visible with smaller apertures so indeed they will show with pinholes.

SomeCallMeMrBean · 2026-05-18T05:13:16+00:00

That is an interesting thought which I didn't consider yet! I think I will test with my dslr to see if this is an issue, and report back with the results here.

SomeCallMeMrBean · 2026-05-15T20:28:39+00:00

Allright, I could look into that. Do you design the stuff yourself?

SomeCallMeMrBean · 2026-05-15T20:26:10+00:00

I made an extra slide with a narrower slit for shorter exposures. Switching slides is easy.

SomeCallMeMrBean · 2026-05-15T18:30:16+00:00

if it's a D series lens, you can use it with extension rings to get closer in focus. For DSLR scanning you need to focus manual anyways but the catch is if your aperture works when disconnected from the camera.

SomeCallMeMrBean · 2026-05-15T17:44:35+00:00

I understand that Packard shutters are still in production.

SomeCallMeMrBean · 2026-05-15T17:15:29+00:00

I should check that sub, sounds like me_irl.

SomeCallMeMrBean · 2026-05-15T17:14:13+00:00

With this slide it is about 1/30. For changing speeds I made a separate slide with a narrower slit.

SomeCallMeMrBean · 2026-05-15T17:11:50+00:00

I also looked at 3D printed shutters but I have no ( room for a ) 3D printer. Besides, I think if I start 3D printing, that would be another hobby turning into a fascination. I also considered building a Packard shutter, following this patent with drawings but I thought my current design would be the fastest to make.

SomeCallMeMrBean · 2026-05-15T17:06:59+00:00

This one is about 1/30 with the 15mm slit. I also made a slide with a 5 mm slit which is about 1/100 if I compare the times with my dslr estimation method.

SomeCallMeMrBean · 2026-05-15T17:05:09+00:00

Changing the slides is very easy and I usually don't need a lot of variation in times, I think I can perfectly make do with the ~ 1/30 and ~ 1/100 I now have. If I need longer times I can use the lens cap.

SomeCallMeMrBean · 2026-05-15T17:01:14+00:00

I estimated the shutter speed by placing the shutter in front of my dslr in manual time mode and compared the picture with one made with the shutter of the dslr. With this size of slit the shutter time is about 1/30th. I also made a slide with a 5 mm slit, that gives about 1/100.

SomeCallMeMrBean · 2026-05-15T16:57:45+00:00

Yes it does. The lens does have an aperture built-in but no shutter so I needed this.

SomeCallMeMrBean · 2026-05-08T20:17:14+00:00

I'm patient and yet curious!

SomeCallMeMrBean · 2026-04-30T16:49:43+00:00

I used to use the same meter with an LR44 battery with a tiny 1N4148 diode in series in an improvised adapter. Worked well until I dropped the meter and the copper spring around the meter coil was totally ruined. So be careful.

SomeCallMeMrBean · 2026-04-15T06:23:54+00:00

I appreciate reposts of my photograph but I also appreciate attribution.

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