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  1. Replies
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    Re: post your trees!

    Taken with a Polaroid model 100 using Litho film.

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    Re: Contest.... Lightest LF Carry

    Polaroid model 250 with 4x5 back and 3D printed double sided film holder: 861g
    Voyager heavy duty #10 tripod: 1010g

    Since it's a point and shoot rangefinder, a ground glass is optional. Manual...
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    Re: 3D printed 8x10 film holder

    I'll look into garolite--where do you buy it in this format? And I like the way the corners go together--with overlapping joints. And the pictures you posted are a film holder? Or plate holder? I...
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    Re: 3D printed 8x10 film holder

    This isn't a plate holder--but getting the film out is an issue. I normally use a plastic spatula like tool to ease the film up so I can grab it, but I'll look at those finger notches--sounds like a...
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    Re: 3D printed 8x10 film holder

    I would use either tin or aluminum, or thicker folio vinyl if you can find it.
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    Re: 3D printed 8x10 film holder

    Wow! that's pretty expensive. It does take almost 1/2Kg of filament, and it ties up a printer for a long time. I was thinking this could be economical, but $227 could go toward a few used 8x10 film...
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    Re: 3D printed 8x10 film holder

    So yes, they are designed to print vertically. I'm not sure what you mean by finger recess...

    Yeah, dark slides are tricky. I haven't printed one of these yet, so I'm note sure what I would use...
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    3D printed 8x10 film holder

    I've been on a roll designing film holders for 4x5 and 5x7 that can be 3d printed. I think the most difficult challenge is what I refer to as the pressure plate, which puts pressure onto the dark...
  9. Re: DIY shutter-speed tester: Informed opinions?

    I adapted a shutter tester on GitHub to work autonomously (instead of requiring a computer) using existing code and it seems to work accurately at least until 1/250, though I did get measurements of...
  10. Re: Where do you get your chemicals? Here's what I do.

    It can be a challenge to find chemicals in Canada, but FLICFILM (Longview Alberta) manufactures lots of photo chemicals and distributes them at The Camera Store in Calgary. They even make CD-3!

    If...
  11. Re: My DIY camera backpack for Calumet CC401 4x5 camera part 1

    I like this idea. I was thinking a backpack designed for carrying a child could be adapted to do this. I have a 17 lb 8x10 camera I want to lug around...
  12. Re: Servo controlled large format 3d printed leaf shutter

    Here's what I wrote up on my Instagram (@hackaninstant):

    Need an inexpensive large format shutter for your lens? Here's one you can build yourself for around $10CDN. All of the resources to build...
  13. Re: "Dark box" idea for adaptation to changing bag?

    I like the idea--it's portable, and looks inexpensive. I made a dark box out of black foam board with 2 arm holes and a sliding door that has light seals (180 degree turns), but it isn't portable. It...
  14. Re: Servo controlled large format 3d printed leaf shutter

    Just finished designing/producing a circuit board for this project, which is posted on GitHub (link in first post). This makes it much easier to assemble the parts. I'll be designing a 3d printed box...
  15. Re: Servo controlled large format 3d printed leaf shutter

    Posted some videos on the Github project page.
  16. Re: Servo controlled large format 3d printed leaf shutter

    Yes, this would be possible in the software. Since this shutter is controlled by a servo, you can limit how many degrees the servo rotates during a shutter cycle. With this shutter, the typical value...
  17. Re: Bellows Material - might have found the answer

    The narrow/wide rib sizing is interesting. Once you determine the total rib size (from top fold to top fold), then each side size (remembering to subtract 1x the fold size from the sides), then draw...
  18. Re: Bellows Material - might have found the answer

    I just used household blackout curtain fabric. It's white, but it was what was locally available for $10/meter (in Canada). It's somewhat of a thicker fabric, but I liked how it turned out for an...
  19. Re: Servo controlled large format 3d printed leaf shutter

    I was thinking about what could be done to make this shutter design faster and here are a few ideas:

    1. Make the servo gear bigger so the servo doesn't have to spin as long to open the blades...
  20. Servo controlled large format 3d printed leaf shutter

    I made a 3d printed leaf shutter that's servo actuated and controlled by Arduino. I posted the project at https://github.com/hackaninstant/Servo-Shutter

    Fastest shutter speed is 1/8, so it's...
  21. Re: Recommended light-tight materials for camera construction?

    I made double sided 8x10 film holders, using softwood for the edges that contain the darkslide grooves (cut by table saw) and 1/2" plywood for the body, though I'm thinking 3/8" would work as well. I...
  22. Re: Plans for a Professional Grade Leaf Shutter Tester

    Wow! This looks quite comprehensive. I just built a simple laser shutter tester using an arduino and am encountering the limitations--I really like the idea of measuring the shutter speed by...
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    Re: DIY LED RGB Complete

    I love this type of innovation! I saw that video and I'm currently gathering the stuff needed to build one. Of course, every forum seems to draw naysayers who are dedicated to the status quo. But...
  24. Re: 8x10 contact prints compared to 4x5 enlargements?

    I just built an 8x10 camera out curiosity as to how much better it is than 4x5. I shoot paper negatives, which don't contact print the best, so I tried a b&w reversal, directly shooting the photo...
  25. Re: Making as much of a DIY 8x10 camera as I could

    Wow! That camera looks great! And I see what you mean with the holes. I think since I used hardwood, it can tolerate some holes, though they probably won't be as closely spaced as yours. I'll have to...
  26. Re: Making as much of a DIY 8x10 camera as I could

    I'm thinking that a modified child backpack might work. They're designed to hold up to 30 or so pounds, and the newer ones have pretty good waist and back support.
  27. Re: Making as much of a DIY 8x10 camera as I could

    I'm thinking that what I should do is get ahold of a wooden 8x10 film holder and see how it's built. I think I built mine quite differently than standard, and they were built for expediency (just...
  28. Re: Making as much of a DIY 8x10 camera as I could

    You're the second person who has suggested drilling holes. If I did this, I would likely work on the base and focusing slide since they probably contains 1/3 of the total camera weight. And I suppose...
  29. Re: Making as much of a DIY 8x10 camera as I could

    I was hoping to find a backpack somewhere-- I have a few locations I want to take this, so it needs to be designed so it won't wreck my back, or the rest of my body. The camera weighs around 6-10 lbs...
  30. Re: Images shot with Orthochromatic / Ortho Film / Litho

    I've shooting regent royal hard dot film on a Polaroid 110A converted to 4x5, then developing them in D-23. I find exposure is pretty critical, otherwise the negative is too dense or too thin. I...
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    Re: Glue used to make bellow.

    Who knew making a bellows could be so dangerous? I mean, by using spray adhesive I've apparently cut years off of my life. And apparently I'm lucky nothing exploded during its assembly.

    Really,...
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    Re: Glue used to make bellow.

    I just made a bellows and used PVA book binding glue to glue the ribs on, then used Elmer's spray adhesive to glue on the lining. With the spray adhesive, you only have 15 seconds to lay down the...
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    Re: Show us your home made camera...

    Yes, I did use blackout curtain fabric. It was inexpensive ($10CDN) and seems to work well. I did make a big mistake on it though--I wasn't aware that I needed to alternate the narrow/wide ribs...
  34. Re: Making as much of a DIY 8x10 camera as I could

    Here's the very first picture I took with this camera:

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    It was supposed to be a paper reversal but I put the paper into fixer instead of sodium sulfite for the clearing bath :p It didn't...
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    Re: Show us your home made camera...

    Here's an 8x10 camera made out of a coffee table (I did a separate post on it but thought I should add it it this one):

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    Pretty much everything was home made except for the lens elements,...
  36. Re: Making as much of a DIY 8x10 camera as I could

    I made the film holder first, then measured the film offset and built it into the ground glass offset when I made that. I've used both the ground glass and film holder on another DIY sliding box...
  37. Re: Making as much of a DIY 8x10 camera as I could

    The light trap just has felt at the opening and no, the slide can't be fully removed or light will get in. Some day I'll study a real film holder to see how it works and maybe try duplicating it....
  38. Making as much of a DIY 8x10 camera as I could

    I came across an old coffee table and picked it up for the 3/4" hardwood in it with an 8x10 field camera in mind. As I glued the body together and put the wooden pins in, I was wondering, how DIY...
  39. Re: Cameradactyl Go & Self Developing Back, Part 1

    Sounds like a great idea but point and shoots normally don't have infinity stops that are able to be modified. Even Cameradactyl's OG point and shoot 4x5 camera doesn't work with this back--you would...
  40. Re: Cameradactyl Go & Self Developing Back, Part 1

    I like this idea for field developing, though the film plane offset is problematic for point and shoot 4x5 cameras. I'm wondering how difficult it would be to design this with a dynamic film plane...
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