4x5 Camera for 75mm lens and Fotoman helical focus

thingiverse

--- 04.01.20 update ---\r\n\r\nChecked the camera's infinity focus using ground glass, and I was off by only a millimeter or so with my Nikkor 75mm 4.5 lens. The flange distance is 81.6mm. Adding a black felt or light seal foam around the film holder will put it almost in focus at infinity.\r\n\r\n- Added an M4 grip mount on the right side of the middle section.\r\n- Added a new STL, the Goodman Zone grip, but remixed for better fit. Made the mount surface flat so that it fits perfectly to the middle section. You can find the top and bottom knob at Dora Goodman's site: https://drive.google.com/drive/folders/12LFKAIpdzVwagsV6Xn_9s_RO3xCwpP2x\r\n\r\n--- 03.01.20 update ---\r\n\r\nAssembled everything, but I'm not sure if there are light leaks yet. Might have to use some camera light seal foam or felt around the film holder slot.\r\n\r\nStill waiting on a glass cutter in the mail so I can cut a ground glass.\r\n\r\n- Increased the size slightly of the M4 grip nut hole in the middle.\r\n\r\n--- 02.01.20 update ---\r\n\r\n- Updated cone and middle to v7.\r\n- Fixed minor issues with the middle section, including M3 nut holes and tripod socket size.\r\n- Made the cone easier to print with less support by making some design changes.\r\n- I now recommend printing it face down for better results. This also helps with supports not filling up tiny M2 nut holes for helical mount.\r\n\r\n--- 01.01.20 update III ---\r\n\r\n- Fixed the middle section.\r\n- Added a vertical tripod screw mount in between the optional grip place. Might add a grip on the other side, if the film holder allows it.\r\n\r\n--- 01.01.20 update II ---\r\n\r\n- Edited everything to v5.\r\n- Increased M3 hole sizes for better fit.\r\n- Increased the size of the light trap seal in the middle section slightly so that the cone light trap fits better.\r\n- Increased the dimension of the helical focus mount for easier use.\r\n- Reduced the dimension of the middle inner rectangle slightly.\r\n- Reduced the film holder slot so that it stops at the wall, not just in the light trap.\r\n- Reduced the back size accordingly.\r\n\r\n--- 01.01.20 update I ---\r\n\r\n- v4 cone 2: Changed the design of the cone to prevent vignetting in the corner. Made it more box-like for better results and faster printing with less support. I recommend printing it face up so that support is inside the cone.\r\n\r\n--- 31.12.19 update ---\r\n\r\n- Fixed issues with the cone and middle section, then uploaded new STLs, v4.\r\n- Split it into singular files for easier printing.\r\n- Added a hotshoe mount (M3 nuts and bolts) and simple hotshoe, might be a bit shallow.\r\n- Added grip mount (M4 nuts and bolts), should fit the Goodman Zone camera grip.\r\n- Added 3/8" screw tripod mount under middle section.\r\n\r\n--- --- --- --- --- --- ---\r\n\r\nInspired by Morten Kolve's "Will Travel 4x5 camera," I decided to design my own, since I had a 75mm lens and fotoman helica focus to use.\r\n\r\nThis is a work in progress. I uploaded the 123D design save files so others can remix or improve upon it.\r\n\r\nThe idea behind the holes in the back and middle are for bungie cord to keep the film holder in place between back and middle.\r\n\r\nWill use regular M3 nuts and bolts to hold the middle and cone together.\r\n\r\nUses M2 10mm flat head philips screws and M2 nuts for fastening the helical focus mount.\r\n\r\nI plan to use cheap picture frame glass to cut into a ground glass, then sand it. Then I'll use a cheap fresnel sheet to brighten it.