Monday, 3 October 2016

Pinhole Camera - 4x5, 90mm (Build Part 1)

All the pinhole cameras I currently own are ones I have bought, not built. I need to change that. I've recently become interested in woodworking, so I decided to make one out of wood.
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I cut the boards out of a solid slab of Oak I got from a local DIY store. The boards are to be screwed together, so I drilled pilot holes, and also cut the recess for the tripod mounts.
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Once I assembled the box, I cut some rails for the film holder to rest on, these were also screwed in so more pilot holes.
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I was constantly test fitting a double dark slide to make sure it was the right size.
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I needed to shim out the side to hold the double dark slide in the centre, so these were glued in place and held there with clamps whilst drying.
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I also added some brass corner protectors to make it look nice. The tiny brass screws were a PITA as brass is very soft.
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I added a horizontal spirit level and a vertical one too.
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Next came the tripod mount. There’s one for portrait format and one for landscape. Both were epoxied in place into the recess cut in the board.
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I bought a premade 0.4mm pinhole off an eBay seller.
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This part holds the pinhole in place and acts as part of the shutter too.
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This is the other part of the shutter and pivots on the brass bolt. There’s a magnet that I glued in place that works on the steel screws to keep the shutter either open or closed.
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And that’s as far as I’ve got on this camera. I started to build a second shorter focal length pinhole camera at the same time, and that one I finished first. I need to return to this one to finish it.

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