Category : Lab activity

Written on Mar, 19, 2025 by in

Counters are an important control tool on an optical printer because you might want to flash a tiny spark into frame 39 or run a double exposure for frames 1138 – 2025 only. Or just keep track of how much footage you have printed. After quite a bit of trial and error (as always) I’ve landed on a certain type …

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Written on Feb, 21, 2025 by in

TABLE WITH PRINTING TIMES FOR 16MM. This is for the optical printer, speeds are set manually on the machine     16MM FT 1 fps 2 fps 3 fps 4 fps 100 66 min 33 min 22 min 16 min 400 4.5 hrs 2.2 hrs 88 min 66 min 1000 11 hrs 5.5 hrs 3.7 hrs 2.7 hrs 2000 22 …

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Written on Jan, 15, 2025 by in

Here is some more Information for anyone who might be considering the 1 day optical printing workshops that I am running. These day workshops are aimed at anyone who wants to have some hands on experience with an optical printer. We will be doing a variety of activities including viewing and selecting material on a manual examination table as well …

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Written on Dec, 05, 2024 by in

My question is this: RE Bolex RX H16 If you want to mount your camera on a tripod or other device and you want it to pan around the optical axis you will find that the mounting holes on the flat base are NOT on this axis. This may not be anykind of issue for people but for me its …

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  OPTICAL PRINTER OPERATIONS: The printer has gates for super 16mm and standard 16mm. Also it has 35mm gates. This means it can be set up for 16mm > 16mm copying, duplicating, positive from negative, 35mm > 16mm reduction copying, duping or printing to positive, 16mm to 35mm copying, duping, internegatives and positive blowups and 35mm > 35mm all of …

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Written on Oct, 20, 2024 by in

Last thing to fix before getting on and shooting tests is the take up power suplies for the 120V/AC motors. Budget restraint means I’m using cheap electronic transformer/variac but it seems to work. Ideally I’d like to design somekind of clockwork mech for the mag film tensions because its hard to make this camera portable with a 120 volt supply. …

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Written on Oct, 20, 2024 by in

Finally fitted this nice perspex door for the projector head on the printer. Will keep things nice and clean and protected over the coming busy months.

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Written on Oct, 16, 2024 by in , ,

Here is a brief plan guide to the graphic optical camera I am building. In simplest terms it is a rostrum camera pointing down at an area for flat art work. If the correct camera gate, in this case a full 35mm gate, is placed in the camera then the area below to be photographed INCLUDES the area occupied by …

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Written on Oct, 14, 2024 by in

Platter cinema system tables are big pieces of aluminium with curved sides mounted on rigid spokes and a decent bearing. I’ve had them kicking around for years and they started forming ideas when I was thinking about how to employ them creatively. So I’ve got around to mouting a vertical one against black. Next will be some maths and geometry …

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Written on Oct, 14, 2024 by in

An oxberry optical printer and rostrum stand often use very similar cameras infact there is very little difference between them.                     An optical printer images the target upside down in the gate so you thread it in the projector the right way up. This helps you see what you are shooting. …

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