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Photography Circuits
Last Updated on:
Monday, November 22, 2021 02:42 PM |
| Circuits Designed
by Dave Johnson, P.E. : |
| Cheap Close-Up Camera Lens - I often use my digital camera to take photos of some electronic projects. At times, I need to get in close to capture some details. But, without some additional optics, my camera just could not maintain focus, as I received closer to an object. Being a cheap . . . Hobby Circuit designed by Dave Johnson P.E.-January, 2012 Timer for Darkroom Camera Shutter - This circuit was designed to control a film exposure shutter for a darkroom. It has 8 time steps ranging from 0.35 seconds to 4 seconds. It is activated by a foot switch and draws power from an external 12-volt DC supply . . . Hobby Circuit designed by David Johnson P.E.-June, 2000 |
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Links to electronic circuits, electronic schematics and designs for engineers, hobbyists, students & inventors:
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Casio QV-200 Digital Camera Cable. - Lose your cable? Build it yourself
and save $29. Fits many QV models. ___ Cheap Close-Up Camera Lens - I often use my digital camera to take photos of some electronic projects. At times, I need to get in close to capture some details. But, without some additional optics, my camera just could not maintain focus, as I received closer to an object. Being a cheap . . . Hobby Circuit designed by Dave Johnson P.E.-January, 2012
Timer for Darkroom Camera Shutter - This circuit was designed to control a film exposure shutter for a darkroom. It has 8 time steps ranging from 0.35 seconds to 4 seconds. It is activated by a foot switch and draws power from an external 12-volt DC supply . . . Hobby Circuit designed by David Johnson P.E.-June, 2000 |
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Lightning Activated Camera Shutter Trigger - This circuit is used to
trigger a camera's electronic shutter circuit when a flash of lightning is
present. This circuit would also work for photographing fireworks displays
or other events involving flashes of light. . . .Designed by G. Forrest Cook |
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