For some time I have been contemplating whether it would be possible to develop a camera that was able to utilise a shutter mechanism directly linked to light levels. The fruits of my pondering is the Mark VI Dark Activated Shutter (DAS) Time-Lapse Pinhole Camera. Using a light dependent resistor (LDR) instead of a clock, the shutter is triggered by a pre-determined light lux level. To achieve this I was fortunate enough to be introduced via the Flickr community to an amazing photographer/ inventor who drew up an electronic schematic and later built the circuit which controls the shutter. During the early testing of the Mark VI DAS Time-Lapse Pinhole Camera, which is ongoing, I have opted to use a Harman Titan 5×4 pinhole camera as the camera element.
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