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Nice article, and impressive sample pictures. Now I want someone to write an article about a low-cost sensor that I could use to turn this into a digital pin-ho
by herodotus 8y ago
Nice article, and impressive sample pictures. Now I want someone to write an article about a low-cost sensor that I could use to turn this into a digital pin-hole camera!
- brudgers 8y agoWith an interchangeable lens camera, a lens cap with a hole drilled in the center is a cheap approach. There are "precision" pre-drilled lens caps available for purchase. Machining provides a potentially wider angle of view, but with a digital sensor this isnt likely to be as much of an issue as with film...even at the high end, medium format digital backs currently top out at 645 format while 6x17 is not unusual for 120 film systems.
- th0ma5 8y agoSorry to give you homework but do you have any links? Or maybe someone else does?
- jdietrich 8y agohttps://petapixel.com/2018/01/22/make-diy-pinhole-lens-camera-body-cap-1-minute-guide/ https://petapixel.com/2018/01/22/make-diy-pinhole-lens-camer... https://www.ebay.com/itm/Holga-Pinhole-Lens-Cap-for-Canon-EOS-EF-Camera-650D-5D-III-600D-60D-1100D-Grey/182424701594 https://www.ebay.com/itm/Holga-Pinhole-Lens-Cap-for-Canon-EO...
- Finnucane 8y agoIt's not difficult. You need a camera and a pinhole. With my Speed Graphic, I tape some tinfoil over a lensboard and poke a hole in it with a pin. If you know roughly the size of the hole you can make a good enough estimate of the exposure time. Then it's basically point and shoot.
- herodotus 8y agoI was think more about buying a sensor and an arduino....
- ghaff 8y agoThis post [1] describes how to use the electronics in a webcam. But you're essentially just replacing the webcam's lens with a pinhole. What you're basically asking is how to build a webcam from components. Which I assume is possible but non-trivial. [1] https://shutterhub.org.uk/how-to-build-a-digital-pinhole-camera-with-daniel-berrange/ https://shutterhub.org.uk/how-to-build-a-digital-pinhole-cam...
- brudgers 8y agoWhen I looked, most parts-house available sensors are small and even a 1" format sensors are pretty dear. MFT, APS-C, etc. were a multiple of a complete entry level interchangeable lens camera. For a pinhole camera with a small sensor, it's going to be hard to frame a specific subject because the sensor's field of view is tiny. Even a wire viewfinder will probably struggle with framing due to parallax. Basically the low cost sensor for pinhole photography is photo-chemical film. A hacky alternative for a might be modifying a flatbed scanner. Just step the photo array slowly enough that there's reasonable exposure at each point. The good part is that a flatbed scanner is a stupid big sensor and there is some literature for hacking them. But for a pinhole, I'd expect the exposures to be rather long even for pinhole photography.
- brudgers 8y agoWith a digital camera, a person could go out in bright sunlight, play with ISO and/or shutter speed, then calculate fstop using Sunny 16 and looking at histograms.
- JKCalhoun 8y agoOr a scanner: http://dwarmstr.blogspot.com/2011/02/adventures-in-large-format-digital.html http://dwarmstr.blogspot.com/2011/02/adventures-in-large-for...