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Originally Posted by xoxoxoBruce
Bravo, fill us in on the equipment.  |
HAHAHAHAHA!
Are you all sitting down?
The "camera" is a one quart paint can (unused) with a .040" hole drilled in one side as a pinhole. The hole is a little too big, so the image is a bit blurrier than I'd like. I'd like to find a 1/64 bit or a pal with a laser cutter...
The image is formed on "printing out paper" which is a gelatin silver paper that was common in the early days of photography. It has an excess of silver chloride and so it "prints out" from exposure to strong UV sources rather than "developing out" like modern papers. Remember studio proofs that were orange and faded? Same stuff.
The image comes out orange and brown and reversed (negative). I scanned it into p'shop and reversed the values/colors. Hence, orange-->Blue.
It is extremely slow, when used to print from a negative, exposures can range from several minutes to hours in bright sun. In the pinhole camera a one month exposure for the landscape was barely adequate.
Each day records a different arc. I've got a dozen of these and I am thinking of setting them up all over town. I'll post the images next month. I'm going to check the almanac to see when we get the best separation between the days arcs.
Originally, I thought about doing a solstice to solstice or equinox to equinox image, but I realized things might get clotted.
The wide angle effect is from the curve of the paint can.