Pinhole Photography Day 2025 is on Sunday, April 27, 2025: Do pinhole box pictures get over or under exposed on sunny days? (photography)?

Sunday, April 27, 2025 is Pinhole Photography Day 2025. Pinholes‎ Standard and Custom Sizes Ranging From 0.5um to 1000um

Pinhole Photography day was produced to celebrate the skill of pinhole photography. At a time of continuously growing photography, Pinhole photography day celebrate the standard pinhole camera. Regardless of whether you own or make your own make certain that share you photos.

If used by someone who knows what they are doing, then the answer is neither!

The exposure time would have to be adjusted according to intensity of light.

On a bright sunny day, the exposure time will be reduced.

On a dull day, it will be increased.

PINHOLE BOX PICTURE QUESTION? (Photography)?

I do not understand WHY you make a 24 second exposure. Unless, it is a REAL pinhole camera? If your picture turns out overexposed, you reduce the amount of light, or use a shorter time, or both. A long time ago, when I was 8 years old and in Cub Scouts, my dad and I made a shoebox pinhole camera. We uses a piece of thin brass used for shims in bearings and made the tiniest of holes possible. The brass went in one end of the shoebox, covered with a flap of black electrical tape. In the other end we put a 4x6 inch piece of black and white sheet film (my dad had a Speed Graphic which used 4x6 inch sheet film), with a film speed of ASA 32. In a standard camera, the typical exposure was 1/60th of a second at f5.6. We started with an exposure time of 1 minute, which turned out to not be long enough. Through trial and error, we finally settled on 30 minutes for the best exposure at noon on a sunny day. We were making negatives, by the way, so the latitude of exposure was quite wide, because you can compensate during printing. So, in your case, since you are overexposed, you need less light, less time or both, or as an alternative a slower film speed. You might consider all of the above. My results came about with the tiniest pinhole possible, which you can do with brass, but not with aluminum foil, and a very SLOW film. You do not take snapshots with a pinhole camera, you take landscapes. Any moving object will be a blur, if anything. In my 30 minute exposures, cars on the highway 100 feet away never showed up. The brass used was several sheets 0.001" thick, with curved edges which stacked and the hole was what was left, which worked like the leaves do in the aperture setting of any regular camera. It was not a single sheet of brass with a tiny hole, but rather a bigger hole in the shoebox, which was blocked partially by each sheet layered one on top of another which became the pinhole. The brass originally dated back to the early days of Ford. The main and connecting rod bearings in the engine were adjusted by placing the brass in the bearing cap to adjust the bearing clearance for oil. You might be able to find brass sheets at an art and craft store. You MIGHT be able to get away with a heavy aluminum foil or a flattened piece of an aluminum soda can. Use a sharpened pin to poke a hole, and then examine the edges of the hole. You need a round hole, and the pin is likely to tear the metal leaving ragged edges, which make the picture fuzzy. Use a magnifying glass and the pin to "trim" the edges to make the hole as small and as round as possible.

Pinhole photography inside? Exposure times?

If you have enough paper, shred the paper into strips and make test strips. This is going to be a pain, but will be the most accurate way for you to find out how long you'll need to expose exactly. Also, is it fiber based (FB) paper or Resin Coated (RC)? RC paper has a tremendously higher sensitivity than fiber paper with any exposure. If you had the ability and made a slider for the paper, as well as having a cover for the pinhole, you can slide the cover a certain length at certain intervals to try to find a good time. I would go every 45 second to a minute. Also, don't do it in a dark room, you'll smack yourself trying to perfect it.