Solargraph

[squirmelia]

I attempted to make a solargraph following instructions. I removed the top of an empty can of cider, made a lid out of black card, stuck black gaffer tape over it, pierced the can with a pin, and put in the photographic paper. I stuck eyes on it and gave it a purple hat, so that it would look slightly less like a suspicious device.

It sat on my windowsill, from 4th January to 4th July.

Today I removed it and scanned it.

In conclusion, I think I need to use a scanner with higher DPI, and perhaps put a camera somewhere more interesting, but at least in the picture you can see the sun's arc. It didn't seem to capture that much detail, so that's something also that I can improve on.

Comments

[blue-mai.livejournal.com]

not too small otherwise diffraction makes it fuzzier again. you can find a formula for the optimum size hole for a given depth between hole and paper. it's not too small if using can-sized things..