A small spontaneous weekend experiment shows once again: it is not so easy to photograph a night sky / a starry sky by long time exposure. The longer the exposure time, the more details can be seen – but from about 30 seconds on, the movement of the stars or the rotation of the earth can be seen. With higher ISO I could shorten the exposure time to 2-3-4 seconds, but the digital ‘dirt’ increases.
The other day while washing dishes found these beautiful circles of confusion and immediately times made a photo. The term “circles of confusion” or the English term “Circles of Confusion” is already for quite a long time a favorite term – and a multi-layered play on words around the photography, circles of friends, origin, etc..
Yes, I know – the photo doesn’t actually show circles, but bubbles. Circles are two-dimensional, bubbles are three-dimensional. But the illustration, the photo is two-dimensional and shows the perpendicular parallel projection of the bubbles in the plane: circles.
In photography, of course, ‘real’ circles of dispersion look a little different.