This is from my 2019 calender either the March or the September page. This Droste type reprojection was generated from a spherical panorama I took in the center of the entrance to Munich’s old south cemetery.
The Alter Südfriedhof is an old Munich cemetary. Dead bodies have been burried here between 1563 and 1943. Nowadays it serves as a quiet sanctuary in the busy city centre. The panorama shows the entrance between the older and the newer part of the cemetary.
This article presents a solution to the problem that the IR shutter mode of the Sony NEX 5 can't be combined with other shutter modes like bracketing. An arduino board with a servo is used to release the camera via the normal shutter button.