Controlling cameras
Camera Control Focus and Shutter
https://www.bhphotovideo.com/c/buy/shutter-releases/ci/27979/N/3777857689
https://www.bhphotovideo.com/c/product/766338-REG/Vello_RS_P1II_RS_P1II_Wired_Remote_Switch.html
Panasonic: DC-S1R, DC-S1, DMC-GH5S, DMC-GH5, DMC-GH4, DMC-GH3,
DMC-GH2, DMC-GH1, DMC-G9, DMC-G8, DMC-G7, DMC-G6, DMC-G5, DMC-G3,
DMC-G2, DMC-G85, DMC-G10, DMC-G1, DMC-GX8, DMC-GX7, DMC-GX1, DMC-L10,
DMC-L1, DMC-GF1, DMC-FZ2500, DMC-FZ1000, DMC-FZ300, DMC-FZ200,
DMC-FZ150, DMC-FZ100
Leica: V-Lux 4