C/CS-mount to Canon EF lens adapter for RPI HQ cam

thingiverse

This is a adapter to mount Canon EF lenses to C-mount cameras like the new Raspberry pi HD cam. The design includes holes for pogo pin connectors so the focus and aperturecan be controlled electronically (e.g. for autofocus). It includes the FreeCAD files for adaptions. There are different versions: One for CS mount (extends the flange focal distance by 31.5 mm, from 12.5 (CS) to 44 mm (Canon EF)) and two for C-mount (17,526mm flange distance), one with and one without connectors. For the raspberrypi cam I'd recommend the C-mount with the adapter ring. The connector holes are designed to fit 2 mm pogo pin connectors like the one in the image (my where branded Yibuy). I did not test the electronic lens control yet, but the connectors seem to make good contact. The shaft is 1.5mm (not 1.2 like stated in the image), so you probably need a 1.5 mm drill to widen the holes (at least on my printer). The electronics part is spared for later. I added a photo and a video from the moon, taken on Jul 3rd from Berlin with the Canon telezoom you see on the images and the raspberry pi HD cam. The parameters were: raspistill --shutter 8000 --ISO 100 -t 20000 -st -o moon.jpg The long preview was to find the moon. raspivid -o moon.h264 -t 10000 --shutter 8000 --ISO 100 In the video you can see how fast the moon moves.