CCTV Board to 1.25" Telescope Adapter

thingiverse

This adapter lets you connect any standard CCTV camera module with an M12 lens holder to a 1.25-inch telescope focuser using the two D=2mm drill holes spaced 20 mm apart. I had an Aptina MI5100 sensor board that I primarily use in my self-made digital microscope for DIY PCB inspection, and I wanted to try it out on my 6-inch telescope for astrophoto. Conclusion - don't buy this module. The quantum efficiency is poor, and the control API is also not great. The images from this module are much too dark: https://www.ebay.com/itm/5-0MP-mini-CCTV-board-usb-camera-module-2592x1944-1-2-5-Aptina-MI5100-CMOS/183824130476 You'd be better off saving money on a specially designed USB astrophoto sensor or DSLR camera. But if you're like me, with a telescope and some CMOS/CCD CCTV board sensors lying around, this adapter is here to make your life easier.