Need To Attach Canon EOS Lens to OSC and Include a Filter

jwaters125

I need to connect my Canon EOS “L” lenses to my ASI2600MC Pro. I would like to use ZWO’s Filter Drawer (below). It looks like I will need the EOS Lens Adapter for EFW also (below).

https://astronomy-imaging-camera.com/product/zwo-filter-drawer-m42

https://astronomy-imaging-camera.com/product/new-eos-lens-adapter-for-efw

The ASI2600 MC Pro back-focus is 17.5mm and the Filter Drawer thickness is 25.0mm. I can’t find the thickness of the EOS connector. How can I connect the necessary parts together to equal 55mm?

What parts do I need to connect the ASI camera to the EOS connector and include the ZWO Filter Drawer?

katherine.tsai

The back focus of Canon EF lens is not 55mm, it should be 44mm, the thickness of EOS-EFW is just enough if you connect it with EFW.