ASI071 Pro with OAG + EOS lens?

vincent

I would like to use my ASI071 Pro with the ZWO off axis guider and a Canon EOS lens but I am not sure if that is possible and still have the lens come into focus as the EOS T2 I have seems too long when coupled with the OAG. If possible, what combination of parts would I need to achieve focus? Also, I need to put a UV/IR filter in the EOS adapter.

Thanks,

Vincent

katherine.tsai

Hi Vincent,

It will be too long to add the OAG.

vincent

What about with the Short EOS adapter that is used with a filter wheel? Or does that only fit onto the FW and not onto the ASI071?

Thanks, Vincent

chuckwagon

Still too long. The EF lens back focus is 44mm. You will need a short T2 to EF adapter, and then calculate an appropriate spacer arrangement with your OAG to meet the 44mm spec.

vincent

Thanks. I'll keep working on it. Would be really nice to have that AOG on there as its much more elegant that a guide scope. Or get a 5 arc/sec PE mount and not worry about guiding a 200mm lens. :

Support@ZWO

You are welcome, good luck!