Author Topic: How to achieve 55mm back focus on 48mm threaded coma corrector (Read 7817 times)

Singlin · « **on:** March 19, 2014, 11:20:19 PM »

I have a 383L and Vesion 2 of the filter wheel.
I have a skywatcher f4 coma corrctor with a male 48mm thread.
How can I add spacers to achieve 55mm back focus?
Do the spacers go in front or behind the filter wheel?
Regards
Simon

MikeM · « **Reply #1 on:** March 20, 2014, 03:49:32 PM »

The spacers would go in front of the EFW2. You will need an M54->M48 adapter.

Author Topic: How to achieve 55mm back focus on 48mm threaded coma corrector (Read 7817 times)

Singlin

How to achieve 55mm back focus on 48mm threaded coma corrector

MikeM

Re: How to achieve 55mm back focus on 48mm threaded coma corrector