I want to use 2 focal reducers in my image train, but after searching the whole net I cannot find anywhere that lets me know distances they need to be apart for optimum performance.
I want to get my FOV even wider.
Can someone please assist?
I have a 150mm f5 Refractor
an Astro-Physics 2.7" 0.75x FR
and a 1.25" 0.7x FR
What would be the optimal distance between the two FR's?
The
RED lines show the distance I need
