Hi all.
I have tested the new Orion field flattener for short refractors last night and it performs very well.
It needs 55mm of distance from the imaging chip and that was easy because i could just screw it on my QHY filter wheel (will make approx 55mm from the imaging chip of the QHY9).
First pic a crop of the left hand side top without the flattener and second pic the same crop but now with the flattener.
Judge for yourselfs and for $149 it is not bad at all
PS: pics are processed roughly
