Hi.
I use ASA N10 and 3" wynne corrector with QSI683wsg camera.
And I use astrodon 31mm filters. and adapter made by ASA for qsi683wsg.
When I took a picture with above system, there is vignetting on each corner.
I wonder that where the vignetting came from. Is it just vignetting or interference of ray path with adapter??
Here I attached raw image file (R channel, 300sec exp. 2bin), please some one analysis it
Thank you for advance.
m3 -001r.fit