Quote:
Originally Posted by lazjen
Thanks JA. The issue seems to be everywhere.  Looking more objectively, it seems to be Left and Right sides, not Top Middle or Bottom Middle. The "bars" seem to form a circle pattern around the image, with the corners sloping, and the left/right side vertical.
As for testing, I'm going to change 1 thing at a time (if possible) to eliminate the issue. I can see the effect on all the filters I've used so far (I went back and looked at L and SII images I took that night), but I have an empty slot in the filter wheel, so my first test will be to do an image through it. I'm going to wait for night skies as I know exactly what I'll be looking for in the stars and I need to look at the whole image.
And after the filter wheel test, I'll remove the FR (leaving everything else the same). From there I've got a few extra tests to do until the final one which is camera and scope only (no FW, FR, OAG - just the minimum connector to join. |
Sounds like a plan
It's not apparent in top middle and bottom middle because the vertical dimension isn't as long as the horizontal. The corners are usually worst because they are the farthest from the field centre.
Still doesn't detract from the image at normal viewing size