|
Ray. That is either horizontal banding, fixed pattern noise and just a function of your sensor operation or the result of stacking low SNR images without dithering (or both) - particularly DSLR images. Explanation is complex, so suffice to say that dithering will most likely fix this. If you can move your mount in RA or DEC between images with your hand controller without the image going outside FOV and repeat between images - random is OK - I think you will see an improvement.
|