Hi All,
This is the story of my poor old DOB and DSLR images for a mosaic.
It seems a single image of the moon seems to be fine, but in truth I don't really know.
I decided a couple of nights ago to insert my 3 x barlow into the camera and then into the scope and took a series of 74 images with the DSLR.
The problem seems to be that I am unable to match the images together. Most seem to match with the exception of longest parts of the image. I have reduced the images to 2155 x 1437 in the hope to get a massive image but as I try to line them up sections on the extremes seem to be out by 20 - 30 pixels.
The images by the way have been altered by Registax prior to mosiac stitching too.
What could be the problem be (from experience):
- Mirror extremes distorting the wider parts of the image?
- Barlow distortions? ( if so damn)
- Registax distorting image after processing? (will check this out)
- Atmospherics?
I also seem to have a similar problem in the past with the CCD imaging but a lot less extreme.
Apart from Registax is there a way of isolating the issue/s?
1st image without barlow, 2nd image with barlow. I know it may be difficult to spot the difference but if you see the 25MB image it is very clear.