This is the first time I have created a downsized image for posting on a website such as this where the file size is limited to 200 kB and I clearly have a lot to learn. When I looked at the posted image I was embarrased and wished I could delete it and start again. The original 49.5 MB tiff file has pinpoint stars and none of the compression artifacts obvious in the posting. What I did using Photoshop was to reduce the file size to 800 x 600 (approx), set the resolution to 144 pixels/inch then saved as a jpg file, which I compressed until it was well under the 200 kB limit. Can others suggest what I should have done? Maybe I should have another go and re-post before I post any other images.
I note that I did not mention the imager I used. It was an STL 11000M.
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