I have purchased Pixinsight Fundamentals and am in the second section. What has yet to be explained is the meaning of 1:3, 5:1, etc, in the view window titles. Thank you for your help.
Oh... I think you are referring to the "Zoom" level. 1:1 is the fully zoomed in. 1:2 is an image that is being displayed at 50%... 1:3 is 33%... If you have a mouse with a roller wheel- you can zoom in and out and watch the ratios change.
Good catch- I am surprised I didn't mention it in passing.
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