Quote:
Originally Posted by strongmanmike
Greg this is purely an illusion of course, the detail in the image is affected exactly the same by the seeing and it is really only the choice of file size you choose to display that causes this apparent difference. When you have a wide field compared to a narrower field at the same arc sec/pix and then display them at the same file resolution the affects of the seeing on the two images will look identical.
Mike
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Well, yes...... but..... unless the sampling is adequate you can never get very high resolution images with a short focal length.
Under-sampling will easily mask any seeing blur....with images looking pretty much the same from night to night, no matter how good or bad the seeing is.
At longer FL's you end up in the over-sampled region, hence seeing makes obvious differences to star sizes and resolution.