Great images, I particularly like NGC6559.
Unfortunately a single scope is not ideal for all images so getting
high resolution out of a 5 inch APO for galaxies will be challenging
although your NGC253 is very good.
One approach would be to use a high end barlow to get more F ratio like
Marcus has been doing with his TOA150.
Perhaps an AP Barcon or a 2X Powermate or a Tak TOA 1.6X extender.
Greg.
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