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good try there keep it up. The bigger the lens the more trouble you are going to have. Without guiding there is a limit to what you can do. The only way you are going to shot galaxy's is to start guiding and increase your expose=er time. Lens size i use a 4" scope at F/5.4 am are very happy at the moment with the photos i am taking. You don't need a big telescope to take photos of the night sky unless you are going very deep with very small galaxies. If you can not guide with a web cam i would get am offaxas guider and a illuminated reticle eyepiece and try to guide that way and start with the smallest lens you have. Maybe put your camera piggy backed on top of the telescope.
Phil
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