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After reading the Esprit vs Tak thread, it did get me wondering if some of the improvement of the Tak over the Esprit was an artefact of the Tak having a longer focal length. With a longer focal length (smaller image scale) you will get better looking stars on a OSC.
Of course, having good filters and a CCD will give a very good indication of perceived colour correction and the like.
As nice as the Esprit 150 is, it is a bit heavy for my liking. Although having never looked through a larger refractor than my 130mm, that alone is 10 kg and I do agree that getting a Dob to complement a more usable refractor is the way to go.
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