I use the 20"f4 Ultralight and the 28"f4.2 Webster the most. The 16" f4.5 Dobstuff and 18"f4.2 Plettstone I use less often because Aperture rules
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I used to have a 16" Lightbridge but I threw it down the tip because it was rubbish. If you want a good dob buy a secondhand premium or brand new. I feel my aperture fever is sated for the moment but never say never
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