A Mewlon 180 is a beautiful scope. I just wish they used a RACI finder instead of a straight tube and they are pricey compared to other scopes. I do understand the desire for high quality. I grew up with a little Questar available for my use and the quality was unmatched with anything else at the time. Someday I might get a 7 inch Questar Mak as my contribution to the industrial art world.
OTAs suffer from similar economics as other precision equipment; controlling tolerances to the last decimal point usually raises the costs exponentially. I just paid 3 times the cost for a high precision bench mill than other nominally equivalent models.
My experience and my Astro friends experiences with the GSO Dobson, and Cassegrain OTAs has been very good. Buying from a reputable vendor that tests the OTAs before shipping them rather than trying to save a few dollars, seems to be a good strategy. it’s best to test the optics and return the OTA if there are any issues. I know some folks love to tinker and get pleasure from trying to correct imperfections real or perceived, but it’s not for most of us.
Hanging a heavy optical train, such as large DLSRs with focal reducers, on the end of a GSO Crayford is probably asking too much. Yes, you can upgrade the focusers, but the costs for the aftermarket mods can erode the value proposition
I think the GSO Dobsons, RC and CC’s are very good buys, but they aren’t comparable in price or precision to Takahashi, or Japanese Vixens. I also understand the personal choice to support Taiwanese companies over competing Mainland suppliers, given the state of the world.
The good news is there are few bad choices these days.
Edited by Gaitaslibre, 16 December 2021 - 10:04 AM.