Has anyone used the Orion Telescopes Ritchey-Chretien telescopes (and comparible models sold by other companies)-not the large 400mm truss RC but the smaller ones (6-10in aperture)? How well do they perform for photometry?
I am using an ODK16 since 2009 or so for photometry. Since 2011 it is used remote from ROAD (Remote Observatiry Atacama Desert) in Chile. A huge amount of photometry has been submitted to the AAVSO database by me since then. My observer code is HMB. If you need further information maybe contact me privately.