I haven't imaged in a couple of years. Trying to get back in the swing. I have imaged mainly with a C14 on a CGXL with a ST80 and a ZWO 120 mini to guide and using a HyperStar/ZWO 294 MC Pro to image. This made me pretty lazy with polar alignment and tracking since most images at 1 minute or less in the stack. I got a 0.65x large format focal reducer from Starizona last year and have just now got around to trying it out. I have tried a couple of nights with the same results - enlongated stars. At 300 seconds it is obvious. I think I had good polar alignment according to SharpCap. I have never tried to image at focal lengths like this (2560 mm with focal reducer). Is this a flexure issue with the external guide scope or an issue with my tracking/PhD settings. I have a Celestron off-axis guider but had no luck when I first attempted to use.
Any tips would be great appreciated. Tim
Edited by tiny68, 21 June 2021 - 01:55 AM.