How close do the focal lengths have to be between the 2 telescopes so that tracking with the smaller scope won't cause problems when imaging with the larger? The combination I'm thinking about is a Meade 10" LX200 with a 2500mm focal length (but I will be using a 6.3 focal reducer which I believe drops it down to 1600mm) and an Orion short tube 80 with a focal length of 400mm. I'm thinking the widefield of the 80 would be nice for picking up more guide stars but I'm not sure if the difference in magnification will cause a problem with my imaging. I'm using a Canon Digital Rebel at prime focus and an LPI for tracking (~6mm eyepiece equivalent I believe)Thanks for any help you can give.
Tracking Scope for 10" LX200
Started by StarGazer_2003, 10/27/2004 03:12AM
Posted 10/27/2004 03:12AM
Opening Post
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