View Single Post
  #1  
Old 24-01-2010, 05:25 PM
koputai's Avatar
koputai (Jason)
Registered User

koputai is offline
 
Join Date: Nov 2007
Location: Sydney, Australia
Posts: 1,648
Imaging vs Guiding Focal Length

Folks,

What should the relationship between the focal lengths of your imaging scope and your guidescope be? If imaging with an ED80 (600mm), would 150mm be ok for the guider? What about the converse, if imaging with a 150mm lens, does the 600mm of the ED80 make for good guiding?

Thanks,
Jason.
Reply With Quote