Thread: How to Measure telescope Focal Length?
View Single Post
  #2  
Old 29-09-2009, 12:45 PM
mswhin63's Avatar
mswhin63 (Malcolm)
Registered User

mswhin63 is offline 		 
Join Date: May 2009
Location: Para Hills, South Australia
Posts: 3,622
The full length is within the focuser, possibly the at the point of the lens. I am sure there is a diagram around that shows the point within the focuser. I varies slightly with the type of lense thus the need for focusing.
Reply With Quote