Jump to content

Where do ASA field flatteners go in the image train

Recommended Posts

Quick question for anyone using an ASA field flattener: Where does it fit in the image train, next to the backplate or further back towards the camera?


This is for a 4" flattener on a Cassegrain OTA but I assume the principle is the same for Newtonians and smaller correctors - do they go first, last or somewhere in the middle, or doesn't it actually matter?


I've installed mine next to the backplate but am having focus issues so just wanted to check.



Edited by nakbrooks
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...