[ATM] Houghton corrector radii

[Richard]

Hi vladimir,

Monday, September 18, 2006, 4:36:34 PM, you wrote:

vs> Thought it would serve purpose to post equations for 
vs> needed lens element radii of curvature for the Houghton 
vs> corrector in Newtonian configuration.

And a quick reminder that there is a calculator to do the sums
for you here :

http://www.atmlist.net/contrib/cnc-at-cncservo-dot-co-dot-uk/LH1.1.0.42.zip

-- 

Best regards,
  Richard in the UK