View Single Post
  #10  
Old 27-07-2006, 10:44 AM
avandonk's Avatar
avandonk
avandonk

avandonk is offline
 
Join Date: Aug 2005
Location: Melbourne
Posts: 4,786
Worth a try. By the way the formula for focal reducers FR = (FL - x)/FL
where FL is the focal length of the focal reducer and x is the distance of the FR from the sensor all in mm. So on the figures you gave the FL of the CCD67T FR should be about 400mm. And for a FR of 0.8, 80mm distance between sensor and FR is about right.

Bert
Reply With Quote