Can you use a Tv or a Williams optics field flattener/ focal reducer visually to correct field curvature while looking thru a eyepiece. not ccd I am curently using a new sv 80ed
Focal reducer/ field flatteners
Started by vpdwl, 02/05/2009 07:36PM
Posted 02/05/2009 07:36PM
| Edited 02/05/2009 07:36PM
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