View Single Post
  #1  
Old 23-10-2006, 10:33 PM
g__day's Avatar
g__day (Matthew)
Tech Guru

g__day is offline
 
Join Date: Dec 2005
Location: Sydney
Posts: 2,902
Do high quality and/or large diagonals make a real difference on an SCT?

Guys I was pondering parking my standard diagonal for maybe a Williams Optics D-DIG2DS SCT 2" Dielectric diagonal with 1/10 wave, 99% reflectivity that Andrews sell for $259 (vs Astronomy Online for $349)! or maybe the 2" erecting prism D-EP90 for $315

I ponder do these diagonals make either or both viewing or imaging discernibly better - and if so under what conditions or what objects? Or are they really just a gimmick not worth the investment? My 80mm Megrez has one of the sorts of diagonals, and its contrast is terrific - but that might just be the quality of the optics of the scope.

What are peoples thoughts and experiences please!
Reply With Quote