Quote:
Originally Posted by casstony
The reason the Ha scopes are not more expensive is because they are able to use a smaller internal etalon than front mounted filters. The etalon inside the Lunt 60mm scope is 35mm in diameter, but you still get equivalent performance to a 60mm front mounted filter.
I've compared the 60mm pressure tuned Lunt scope and their 50mm front mounted filter and the contrast and detail was best in the 60mm scope. The scopes are better value imo since you can get more aperture for your money.
|
I'm beginning to understand somewhat.
What about a 60mm solar scope vs a 90mm? Is it like normal scopes where bigger is better?
What does this do at the back end? Like my ED80 vs my ED120, The 80 is able to image full disk, where as the 120 can't get the whole disk in. Will a full frame sensor on my 5DII still capture the full disk of the sun on the Solar-60 and/or 90? Will a cropped sensor on an Orion DSI start cutting into the limb of the sun?