SV503 102mm f/7 ed how good

[doug mc]

Interested in knowing if anyone has purchased one of these. Interested in visual use only.

[AG Hybrid]

Well, I got curious and went down a bit of a rabbit hole. But, it stated ED element is S-FPL51. In a doublet there will be some purple fringing on the bright stuff. For visual should be fine actually. You would probably want a triplet for AP.



If you too want to go down a glass type rabbit hole, this thread below should keep you occupied for... oh at least half an hour. https://www.cloudynights.com/topic/563619-fpl-53-vs-fpl-51-glass/