View Single Post
  #31  
Old 11-10-2019, 04:43 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,185
The way I see it is a wider field of view captures more total light.

A faster scope broadens the FOV letting more total light in. A slower F ratio lets in less light and it is more tightly focused on less pixels as you mentioned.

But if you cropped the wider FOV image and compared a similar area of crop to the slower F ratio at the same aperture what would you get?

Greg.
Reply With Quote