-
Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.
Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
Search results
-
H
How do I separate light transfer vs exit pupil?
No difference at all in the light transmission between a fixed and zoom scope. Zooms use the very same design as as fixed magnification scopes. Zooming is accomplished by changing the position of the same lenses that are used for image erection. Also no difference at all between light...- henry link
- Post #16
- Forum: Binoculars