• 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.
ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Search results

thxpress_search_the_forum Search Opus
  1. F

    What is more important transmission or exit pupil size as we age?

    Thanks for providing this. Based on this, it seems changes in magnification and Aperture have the biggest impact on twilight performance with transmission being minor.
Back
Top