• 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.

Members Who Replied this thread

Thread
What is more important transmission or exit pupil size as we age?
  • D
    50

    [email protected]

    Well-known member From Colorado
    • Messages
      7,495
    • Reaction score
      1,661
  • J
    26

    Jessie-66

    Germany From Germany
    • Messages
      239
    • Reaction score
      65
  • G
    10

    Gijs van Ginkel

    Well-known member From utrecht
    • Messages
      2,899
    • Reaction score
      1,261
  • S
    8

    Sterngucker

    Well-known member
    • Messages
      207
    • Gallery
      19
    • Reaction score
      134
  • dries1
    7

    dries1

    Member From Anywhere
    • Messages
      5,170
    • Reaction score
      2,195
  • B
    7

    Binastro

    Well-known member From S.England
    • Messages
      6,984
    • Reaction score
      1,153
  • S
    6

    sidpost

    Well-known member From Texas, USA
    • Messages
      254
    • Reaction score
      41
  • Chosun Juan
    5

    Chosun Juan

    Given to Fly From Central West NSW, Australia
    • Messages
      8,986
    • Gallery
      73
    • Reaction score
      260
  • Troubador
    5

    Troubador

    Moderator From Sheffield
    • Messages
      12,564
    • Gallery
      39
    • Reaction score
      3,128
  • M
    4

    Maljunulo

    Well-known member From Connecticut
    • Messages
      3,025
    • Reaction score
      2,198
  • tenex
    4

    tenex

    reality-based From Colorado
    • Messages
      3,449
    • Reaction score
      2,096
  • Alexis Powell
    3

    Alexis Powell

    Natural history enthusiast From LY+DG counties, Kansas, USA
    • Messages
      3,825
    • Gallery
      1
    • Reaction score
      311
  • H
    3

    henry link

    Well-known member From north carolina
    • Messages
      5,593
    • Reaction score
      1,613
  • Omid
    3

    Omid

    Well-known member From Los Angeles, California
    • Messages
      576
    • Reviews
      1
    • Reaction score
      57
  • P
    3

    Patudo

    sub-200 birding aspirant From London
    • Messages
      1,724
    • Reaction score
      1,176
  • G
    3

    Grial

    Active member 49 From Moscow
    • Messages
      32
    • Reaction score
      32
  • John A Roberts
    2

    John A Roberts

    Well-known member From Perth
    • Messages
      1,999
    • Reaction score
      1,870
  • P
    1

    paddy7

    Well-known member From suffolk
    • Messages
      765
    • Reaction score
      28
  • A2GG
    1

    A2GG

    Beth From Northeast
    • Messages
      3,664
    • Gallery
      2
    • Reviews
      1
    • Reaction score
      721
  • J
    1

    jring

    Well-known member From Germany
    • Messages
      3,672
    • Reaction score
      657
  • S
    1

    SeldomPerched

    Well-known member From England
    • Messages
      983
    • Reaction score
      331
  • F
    1

    fotbg

    Active member From Toronto
    • Messages
      26
    • Reaction score
      13
    • Showing all items
    Back
    Top