• 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.
Where premium quality meets exceptional value. ZEISS Conquest HDX.

Search results

  1. Conndomat

    Daft question about low-light performance

    At least flat objects are roughly the same brightness, but the higher level of detail recognition is of course helpful. Andreas
  2. Conndomat

    Daft question about low-light performance

    Hi Milton, that is not correct, what matters is the eye pupil and not the lens opening! If your assumption were correct, a 12 inch (approx. 305 mm.) telescope would have to be super bright at 73x magnification (exit pupil identical to 12x50), but it isn't! In fact, the telescope with its own...
Back
Top