• 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

  1. J

    Testing for Phase Correction

    Sorry, I submitted the question twice! John
  2. J

    Testing for Phase Correction

    Hi, There may have been a previous post, or reference to a source of testing information, there are snippets of info about using polarizing filters (linear or circular?), however, I am unable to find a complete instruction. Could someone please advise of a relatively simple technique? Thank...
  3. J

    Wind River 8x42 Cascades

    Can someone please advise if the earlier model with pull up eyecups is phase corrected? Thank You, John
  4. J

    Wind River 10x40 I.F. Roof Prism Binoculars

    I have a pair of these in my collection, but am unable to locate any information on them. It would be much appreciated if the knowledgeable members of BF could advise the year(s) of production, phase coating (?), angle of view, if waterproof, original cost, and any other information. Thank...
  5. J

    Angenieux 7x30F binoculars

    I am looking for more information on these binoculars. They were made in France, I think in the early 1990's, they are double hinged, (like 8x20 Trinovids, Swaroski's etc), roof prism, FOV 7.2 degrees, 126M@1000M, Eyerelief ~15mm, with rubber fold down eyecups, minimum focus ~3M, weight 405...
Back
Top