• 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. M

    NL32 vs SF32 (and a few others)

    So you have made the sealed chamber even tighter,and moved your eyeballs closer to the lenses.
  2. M

    NL32 vs SF32 (and a few others)

    Do you have any idea what the relative humidity or the dewpoint was at that time?
  3. M

    NL32 vs SF32 (and a few others)

    It isn't inevitable, if the lenses are below the dew point,and your eyeballs are moist and warm, moisture will condense on the lenses. Only under those conditions will it occur. You have a little chamber of saturated air between the two ends, but if the lenses are above the dew point...
  4. M

    NL32 vs SF32 (and a few others)

    A thorough, efficient, and determined search for"defects" will invariably find one or more.
  5. M

    NL32 vs SF32 (and a few others)

    Thank you. That's unfortunate. What happens if you simply raise your chin?
  6. M

    NL32 vs SF32 (and a few others)

    I would ask the perhaps unwelcome question "If the artifacts go away when you slide the eyepieces down your glasses, why are you using them up that high to begin with?"
Back
Top