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

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  1. M

    IN PRAISE OF THE SWAROVSKI 12X42 NL PURE

    Just for a point of reference, the SF 8X32 has an AFOV of 67° and a true FOV of 8.8° according to the numbers I have. I have trouble understanding how these two things can be confused.
  2. M

    IN PRAISE OF THE SWAROVSKI 12X42 NL PURE

    Look at a cloudless blue sky (for those in the UK, just look at a blank wall). The angular size of the field you see is the AFOV, and it can cover almost any size actual field of view, however you want to express that actual field.
  3. M

    IN PRAISE OF THE SWAROVSKI 12X42 NL PURE

    I feel the same way, but I really hate to sell anything, so I have a difficulty. If you have a decent scope you can't think of anything else to do with, take up double star chasing. You will be surprised at the beauty of them. Start with Mizar in the big dipper, one of the easiest.
  4. M

    IN PRAISE OF THE SWAROVSKI 12X42 NL PURE

    It doesn't seem that there are very many of us in here.
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