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

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  1. has530

    Xtrawide 4x21 Venus and Jupiter

    I had initially measured based on some star separations and seeing what fit and guessing from there (somewhat difficult as the edge performance is very poor). Just now I did a proper measurement from mounted projecting a flashlight through the objective onto a wall while focused at infinity and...
  2. has530

    Xtrawide 4x21 Venus and Jupiter

    That night I was able to "see" both somewhat easily in the fov of my visionking. I put see in quotations because the edge performance is so poor they appear just as elongated arcs rather than anything resembling a planet or dot of any kind. It sounds as though we may have very different samples!
  3. has530

    Xtrawide 4x21 Venus and Jupiter

    I will need to try in my visionking 5x25 tonight as we may finally have clear skies. Last time I measured I got somewhere around 16.25 for the TFOV (along with magnification a bit under 4.5)
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