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

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  1. J

    Birding Scope plus Barlow.

    BTW if it can't focus at infinity if possible reduce the length the light has to travel. For example some Barlows can be screwed into a 45 or 90 degree image erector after removing the external tube on that side, or screwed directly into some eyepieces. I thought a Barlow usually helped with...
  2. J

    Birding Scope plus Barlow.

    I probably shouldn't have posted an image along with the comment, sorry if it was confusing. The colour has been brought out rather than visible to the Human Eye (I think this is the only time I've done that). The image is made by stacking. I give a step-by-step guide of what I did here...
  3. J

    Birding Scope plus Barlow.

    The effect of a Barlow depends where in the imaging chain it is placed as much as its rating (2x, etc.)... For example I shot the Moon with the following arrangement: Scope-2x Barlow-Diagonal-Extension Tube-Adaptor-Camera As I said it's a 2x Barlow, but in this configuration it will be about 3.5x...
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