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

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  1. W

    To Balance Rail or not?

    I use heads that thane the 501pl plate (came with the 500ah (spares widely available). It has space for as many lock screw holes as you want and an anti rotation pin as well. You can slide it back and forth in the head, which I use for my larger scopes to adjust the balance, so useful, but not...
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