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

Zeiss monocular 3x12 and 6x18 BT monoculars (1 Viewer)

I don't think one is going to find field-flattener lenses in any small monocular.
Field curvature and even astigmatism (where sharp focus at the field edge cannot be achieved by refocussing) is quite noticeable in some top-priced bins.
Give it a try at maximum extension (9x magnification I believe), although it's pretty difficult to hold still. The field is flat and pincussion distortion is negligible.
The 6x18 Zeiss may not be as solidly made as the new Leica Monovid but, IMO is more practical (no additional close-focus lens needed) and is a lot less expensive.

Regards,

John
 
Hello,

Other users of 6 x 18 T monocular confirmed me that it is optimized for short distance observation rather than long distance one, and so it is more a kind of "tele-magnifying glass" rather than a small spy glass.

Best Regards.
 
Hello,

Other users of 6 x 18 T monocular confirmed me that it is optimized for short distance observation rather than long distance one, and so it is more a kind of "tele-magnifying glass" rather than a small spy glass.

Best Regards.

I've had the Zeiss 6x18 T monocular for about 10 years. I love it. It gets used at least as much for close viewing as long distance observing.

I also have the little Zeiss 5x10 MiniQuick T. It isn't a toy. It will give enough of a boost in image scale be useful.

Rich
 
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