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

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  1. Pinewood

    Ross No. 5 Mk 4 “Tuna Can” 7x50

    Hello, A UK collector told me that the No. 5 Mk 5, were as good or better than the wartime Leitz Porro II 7x50. I agree. Another collector wrote that the Porro II design did not lend itself to edge sharpness. The design certainly had better light transmission than contemporary Porro I...
  2. Pinewood

    Ross No. 5 Mk 4 “Tuna Can” 7x50

    Hello Dude, I have a similar binocular: No.5, mk 5. If they are coated, they were probably upgraded after WWII. The red terminals are for internal electric heaters. Mine has an obscured engraving, ending in 944. !944? Stay safe. Arthur :hi:
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