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

Recent content by Renze de Vries

  1. Renze de Vries

    Zeiss 20 x 60 S binoculars; real or fake?

    Serial number 2659587 = 2004/2005
  2. Renze de Vries

    Historical Review of Swift 804 Audubon Binoculars

    Hi, This binocular is well worth checking for imperfections and repair. Contact Nicolas Crista at NRC Optics, he really knows his stuff. Renze
  3. Renze de Vries

    Historical Review of Swift 804 Audubon Binoculars

    yes, 1970. And as such it is the first edition of type 3, a model made for the European market. Later European editions came with blue or gold ribbons. In our survey it's named type 3c, but for chronological reasons it should have been type 3a. Type 3's were made until Hiyoshi completely...
  4. Renze de Vries

    Interesting Optics Trade discussion on where Leica binoculars are made.

    Hi Henry, Good stuff, thank you. I tend to agree with your findings, certainly when it comes to the aspect of sharpness. However, as I've always understood, sharpness is only one aspect of resolution. And to me, resolution is what really counts. If we're comparing porro's and roof binoculars on...
  5. Renze de Vries

    NL Pure 8x42 eyepiece lens edge issue. Is this common?

    Gijs, This is exactly what happened to me recently. A guy, who had taken an interest in one of my binoculars, at least this was what he told me, came by to check the instrument. He took his cell phone, switched the flash light facility on and inspected the internals of my pristine binocular (it...
  6. Renze de Vries

    Historical Review of Swift 804 Audubon Binoculars

    Hi, Yeah, keep in touch, lovely. Renze
  7. Renze de Vries

    Should I sell the Noctivid 8x42, replace with the new Swarovski 8x42 NL Pure?

    Should you sell the Noctivid? Immediately! First of all, the Noctivid is too small. Only women and children will be able to get their fingers between the barrels. The Noctivid is too heavy. It’s extremely important for binoculars to give the impression of lightness, so you can’t resist...
  8. Renze de Vries

    6 January 2022 - New Leica announcement

    I don't understand, what exactly are white skies? And why would the Noctivid be painful? Renze
  9. Renze de Vries

    6 January 2022 - New Leica announcement

    Thanks, very good!
  10. Renze de Vries

    6 January 2022 - New Leica announcement

    The only interesting aspect for me, as a birder, is the application of the Perger prism. I'm convinced Leica is able to do nice things with it in future binocular designs. So what does the Perger do here, in this instrument for hunters? How about the view? I see figures for light transmission...
  11. Renze de Vries

    6 January 2022 - New Leica announcement

    Tom, Yes I know. And leica is no exception to the rule. It's well known for instance that the last Leitz Trinovids with the red badges were better than earlier production Trinovids. But there's sample variation at work as well. I have seen samples of 1960 Trinovids which were so good, I wouldn't...
  12. Renze de Vries

    6 January 2022 - New Leica announcement

    Tobias, what do you mean by 'stupid stuff'? The Noctivid? Because it doesn't meet your demands, like '3D pop' and complete absence of flare? Or because of seriously considering a porro prism like the Perger? Renze
  13. Renze de Vries

    6 January 2022 - New Leica announcement

    So according to your observation, Leica improved their Ultravid line considerably, without advertising the fact? Just by suddenly making improved batches with no further notice. This doesn't sound good to me at all. I think it's alarming. Think about it. What would this practice mean for the...
  14. Renze de Vries

    6 January 2022 - New Leica announcement

    Thanks Henry, excellent thread. Renze
  15. Renze de Vries

    6 January 2022 - New Leica announcement

    The Youtube is intriguing for several reasons. I suppose these are Leica reps discussing the Perger prism, right? Well, the left guy says he would be very interested in a non-rangefinder model, i.e. a conventional binocular having the Perger prisms on board. Could this be an indication that...
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