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

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  1. tenex

    Swarovski NL 8x42 - First Impressions

    Except that buildings in the US aren't even very old... I agree with you that the advantages of big city life are diminishing now, and disadvantages increasing, rapidly. (I grew up in NYC myself. But of course developing countries are another story...)
  2. tenex

    Swarovski NL 8x42 - First Impressions

    The NL is very special and definitely worth seeing. That said, it cost me considerable anguish re-evaluating my own fine bins that I was "perfectly happy with", and trying to work out which NL I'd be better off with (instead?) and why. If I were starting today NL 42 would definitely be my...
  3. tenex

    Swarovski NL 8x42 - First Impressions

    Wonderful! Through the NL (with...?), or...? And off to Ruffled Feathers we would go... but as crazy (and I do mean that literally) as the past year has been, I also find myself thinking that change has been occurring for a long time. Early 20th-C photos show Manhattan streets absolutely...
  4. tenex

    Swarovski NL 8x42 - First Impressions

    It's three-dimensional. Some (e.g. Henry) have been discussing the effects of imperfect centering on the optical axis. That might be a bit harsh. While many classifieds give no reason for the sale and some simply say funds are needed, other sellers do describe pros and cons (especially of an...
  5. tenex

    Swarovski NL 8x42 - First Impressions

    Cameras record images upside-down on their film/sensor.
  6. tenex

    Swarovski NL 8x42 - First Impressions

    You're lucky if the cups work, especially without eyeglasses. The demand from glasses-wearers for huge eye relief makes a truly wide field eyepiece large, heavy, and complex, and leads to unforgiving eye placement. I've just been looking at astro eyepieces for a spotting scope, and it's the...
  7. tenex

    Swarovski NL 8x42 - First Impressions

    When was the exchange rate so favorable? And surely you're not getting the US warranty with purchases from Europe? It's fun to see SF32 and NL coming out, but despite the interest I've expressed previously in larger FOV, we're really very happy with the binos we have now (small Leicas and big...
  8. tenex

    Swarovski NL 8x42 - First Impressions

    Info on focusing etc much appreciated. How do you account for 8~18% discrepancies from manufacturers' stated weights -- do you have caps or something attached that they excluded?
  9. tenex

    Swarovski NL 8x42 - First Impressions

    Indeed. They could surely use an enthusiastic customer now, in hard times for local businesses. Just don't look there and then buy online...
  10. tenex

    Swarovski NL 8x42 - First Impressions

    I was referring to Front Range Birding Center which has two stores in the Denver metro area. Besides birdseed etc they carry Swaro, Leica, and Zeiss (also Opticron, maybe another) but may not stock certain models like SLC. Very nice people.
  11. tenex

    Swarovski NL 8x42 - First Impressions

    This is such a peculiar choice really, SF 32 vs NL 42, so different... Of course Swaro has clearly outclassed SF 42 not only by further improving its FOV, but showing that can be done without oversizing the bino. Which rather undermines the SF 32 concept also, given some possibility of...
  12. tenex

    Swarovski NL 8x42 - First Impressions

    You are of course overlooking a long list of (deliberately) coarsened spellings like color, defense, center, check (for -que), catalog, and my personal peeve, gray...
  13. tenex

    Swarovski NL 8x42 - First Impressions

    I know that. To be entirely correct I should have said "I was viewing distant objects with the bino focused for my eye to form an image at an apparent distance of about 2m." Thanks Alex for the reminder of Modern Photography. I don't recall paying any attention to that figure at the time.
  14. tenex

    Swarovski NL 8x42 - First Impressions

    That is the disputed claim. It seems unlikely from a biological point of view, and it doesn't feel that way to me... though I wonder what I would have said when my distance vision was sharper. I have doubts about Omid's theories also, but when I performed his experiment with a camera I...
  15. tenex

    Swarovski NL 8x42 - First Impressions

    What is your justification for that claim? It doesn't feel so to me, and there's evidence to the contrary, as in this recent thread: https://www.birdforum.net/showpost.php?p=4009330&postcount=210
  16. tenex

    Swarovski NL 8x42 - First Impressions

    Thanks, Henry. I hadn't made the transition from looking at straight lines near the edge in my own more traditional binos, to looking at a figure like a square (or circle, in your diagram). I've never really used a model like the EL SV that shows strong AMD. I suppose it would make sense if...
  17. tenex

    Swarovski NL 8x42 - First Impressions

    I'm having trouble parsing this. The first sentence sounds like a (somewhat redundant?) description of simple pincushion distortion, but it's the absence of pincushioning that's understood to cause a rolling-ball effect. Or is that sentence actually trying to describe the more complex...
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