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

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  1. O

    Why 42mm?

    I think 30-->32 and 40-->42 were just a way to set things apart for marketing, especially for the roof models as they built up.
  2. O

    Help with buying vintage binoculars

    A note on weight, old vs. new: The thick vinyl armor on most of today's binoculars often makes them as heavy or heavier than the old ones. Nikon Prostaff 7S, 8x30: 15 oz. (~2018) Nikon Monarch 7, 8x30: 15 oz. (~2018) Ranger DeLuxe 8x30: 15oz (~1958) Nikon Aculon...
  3. O

    Binocular tripod alternatives

    A cheap (lightweight) tripod with the legs in the air can do a lot of steadying. Many use a monopod, but it steadies mainly in one axis (when not on the ground). Opening out the cheap tripod legs gives you inertia in 2 axes.... A light tripod that's really jerky on the ground can do better...
  4. O

    Decent 8x32 Roof Prism

    Fun diversion, the super-junkers. Anyway, looking at the OP, and considering field trips to well-stocked sporting stores, and lumping 8x30 and 8x32: --At first glance, something like the Barska Crossover 8x30 WP (~$60) seems to offer the right things, the coatings, the field, the...
  5. O

    This quote from forum member got me thinking?

    I use Scope amber-coats(no, not the severe metallic type) or Bushnell Customs tracking deer and turkeys in the woods. It isn't so much that the brown comes through as the grey-blue and shine on the limbs is lowered. It is easier to follow the deer especially, and fisher-cats. IT does yellow...
  6. O

    OMEGA 10x50

    The EPs and coatings look good. Pretty solid Japanese stuff. There are early Omegas, with wide fovs and wide EP glass, but uncoated and short eye relief...not great. These are not those....pretty solid stuff. Given the age (even though they look young), the contrast would smarten up with...
  7. O

    Vintage Binoculars

    Two brands are rapidly becoming my favorites: Scope and Tower. I have trouble moving them on to the antique shop shelf. I love the contrast and field quality on the Scopes. The 7x50 / 414-ft "Overfield" cleaned up to amazing condition, The 10x35 Model 2900s have been incredible on beach jaunts...
  8. O

    Vintage Binoculars

    Good eye relief and sensitive eye placement, good precision. Sounds like some kind of 5-element EP...not your average set. Especially given it's 75-deg apparent! A good night pair.
  9. O

    I do not like green cast and ham - 10x alpha redux

    Q1: what is the perceived color (to the naked eye) of a reference white tile on an overcast day? Q2: On 4pm of a sunny Appalachian July day, what is the perceived color of a reference flat black tile 150yds away, in smog from distant cars or nearby pines? Hint: White and Black...
  10. O

    Smart HD Binoculars

    Indeed. Which raises a mystery: how did they actually become non-working, and will that happen under your ownership? Many old mechanicals work great with just surface cleaning. A third need an internal cleaning. Some are busted. But they seem to fare a lot better over time than electrically...
  11. O

    Bushnell Rangemaster FPO (Fuji) 7x35 10deg

    Relaxed view... a key characteristic of the Customs. Easy to step into.
  12. O

    Nice Old Bushnell Featherlight 11 8x36

    Oh dear...that's a beauty. The pre-Customs seem to have a little less eye-placement generosity but a bit sharper field edges. Awesome. I like the trade-off more towards the Featherweight field. That is great condition...most Customs get used hard for decades. They still work great though.
  13. O

    I do not like green cast and ham - 10x alpha redux

    There ya go. Maybe some variation though... They need to make a special model that works perfectly on color swatches at 30 feet. And keep the other one for hunters, guides, explorers, rangers, tourists, and people where the weather can get messy. I could save a lot on birdseed if I looked...
  14. O

    Smart HD Binoculars

    Haha....yes, they look like Lego binoculars or something...or for a Wii. Still, if I were an old auntie taking a nephew on a European art tour, they might be fun.
  15. O

    Smart HD Binoculars

    Velocity...I assume, is about damping factor and how too much stabilization can keep you from following a bird on the move. If you can't get a steady picture through stabilized binoculars while holding still, you need to return the binoculars...or call an ambulance :t: When I follow birds...
  16. O

    I do not like green cast and ham - 10x alpha redux

    I think it's interesting that there are discussions of nearby color swatches, when Zeiss has been designing for the pursuit of natural animals and objects under conditions where the atmosphere can haze the image and 'blue-shift' it strongly, and specular glare from items can cause a local...
  17. O

    8x42 vs. 8x56

    If the focuser is a bit wobbly on those, going backward (solid wheel focus) or forward in time would give you better images. 8x42 is a very competitive niche with many players, and very bright now. 8x56 is more rare. The bigger exit pupil is sort of wasted light, but it make it easier to...
  18. O

    Can someone help identify these please

    Nice additional background! Yes, it could have been any of those.. There was a similar chaotic period after WW-2 in Japan. In their case there were dozens of 'superlative adjective' brands, though many were quite good. After WW-1 There were even imitations of the heavy French Galileans in...
  19. O

    Comparison: Leupold Yosemite 6x30 and Celestron Cypress 7x30

    It can be tricky for that class of 6x30s. The lower power usually gives a design with the same number of elements a better quality field near the edges. The extra details can seem like more power.
  20. O

    Can someone help identify these please

    From the photos it looks like they might have been repainted. They could be another brand, but the methods were similar. I love my salvaged eyepieces. Contrast/sharp like orthoscopicss, 52-deg apparent field. (way more than an ortho, for sure) Pretty amazing for uncoated. Their lens surfaces...
  21. O

    7x35 Aculons, Featherweights, and 7x35 Porros in General

    Only a year ago they got raves....here. The mood comes and goes, sometimes it's time the "The Princess and the Pea". If some surfaces aren't the tops, they have designed for proper scattered light management accordingly. They are nice to look through. When you have 6 glass-air in the...
  22. O

    Can someone help identify these please

    You're on uncharted turf.. Mine were held down over a square-top/square-socket connection...easy. Looks like you have a brass screw that could help get the focuser arms up and away. With the arms away, you take off the guide tubes and then the shoulder 'lids'.
  23. O

    BX1 problem

    In my case, that happened. It sort of combined with the stiction problem I was havving, for these little 'thunks', jumps in focus. A tiny .030 hole eased the pressure. The stiction was still an issue, just not as bad. Others' mileage may vary....nothing is perfect and the same. It isn't like...
  24. O

    Can someone help identify these please

    I didn't read the plaster -of-paris part. Good Lord...my nightmare, but in a cast. Ingenious devils. First thing is to probe it for strength. Find (or get, at the dollar store) a tiny flat-blade screwdriver and chip at it. Normal plaster should yield fairly easily, and carve by hand, but...
  25. O

    Can someone help identify these please

    In the Colmonts, they collimated with inserted prybars, near as I could figure, and let the glue dry while the bars were fixtured outside. Horrorshow. If the chassis has some integrity (not in my case) and if I tried again, I think I would strart out cleaning the shelves well, and shimming...
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