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

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  1. V

    10X50 Swarovision

    I guess it depends on what other equipment you carry, scopes, cameras, lenses, tripods, food, water etc. (every gram counts, and grams become kilos…:-C) and how you do your birding, a 10x50 could be fine for couple of hours, but maybe not 2-3 days intense birding from dusk to dawn.
  2. V

    10X50 Swarovision

    bigger exit pupil is always nice, even in good light I think, the 10x50 SV is available here for 2000 € now, 10% rebated, thats 250 € less than the SF 10x42, hmm, a bit tempting, but no, the weight will be too much, most likely
  3. V

    10X50 Swarovision

    still missing a porro…a usable one... ;)
  4. V

    10X50 Swarovision

    It might even be the worlds widest PORRO.. ;) definitely missing a porro in the zeiss line up, :t:
  5. V

    10X50 Swarovision

    The EL 50mm and the SF 42mm is the same length (174 mm vs 173 mm), the EL 42 is about a 1/2 inch shorter (160 mm) so the difference in length are not huge, pretty impressive compactness in the EL 50mm,
  6. V

    10X50 Swarovision

    see my updated previous post, don't think the market is big enough, now when then conquest HD:s exists, most birders tend to prefer 42mm but a 7x35 SF would be fun, but i'm probably wrong as usual, :cat: but a well balanced and light 10x50 SF would be a dream.. but now back to the swaros… :-)
  7. V

    10X50 Swarovision

    sorry to say, but zeiss already have the 10x54 HT, I don't think there will be at 8x32 SF either actually. right now zeiss bino line up feels a bit messy actually, old and new models, cheap and alpha, FL:s, terras, conquests, SF, HT naahh…I'll take the green pill…instead of the blue I think... :-O
  8. V

    10X50 Swarovision

    Believing is seeing… (and a free trip to Spain helps) https://www.youtube.com/watch?v=Jc9M_6oH_2M you can quote me on that ;)
  9. V

    10X50 Swarovision

    IF your eye pupil can dilate to 5.6 mm, depends (typically) on your age: http://content.lib.utah.edu/utils/ajaxhelper/?CISOROOT=EHSL-Moran-Neuro-opth&CISOPTR=105&action=2&DMSCALE=75&DMWIDTH=487&DMHEIGHT=464&DMX=0&DMY=0&DMTEXT=&DMROTATE=0
  10. V

    10X50 Swarovision

    you may be correct, but how about this: 1. The human eye is said to be able to distinguish +-10% in brightness differences. 2. A 50mm objective lens can catch 42% more photons than a 42mm. 3. Maximum eye pupil size can vary between individuals (5-9 mm). 4. What we define as "daylight" can vary...
  11. V

    10X50 Swarovision

    sorry, I was not clear, I meant the latest HD-version, the older conquest models were not of the same quality concerning FOV and eye relief etc. http://www.zeiss.com/sports-optics/en_de/nature/binoculars/conquest-binoculars/conquest-hd-binoculars.html#models but it's a lot bigger than the...
  12. V

    10X50 Swarovision

    Zeiss Conquest 10x56? not as good as the SV 10x50 but cheaper..
  13. V

    10X50 Swarovision

    Eye relief is much better on the SV, the 8x32 FL have 16mm according to spec. My 7x42 FL I measured to 15mm effective, so I suspect that the 8x32 might have a bit less, and I got that impression when testing. The view is a bit more cramped. The 8x32 SV have 20mm ER according to specs and...
  14. V

    10X50 Swarovision

    old (japan) porros often had squaren shaped exit pupils… that was not optimal.. ;) but not very common these days,
  15. V

    10X50 Swarovision

    I think there are many parameters involved in creating a relaxed view: Exit pupil, resolution, light gathering capacity/objective lens size, brightness/transmission, contrast, size/design of the eye piece/eye relief, FOV, AFOV, edge to edge sharpness, depth of field, field curvature...
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