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

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  1. Gumball

    Best marine binoculars?

    . I have purchased over a dozen binoculars from ebay, "sight unseen" . First, I judge by the seller's "feedback" . . . ie. if the seller's feedback is 100% over a few hundred sales and several years, I judge him trustworthy. If it is a "new" seller, or has a lower feedback, then you roll the...
  2. Gumball

    Best marine binoculars?

    I posted a few replies to the thread question, with a little additional levity. I have attempted to answer all questions from my perspective, and from my experiences. I have stated time and again that I am a very amateur observer. I have a small binocular collection. I have no optical...
  3. Gumball

    Best marine binoculars?

    . . . . thank you for clarifying that . . . . . . . .very helpful . . . . . . I read several posts to your thread, and attempted to answer the question of "best" from my personal experience, and with some attempted levity added. I hope my posts have been of assistance to you, or at the very...
  4. Gumball

    Best marine binoculars?

    AGAIN . . . . . I made it clear (on several posts) that these are MY perceptions and observations, and NOT backed up by Scientific Fact. so . . . . it is acceptable for others to post their "perspectives" and "perceptions" . . . . . . . . well then . . . . . . . .
  5. Gumball

    Best marine binoculars?

    Again, permit me to clarify . . . . . . . . the only opportunity to try other binoculars in a "dark sky" environment, was at a star party. I do not own a boat, and I very seldom go out on the ocean. I listed the binoculars that I used, from my memory, about 10 years ago. Obviously, I should...
  6. Gumball

    Best marine binoculars?

    I have had the opportunity to do a side-by-side comparison (at night) with a few other binoculars: Zeiss 10x50 Night Owl Fujinon 7x50 FMTR Nikon 10x50 EII Swarovski 10x50 EL To clarify: - I do not own, nor do I have available a pair of the Zeiss 8x60 "Fat Boys" My memory tells me that the...
  7. Gumball

    Best marine binoculars?

    Please permit to address your questions: - "probably artistic license" . . . . . . as I have previously stated, the observations that I posted were my personal perspectives - "The depth of field comment is probably not accurate but a feeling" . . . . as I stated, I do not have a degree as...
  8. Gumball

    Best marine binoculars?

    . . . . "probably means" ?? " . . . . YES, they are accurately and correctly collimated. . . . . "curved field" . . . I am not an Optical Physicist, but the Zeiss 7x50 and the 8x60 "Fat Boys" do have the view that I described. . I posted these pics a simple example of a couple of the...
  9. Gumball

    Best marine binoculars?

    150 meters I merely mentioned that to illustrate that these were completely waterproof. (I was not suggesting that anyone take them to 150 meters depth to find out) Depth of field: I have my 7x50 "Fat Boys" focused to read script at a distance of 150-200 meters, and when viewing stars in the...
  10. Gumball

    Best marine binoculars?

    But, if you are looking for the BEST 8x60 glasses . . . . . These are known as Zeiss "Captain's Glasses", or "8x60 Fat Ones" There were only a few made before the end of WW2, and exclusively issued to the more successful U-boat Captains. The focus adjustment is identical to the 7x50 "Fat Ones"...
  11. Gumball

    Best marine binoculars?

    Weight of the WW2 8x60 is about 2200 grams, where the 7x50 that I posted is about 1750 grams.
  12. Gumball

    Best marine binoculars?

    Those 8x60 are known as "Commanders Glasses", or "Tall Ones" They are excellent glasses (I have a pair), but they are not completely waterproof, as are the 7x50 in the photo that I posted. Also, the price is vastly increased (probably because they are described as "unissued") A decent price for...
  13. Gumball

    Best marine binoculars?

    Zeiss 7x50, made exclusively for the Kriegsmarine U-boat service. The binocular is completely sealed. The focus is set by screw at the base of each eyepiece which could be adjusted using a screwdriver. Focus was set at 250 meters, giving a clear view from there to infinity. These binoculars were...
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