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General Forum

  1. Account suspended
    Joined
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    143494
    14 Dec '16 18:40
    I purchased a pair in a gadget shop in Malta late November.
    For theater, ballet and opera.
    https://s28.postimg.org/5ppqr4bv1/DSCN0646.jpg
    https://s28.postimg.org/pllq6nswd/DSCN0641.jpg
    https://s28.postimg.org/dl0a5xlhp/DSCN0642.jpg
    https://s28.postimg.org/x44vfak99/DSCN0644.jpg
  2. Subscribersonhouse
    Fast and Curious
    slatington, pa, usa
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    14 Dec '16 22:25
    Originally posted by vandervelde
    I purchased a pair in a gadget shop in Malta late November.
    For theater, ballet and opera.
    https://s28.postimg.org/5ppqr4bv1/DSCN0646.jpg
    https://s28.postimg.org/pllq6nswd/DSCN0641.jpg
    https://s28.postimg.org/dl0a5xlhp/DSCN0642.jpg
    https://s28.postimg.org/x44vfak99/DSCN0644.jpg
    Does it help you see the positions on that chessboard better?🙂
    I love binocs, I have a sun binocular, 20X80 with sun filters in front, removable and you better use them if you want to view the sun. Your 30X60 means 30 mm lens and 60 power so I expect it would have a rather narrow view but that could work in a theater.

    60 power is quite a lot, it would mean hard to hold steady. You have that problem? You have to brace it on your knees or some such? Maybe you use a monopod?
  3. Joined
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    14 Dec '16 22:53
    Originally posted by sonhouse
    Does it help you see the positions on that chessboard better?🙂
    I love binocs, I have a sun binocular, 20X80 with sun filters in front, removable and you better use them if you want to view the sun. Your 30X60 means 30 mm lens and 60 power so I expect it would have a rather narrow view but that could work in a theater.

    60 power is quite a lot, it would ...[text shortened]... You have that problem? You have to brace it on your knees or some such? Maybe you use a monopod?
    Typical opera glasses are 3x by 25 mm.
  4. Subscribersonhouse
    Fast and Curious
    slatington, pa, usa
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    15 Dec '16 13:32
    Originally posted by JS357
    Typical opera glasses are 3x by 25 mm.
    Did you see the ones he posted, clearly marked 30X60 which I assume means 30 mm lens and 60 power, which of course means a very narrow view, smaller than iris size.

    Usually the numbers are reversed, 60X30 and clearly those glasses are not 60 mm diameter so they were probably made in China or some such country not knowing the conventions for such.

    The standard hunters/birdchaser binocs are 7X50, 7 power, 50 mm lens.

    That results in a view angle that matches the size of the average iris so you get a fairly wide viewpoint angle. If you had a 50 mm lens with say ten times the magnification or a 70X50, the image would be like looking through a knothole.

    So to get full iris spanning image at 70 power you would need a 70X500 mm lens, a bit impractical, eh. 18 inch lens, you would have a bit of a problem just picking it up, and then you would have two of them side by side which would present its own set of problems like needing extra high quality surface reflector mirrors to go from lenses over a meter wide to the distance between human eyes. Then if you wanted 700 power........
  5. Standard memberapathist
    looking for loot
    western colorado
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    17 Dec '16 01:39
    I want digital binoculars. The view on a screen. Um, I'm nearsighted, bulky 'nocs and glasses don't mix. Where are they?
  6. SubscriberFMF
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    17 Dec '16 01:471 edit
    Originally posted by apathist
    Um, I'm nearsighted, bulky 'nocs and glasses don't mix. Where are they?
    You probably left them down somewhere. Where have you been in the last 10 minutes?
  7. Mar-a-Lago
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    18 Dec '16 14:33
    Originally posted by sonhouse
    Does it help you see the positions on that chessboard better?🙂
    I love binocs, I have a sun binocular, 20X80 with sun filters in front, removable and you better use them if you want to view the sun. Your 30X60 means 30 mm lens and 60 power so I expect it would have a rather narrow view but that could work in a theater.

    60 power is quite a lot, it would ...[text shortened]... You have that problem? You have to brace it on your knees or some such? Maybe you use a monopod?
    The sun should be viewed at night.
  8. Subscribersonhouse
    Fast and Curious
    slatington, pa, usa
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    18 Dec '16 17:05
    Originally posted by apathist
    I want digital binoculars. The view on a screen. Um, I'm nearsighted, bulky 'nocs and glasses don't mix. Where are they?
    You are so weak you can't lift binoculars? There are holders that go over a lawn chair that holds the noc's and you just lie back and watch the view. Besides, I am very nearsighted myself and there is plenty of focal adjustment to make the image in focus.
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