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  1. T

    How Binoculars and Telescopes Work

    John, Perhaps we should look at this as two different philosophical viewpoints? The first, the instrumentalist approach, regards a binocular as a functional device in it's own right. The optical properties of objective diameter and magnification can essentially explain the primary aspects of...
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    How Binoculars and Telescopes Work

    John, To be pedantic, everything you see, or rather imagine you see, is perception. A product of the senses. The brain's interpretation of a heavily processed and manipulated stream of electrical impulses from the eye. This thread has everything to do with perception, as it is intrinsic to how...
  3. T

    How Binoculars and Telescopes Work

    I think it might be useful to step back a moment and consider what brightness actually means. It is a visual perception. It is an individual's personal evaluation of the relative luminosity of a target as detected by the retina and processed by the brain. An individual's physiology, experience...
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    How Binoculars and Telescopes Work

    I had no intention of provoking this thread, but the topic is a good one, and it's a shame we haven't got further in addressing the title "How Binoculars and Telescopes Work". It's something that's been taxing me since I joined the forum, and has been the cause of heated discussions here and...
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    How Binoculars and Telescopes Work

    I expect most here are familiar with Holger's paper on the work of Berek which also considers the Leinhos and Kohler's work as well as Blackwell's. These were all terrestrial studies, probably aimed at a military audience. Undoubtedly many of the core findings are relevant to Astronomy, as Clark...
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    How Binoculars and Telescopes Work

    Kimmo, The way the brain acquires an image and presents the information to form a mental picture, does not occur in quite the way most people would imagine. In a fairly wooly sense, for photopic vision you might describe the "video" frame rate varying between about 30 frames per second low...
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    How Binoculars and Telescopes Work

    I’m afraid I’m the one that triggered the argument. I mentioned that while I understood telescopes and binoculars can make things not only visibly bigger, and perceptually brighter, I had a problem with the claims by some (actually many) that a passive optical device could somehow amplify...
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