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Recent content by angelo225544

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    The enduring allure of the 7x50 Porro

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    The enduring allure of the 7x50 Porro

    Very well said, John. Point well taken. I must agree it is very difficult to sort out real vs perceived differences, since binocular viewing is necessarily subjective. This discussion reminds me of discussions among audiophiles, who also struggle to separate real vs perceived differences.
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    The enduring allure of the 7x50 Porro

    Thank you for asking. What I was attempting to say, however inelegantly, is simply this: What we perceive as depth of focus will be influenced by actual measurable differences between the various binoculars in question, as well as the object being viewed, and in spite of our unfortunate reliance...
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    The enduring allure of the 7x50 Porro

    This explanation seems to fall short. It assumes that there is only a single variable - magnification. This discussion, as I read it, attempts to explore (albeit subjectively), observed differences among instruments of equal magnification. If, to a single observers eyes, there appear to be...
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    The enduring allure of the 7x50 Porro

    Perhaps it is not a coincidence that the binoculars which are perceived as producing the greatest depth of field, also produce the flattest field of focus. This is because depth of field and flatness of field are easily conflated. Both the Fujinon 7x50 FTM-SX, and the Nikon 7x50 Prostar...
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    Found a Swift Vulcan 7x35 Model 718

    I found this, and thought it might be worth sharing: “Fuji Photo Optical Co. Ltd NATIONALITY: Japanese Part of Fuijifilm Global; created through the takeover of Enomoto Kogaku Seiki Manufacturing Co., Ltd (circa 1944); currently known as Fujinon Corporation.” Enomoto Kogaku Seiki Manufacturing...
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    Found a Swift Vulcan 7x35 Model 718

    Thank you, Bill. I don’t think I asked my question as well as I might have. Not only did Fuji (NOT Fujinon!) use 2 different size prisms, but the larger of the two prisms is asymmetrical. The hypotenuse side is wider on one side, narrower on the other. This asymmetry in a single prism is...
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    Found a Swift Vulcan 7x35 Model 718

    Very much appreciated, Bill. So, these were manufactured by Fuji Sbashin Koki Co. Ltd (JB-8) which I now know IS NOT in any away affiliated with Fujinon (a brand name used by Fuji Photo Film Co., Ltd, now known as Fujifilm). I greatly appreciate your pointing that out. I wish I could go back and...
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    Found a Swift Vulcan 7x35 Model 718

    Hi, Bill. Thank you so much for sharing your knowledge on this topic. It has been my understanding that Swift contracted Fujinon to design and assemble the optics in this, and several other binoculars (as did Bushnell, most famously with the RangeMaster). It has been my understanding that the...
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    one of the most beautiful binoculars in history

    I understand this is an old thread, but I only recently acquired a Sears 6287-A (Jb56). I’m unable to accurately quantify it’s field of view, but it is noticeably wider than even my “Neiman Marcus“ brand “Extra Wide Angle 13 degree” (claimed) jb146 binocular. The 6287-A incorporated a lens...
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    Found a Swift Vulcan 7x35 Model 718

    I happened upon a Swift Vulcan 7x35 Model 718 (FOV=525 feet) made by Fujinon, presumably in the late 1960’s. I know there aren’t many of these floating around, so I thought I might provide some first hand observations. FanTao called them a “Little Jem”, and I can see why. While not quite as wide...
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    Vintage Binoculars

    Hi, Brad. You may find some helpful clues here: https://www.birdforum.net/showrthread.php?t=189055&referrerid=31246
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    Need Help With B&L Discoverer Porro 10x50

    Problem solved. It unscrews, but requires a bit more torque than I expected. The screw head is covered by the decorative emblem, so I resorted to unscrewing the entire cap/emblem/screw assembly.
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    Need Help With B&L Discoverer Porro 10x50

    I was hoping someone might assist me in snugging down the ocular arms on a Bausch and Lomb Discoverer 10x50 Porro binocular. Before making this simple adjustment, I wanted to confirm that the embossed decorative cap between the oculars unscrews (as opposed to being pried off like a bottle cap)...
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    Vintage Binoculars

    I have a Hartmann 8x30 Porlerim Weitwinkel (Essentially, Wide Angle). Mine is badly fogged, so it will be visiting Mr. Suddarth sometime soon. It is my understanding that the Bernina is a newer model, with lens coatings. I don’t know whether the glass or construction was changed, but the...
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