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    Bushnell Rangemaster: Vintage Binocular vs. Modern Birds

    Steve, I measured the TFoV of my FPO Bk7 Rangemaster yesterday evening at 10.3* to 10.4*. So it would appear that the FPO Bk7 and BaK4 Rangemasters have the same TFoV. Graham
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    Bushnell Rangemaster: Vintage Binocular vs. Modern Birds

    Steve, Of the binoculars in your list I only have the Tasco 400 and a Bk7 FPO Rangemaster but I should receive a Cory Suddarth reconditioned Bak4 FPO CF Rangemaster within a few days, apparently this particular glass is a very good example of its type. I'll measure their TFoV using the angle...
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    Bushnell Rangemaster: Vintage Binocular vs. Modern Birds

    Steve, Have you measured the TFoV of your wide angle 7x35s? My experience is that the actual TFoV is typically 0.5* - 1.00* less than that claimed on the prism plates. Graham
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    Bushnell Rangemaster: Vintage Binocular vs. Modern Birds

    Henry, Ok - I have several vintage 7x35s and will write a short comparative report on their various merits etc when I have time later this year. How is the cement in the objectives and oculars holding up? Thank you again for the clarity and comprehensive nature of your report. Graham
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    Bushnell Rangemaster: Vintage Binocular vs. Modern Birds

    Henry, Excellent report - very interesting reading - thank you. In your view, how does the Rangemaster's quality compare to other wide-angle binoculars of the same vintage? Graham
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    Bushnell Rangemaster: Vintage Binocular vs. Modern Birds

    Simon, I will also be very interested to read your comparison. I have an FPO Bk7 here but my FPO Bak4 is out on loan for another few weeks. I should have it back sometime in January when I'll do a comparison. Graham
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    Bushnell Rangemaster: Vintage Binocular vs. Modern Birds

    Henry, Yes I feel sure that's what it must be but I have no idea how many elements it has. Unfortunately, I can't inspect one as I don't have one here at the moment. However, I do have one incoming which should be with me in about 3 weeks. Graham
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    Bushnell Rangemaster: Vintage Binocular vs. Modern Birds

    Henry, Yes, the booster slides over the objective ring. They are 2.5x so yield 17.5x when attached to a Rangemaster. There appear to be at least two variants depending on the method of attachment: one is a push fit held in place by three small rubber buffers, the other is clamped in place by a...
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    Bushnell Rangemaster: Vintage Binocular vs. Modern Birds

    I think that there were at least nine distinct Rangemaster models: FPO Bk7 IF FPO Bk7 CF FPO BaK4 IF FPO Bak4 CF FPO Bak4 silver trim IF FPO BaK4 silver trim CF Tamron conventional-style version Tamron custom-style version, strap lugs attached to prism covers Tamron custom-style version, strap...
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    Bushnell Rangemaster: Vintage Binocular vs. Modern Birds

    Steve Actually the Bk7 and Bak4 FPO Rangemasters are readily distinguishable by the screws - or lack of them - on the prism cover plates. The Bk7 doesn't have them but the Bak4 does. Graham
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    Bushnell Rangemaster: Vintage Binocular vs. Modern Birds

    In a 1952 ad Bushnell claim for the Rangemaster that "All air-to-glass surfaces hard coated" As the ad was placed in 1952 I imagine this applies to the earlier BK7 model, rather than the later high-index models under discussion. Nevertheless it seems to me unlikely that Fuji having fully...
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