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Sunday 13th September 2009, 22:15
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#1 |
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Registered User
Join Date: May 2009
Location: Québec
Posts: 59
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porro vs reverse porro
Is there any disavantage of reverse porro over porro? Less 3D perception? Because technically, the advantages, disavantages over roof should be the same.
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______________________________________________ Si certaines personnes peuvent te faire croire des absurdités, elles peuvent te faire commettre des atrocités. |
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Sunday 13th September 2009, 23:41
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#3 | |
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Registered User
Join Date: May 2009
Location: Québec
Posts: 59
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Quote:
__________________
______________________________________________ Si certaines personnes peuvent te faire croire des absurdités, elles peuvent te faire commettre des atrocités. |
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Monday 14th September 2009, 00:36
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#4 | |
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Registered User
Join Date: Aug 2007
Location: Kentucky, USA
Posts: 418
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Quote:
...Bob Kentucky |
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Monday 14th September 2009, 00:47
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#5 | |
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New York correspondent
Join Date: Jun 2004
Location: New York, USA
Posts: 2,168
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Quote:
The prismatic binocular's first advantage is that it allows for a greater FOV than a galilean field glass; the second is that folds the light path, making for shorter telescopes. Zeiss received its original patent for placing the objectives farther apart than the eyepieces, providing a stereo effect. However, in the 1920's Leitz and Zeiss both put out reverse Porro binoculars of low power. Unlike opera glasses they provided a wide field of view and were supposed to make viewing theatre with painted backdrops more realistic. Happy bird watching, Arthur Pinewood |
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Monday 14th September 2009, 15:59
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#6 |
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Corvus brachyrhynchos watcher
Join Date: Jan 2007
Location: Lake Michigan Watershed
Posts: 939
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Among my binoculars i have 2 reverse porroprism ones, both for me are special purpose ones.
Bausch & Lomb Audubon Custom 7x26 (now called the Bushnell Elite 7x26). Arguably (and in independent reviews) the best compact around, optically. Pentax Papilio 8.5x21. Use these for insects, primarily ants. focus to 18 inches. At closest focus they actually hit 10x. Outstanding (well, unique, no competition yet) binocular field magnifier. Very poor at normal viewing distances, in my experience. Like both. |
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