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Binoculars & Spotting Scopes
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Pentax
Binoculars as microscope - Penta Papilio 6.5x21 vs Minox BF 10x42
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<blockquote data-quote="zzffnn" data-source="post: 3243543" data-attributes="member: 133374"><p>Thank you very much Gents.</p><p></p><p>I was asking for apparent field of view (AFOV) and eye relief. Sorry, I was not clear.</p><p></p><p>I forgot that both Orion and Pentax have their web pages for their products. So there are official specs to compare.</p><p></p><p>It looks like the Pentax has AFOV of 49 degrees and eye relief of 15 mm.</p><p></p><p>The Orion 10x42 has AFOV of 59 degrees and eye relief of 17 mm. While the zoom 10-25x42 has AFOV of 24 -33 degrees (I guess 24 degrees for 25x and 33 degrees for 10x) and eye relief of 14 mm.</p><p></p><p>The numbers match with what Jay and Binastro said.</p><p></p><p>Decision is difficult for me. The Orion 10x42 will be comfortable for my eyes to use, but its magnification is just a little more that Papilio (which is probably 7.6x when focuses at 0.5 m).</p><p></p><p>The Orion zoom 10-25x42's AFOV is too narrow for my eyes with glasses, though eye relief looks fine. Probably not very comfortable for me to use, since it is a monocular. The zoom's magnification can be very useful to me though.</p><p></p><p>I probably have to buy both and use the zoom without eye glasses.</p><p></p><p>Sources:</p><p></p><p>Pentax Papilio 6.5x21:</p><p><a href="http://m.us.ricoh-imaging.com/sport-optics/products/Papilio_6.5x21#!product-specs" target="_blank">http://m.us.ricoh-imaging.com/sport-optics/products/Papilio_6.5x21#!product-specs</a></p><p></p><p>Orion 10x42 monocular:</p><p><a href="http://www.telescope.com/mobileProduct/Binoculars/Monoculars/Orion-10x42-Waterproof-Monocular/pc/5/c/73/8431.uts" target="_blank">http://www.telescope.com/mobileProduct/Binoculars/Monoculars/Orion-10x42-Waterproof-Monocular/pc/5/c/73/8431.uts</a></p><p></p><p>Orion 10-25x42 zoom monocular:</p><p><a href="http://www.telescope.com/mobileProduct/Binoculars/Monoculars/Orion-10-25x42-Zoom-Waterproof-Monocular/pc/5/c/73/101451.uts" target="_blank">http://www.telescope.com/mobileProduct/Binoculars/Monoculars/Orion-10-25x42-Zoom-Waterproof-Monocular/pc/5/c/73/101451.uts</a></p><p></p><p>Newer, Barska and Zhumell offers similar 10-25x42 monoculars. I personally won't go with those, as Newer (at $40, 50% of Orion) seems to have focusing issues, while Zhumell and Barska versions have father near focus at close to 5-6 feet.</p></blockquote><p></p>
[QUOTE="zzffnn, post: 3243543, member: 133374"] Thank you very much Gents. I was asking for apparent field of view (AFOV) and eye relief. Sorry, I was not clear. I forgot that both Orion and Pentax have their web pages for their products. So there are official specs to compare. It looks like the Pentax has AFOV of 49 degrees and eye relief of 15 mm. The Orion 10x42 has AFOV of 59 degrees and eye relief of 17 mm. While the zoom 10-25x42 has AFOV of 24 -33 degrees (I guess 24 degrees for 25x and 33 degrees for 10x) and eye relief of 14 mm. The numbers match with what Jay and Binastro said. Decision is difficult for me. The Orion 10x42 will be comfortable for my eyes to use, but its magnification is just a little more that Papilio (which is probably 7.6x when focuses at 0.5 m). The Orion zoom 10-25x42's AFOV is too narrow for my eyes with glasses, though eye relief looks fine. Probably not very comfortable for me to use, since it is a monocular. The zoom's magnification can be very useful to me though. I probably have to buy both and use the zoom without eye glasses. Sources: Pentax Papilio 6.5x21: [url]http://m.us.ricoh-imaging.com/sport-optics/products/Papilio_6.5x21#!product-specs[/url] Orion 10x42 monocular: [url]http://www.telescope.com/mobileProduct/Binoculars/Monoculars/Orion-10x42-Waterproof-Monocular/pc/5/c/73/8431.uts[/url] Orion 10-25x42 zoom monocular: [url]http://www.telescope.com/mobileProduct/Binoculars/Monoculars/Orion-10-25x42-Zoom-Waterproof-Monocular/pc/5/c/73/101451.uts[/url] Newer, Barska and Zhumell offers similar 10-25x42 monoculars. I personally won't go with those, as Newer (at $40, 50% of Orion) seems to have focusing issues, while Zhumell and Barska versions have father near focus at close to 5-6 feet. [/QUOTE]
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Binoculars as microscope - Penta Papilio 6.5x21 vs Minox BF 10x42
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