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cervelo View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cervelo Quote  Post ReplyReply Direct Link To This Post Topic: ? on #'s
    Posted: November/25/2011 at 05:24
New guy here and need a bit of help understanding some #'s. There is a pair of binos I saw and on the focus adjustment dial it had some #'s on them--8.5 X42 ( i understand what those # are) then below that it had 7,6*( with the * actually being a degree symbol , just don't have a degree symbol on my key pad). What are those #'s and what do they mean??

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FrankD View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote FrankD Quote  Post ReplyReply Direct Link To This Post Posted: November/25/2011 at 09:45
That is the field of view tranlated into degrees. One degree is 52.5 feet. So, 52.5 x 7.6 = 399 feet.
Frank
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Post Options Post Options   Thanks (0) Thanks(0)   Quote lucytuma Quote  Post ReplyReply Direct Link To This Post Posted: November/25/2011 at 10:24
Good info Frank, I did not know that. Excellent
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cervelo Quote  Post ReplyReply Direct Link To This Post Posted: November/25/2011 at 10:33
Thanks Frank!!!!!Big Smile
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Steve16 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Steve16 Quote  Post ReplyReply Direct Link To This Post Posted: November/25/2011 at 15:00

That's at 1,000 yards distance ... for those who weren't thinking that already. 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Klamath Quote  Post ReplyReply Direct Link To This Post Posted: November/25/2011 at 20:53
If you want to go metric, there is 17.5 meters per degree of view @ 1,000 meters.  In your example (I'm thinking Swarovski 8.5x42 EL's) the fov will be 133 m @ 1,000 m.
Steve
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cervelo Quote  Post ReplyReply Direct Link To This Post Posted: November/26/2011 at 02:53
Steve--That is the pair I saw them on.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Urimaginaryfrnd Quote  Post ReplyReply Direct Link To This Post Posted: November/26/2011 at 06:28
Good job Frank.

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