How much zoom is a 10×50 on binoculars?

Jul 27 2008

Posted at 4:14 am under Astronomy & Space

osufan asked:

How much zoom is a 10×50 on binoculars? How many x?

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6 responses so far

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mathematicianon 29 Jul 2008 at 4:33 am 1

10x—that’s what the first part of 10×50 means. The 50 is the size of the front lenses in millimeters.
tomon 01 Aug 2008 at 1:14 pm 2

These binoculars magnify your view ten times. The 50 merely indicates the diameter of the objective lens (The big one) in millimetres.
nintendogamer91on 04 Aug 2008 at 12:16 am 3

10x normal vision
jekinon 05 Aug 2008 at 2:58 am 4

The diameter of the lens controls how much light it receives. If the ratio is 7×50 that is considered night vision because they pick up more light than the normal eye. 10×50 is comparable to 7×35 in light gathering. but magnifies. 10x is about the limit for normal people without a tripod.
paypalcuriouson 08 Aug 2008 at 6:42 am 5

The 10x part means whatever you look at will appear 10 times closer to you. The 50 means that each lens is 50mm wide.
campbelp2002on 11 Aug 2008 at 10:39 am 6

Zoom means the ability to smoothly change magnification. 10×50 binoculars have a fixed magnification of 10, no Zoom. The 50 is the diameter of the objective lenses in millimeters.

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