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why 43mm?

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/30/2008 at 14:18
spf2 View Drop Down
Optics Apprentice
Optics Apprentice


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I am just curious why the company comes out this odd ball number 43mm for objective lens size.  I am comfortably happy with 32mm, 42mm, and 50mm. But why 43mm?  Another item for change during the election year? Big%20Smile
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/30/2008 at 17:01
lucznik View Drop Down
Optics Master
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You're comfortable with 32 in a compact glass but, what about 30mm, 33mm,  or 36mm?  Then of course, there are the 20, 22, 25, 26, and 28mm sub-compact glass options.  Full size glass can be had in 40, 42, 43, 44, and 45mm.  "Big-eyes" level glass comes in 50, 51, 56, 60, 70, 80, and 100mm.  I'm sure I may have missed one or more.
 
So you see, binoculars are not as standardized as you might have been led to suspect.   Why do manufacturers do this?  I suspect it has more to do with having a product that in some small way "stands out from the crowd" more than anything else.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/30/2008 at 18:16
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If you look at the numbers having a 43mm objective over a 42mm objective will give you a larger exit pupil.  If it is a toss up well???
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/30/2008 at 20:05
spf2 View Drop Down
Optics Apprentice
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Originally posted by lucznik lucznik wrote:

I suspect it has more to do with having a product that in some small way "stands out from the crowd" more than anything else.
 
Lucznik, it seems to be the case. To differentiate one brand from another. It is probably like 8.5 or 10.5x magnification. I am not sure how 0.5x extra power will help us in real world. But the numbers do set them apart from others.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/30/2008 at 20:54
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It's easier to turn to 11!!  Rocker
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/30/2008 at 22:06
Bird Watcher View Drop Down
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[QUOTE=spf2] I am just curious why the company comes out this odd ball number 43mm for objective lens size. QUOTE]

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