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10x43, 8x43 or 7x36?

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/25/2010 at 20:40
westrn View Drop Down
Optics GrassHopper
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For hunting in the southeast. Zen ed2. I recieved the 10x43 today. Trying to decide.
Leaning toward the 8x43 for low light.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/26/2010 at 08:16
tpcollins View Drop Down
Optics Journeyman
Optics Journeyman


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The exit pupil on the three you listed are:  4.3,  5.375,  &  5.14.
 
I'm not sure what noticeable difference you'll see comparing the first one to the other two. That said, the other morning I was hunting and comparing my Zeiss Victory 8x42 (5.25) to my 8x20 Ultravisions (2.5) well before legal shooting light (in the snow) and the difference was amazing. With the larger Zeiss exit pupil, it was as if somebody had turned the lights on outdoors. I have a Leupold Gold Ring 8x32 (4.0) and I'll compare them one day this week against the Zeiss to see if a 1.25 exit pupil difference is noticeable.  
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/26/2010 at 09:21
RifleDude View Drop Down
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I'd go with the 8X43.  To me, 8X in a binocular with 32mm - 42mm objective provides the best compromise between enough magnification for distant detail, sufficiently wide FOV, good low light performance, good depth of field, and relaxed viewing.  I believe an 8X42/43 is the best "all-around" hunting binocular config, although I'm partial to high end 8X32s for their compactness without giving up much performance to the full size binos.
 
If you are hunting out west where viewing distances can be much further, a 10X42/43 can be a good choice, though 10X demands that you steady the binocular better to take advantage of the additional magnification.  However, you aren't handicapped much with an 8X there either.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/26/2010 at 13:10
Klamath View Drop Down
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If you are just looking strictly for SE, I'd say the 7x36, unless you are shooting across big soybean fields etc.  But for distances out to a couple of rifle shots distance, the 7x36 is where I'd go.  I use the 7x36 and 10x43 ZEN ED 2 as a combination, but the 7x gets 80% of the use even out west in the high desert where I hunt.  I simply do not see enough of in image size loss with 7x over 8x that it makes any difference to me.  What the 7x does have over the 8x is a deeeper depth of focus and a wider fov, which make a very nice combination to my eye, being preferable to the 8x.
 
Lots of people like the 10x for distance, but that magnification selection is largely a personal deal and you have to sort that one out for yourself.  Personally, if 7x is not enough, 10x only "may be" enough to get more detail, but really I need to go 15-20x with big eyes or a spotter to get enough more over 7-8x to matter much.  I prefer the wider view of the lesser magnification, and keep in mind that the more magnification you use the greater the strain on the eyes, so the ability to use a rest or tripod may be useful.
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