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50mm or 56mm ?

 
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  #1  
Old 09-09-2004, 09:02 AM
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50mm or 56mm ?

Thought this would be an interesting discussion.

Looking at Nightforce 3.5-15 and 5.5-22 ...both come in 50mm and 56mm objectives. Which is better and why?
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Old 09-09-2004, 02:12 PM
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Re: 50mm or 56mm ?

50mm. Less is more in objective size..sakofan...44mm, even better.

Coatings/glass have leveled the playing field, IMHO. Big objective scopes are obsolete.
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Old 09-09-2004, 03:38 PM
LB LB is offline
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Re: 50mm or 56mm ?

Oh, maybe not? I'm not throwing mine away, just yet. You still pay a premium for the 56MM objective, and perhaps the deciding factor is the tube size, one inch or 30mm? Another factor is your mission. Top quality optics should allow for almost any situation, during legal hunting hours, without the need of 50 or 56mm objective lenses. Hunting after dark is where the large objectives and 30mm main tubes excell, other than that, they may be too bulky and too expensive? Decide what you want to do and buy accordingly.

Good hunting. LB

edit: high magnification requires more light gathering, also, kind of like an f-stop on a camera.

[ 09-09-2004: Message edited by: LB ]
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Old 09-09-2004, 11:30 PM
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Re: 50mm or 56mm ?

...several things to consider... 56mm would obviously gather more light than the 50mm, with all other things being equal... must consider how important low light performance is vs the extra weight and height of the objective lens... have never felt deprived by 50mm lenses, in fact, prefer 44mm or thereabouts for most live hunting applications... also smaller obj lense puts the scope closer to bore, but I gotta admit, just one look through a large objective and it's really bright... ultimately it depends on the type of rifle it will be mounted on and your own personal preferences... I just love'em all!
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Old 09-13-2004, 09:49 AM
700 700 is offline
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Re: 50mm or 56mm ?

trader388


A similar topic is discussed here:-
http://www.longrangehunting.com/cgi-...c&f=2&t=000789
Link to topic

Regards

700
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Old 09-14-2004, 12:16 PM
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Re: 50mm or 56mm ?

No Need for a 56mm Obj for most applications, a human eye won't notice the difference between a 50mm and a 56mm. I'd go for the 50mm. Optical quality is the issue, you'd be better of with quality x42mm Obj than a crappy 56mm. NXS seem pretty good, you'd be better of with the 50mm.
Pete
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Old 09-14-2004, 05:36 PM
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Re: 50mm or 56mm ?

In theory, with either scope, the 56mm will allow maximum light to reach your eye @ 9.3X, and the 50mm will provide the same amount of light when set on 8.3X.

Under dark conditions when you really need the maximum amount of light (6mm exit pupil) do you NEED more than the 8.3X that the 50mm scope provides? Probably not.

I'll go with the guys who recommend the 44mm objective scopes. They are smaller, lighter, less expensive and provide maximun light when set @ 7.3X. That is MORE magnification than I almost ever use in the field while hunting biggame.

VH
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