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40mm vs 50mm

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/27/2007 at 17:09
brandon327 View Drop Down
Optics GrassHopper
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In my looking for a new scope for my remington model 7 300 SAUM I find that there are more options in the 40mm. I kind of like the option of being able to mount it lower on the gun and the scope being more compact. But I was wondering what is the advantage of the 50mm over the 40mm.

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/27/2007 at 18:22
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Optics Master Extraordinaire
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GOOGLE NINJA

Joined: August/30/2007
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The 50mm has little advantage over the 40, 42 or 44 mm`s........The 50`s are more money, higher profiles which don`t look as good, and somewhat heavier. There is perhaps a small difference in better light transmission from the larger objectives, but not enough to make a difference whether or not you fill your tags!!............... 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/27/2007 at 21:44
brandon327 View Drop Down
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Tell me if i am wrong but i would think a 40mm with a 30mm tube would bring in more light than a 50mm with a 1in tube. I would think only so much can get through no matter what you bring in. I would also think that the tube would be like a funnel the bigger it is the more you can get through at a time.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/27/2007 at 21:51
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OT TITAN

Joined: December/22/2006
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i would buy higher quality glass than worry about the size of the tubes and objectives, better glass cannot be substituted for no matter how big the tube or objectives are. a scope thats a 1" tube with 40mm objective would probably bring in more light than a cheapo scope with a 56mm objective.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2007 at 00:26
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Optics Journeyman
Optics Journeyman


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Hi

 

the scope diameter has nothing to do with it's light transmission.

The innerdiameter in the scope when all the mechanics is counted of is betwen 7-12 mm.

I like big objectives, and if big objectives is combined with farily long scopes the mounting could sometimes be as low as a small objective.

 

Regards Technika

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2007 at 00:31
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Dark Lord of Optics

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There is some good info in the FAQ:

http://www.opticstalk.com/forum_posts.asp?TID=3828&PN=1


Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/01/2007 at 22:05
brandon327 View Drop Down
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I am now contemplating between a Leupold 3-9x40 VX II or a 3-9x50 VX II. What is the advantage of the 50 over the 40.

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/02/2007 at 08:50
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Conquistador!!

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Ability to use slightly higher power without exceeding exit pupil size. Very little difference however and mounting height - weight - and cost may outweigh this difference. I view 42 - 44mm as a very good compromise when available.....close to the best of both worlds.

    focus
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/02/2007 at 10:21
brandon327 View Drop Down
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I am an optics dummy what is the exit pupil size? Is that field of View? What about in low light situations? Such as hunting at dusk and dawn?

Edited by brandon327
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