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small Lens size

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rcr22b View Drop Down
Optics GrassHopper
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    Posted: February/10/2012 at 17:33
I see a lot of expensive rifle scopes with small lens size such as 1.5-5 x 20mm.

Or perhaps 25mm.

I always thought that the larger scope lenses like 32, 40 or 50 mm were preferred.

Can anyone explain why these smaller scopes might be better?
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supertool73 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote supertool73 Quote  Post ReplyReply Direct Link To This Post Posted: February/10/2012 at 17:37
This was asked recently in another thread.  This should help shed some light.  http://www.opticstalk.com/topic31665.html
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rcr22b View Drop Down
Optics GrassHopper
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rcr22b Quote  Post ReplyReply Direct Link To This Post Posted: February/10/2012 at 17:54
Thanks, that was a pretty interesting discussion even if it did not settle on just one answer.

But having said all of that I'm still thinking that a larger lens will transmit more light all other things being equal.

Someone correct me if I'm wrong but that has always been my understanding.
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