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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/11/2006 at 11:44
rogn View Drop Down
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A few days ago after the legal close of the whitetail season(firearms)(PND-purtyneardark)(5:45PM), I was messing about at the home range and it was fairly past legal and I looked down range at the 200 yd target which was a 10X12" piece of white paper with a dark blue square on it. Using a pair of 10X36 Nikon monarchs I could see the white spot dimly but with enough resolution to see ther blue spot( v v fuzzy). My Nikon 2-7X32 Monark riflescope would reveal the white sheet only on higher magnification, maybe 4X and higher. Occasionaly while viewing with the binoculars the white target would just disappear and reappear. My question is --Is this a function of old tired eyes or is there a optical reason for the disappearance and reappearance. Also why is it easier to see the white target with the higher magnifaication than with the lower inspite of the darker appearance of the overall field? Hope someone can explain all this?? rogn
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/11/2006 at 12:06
Tero View Drop Down
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Nikon 2-7 Monark ?

 

You have been pretty hard on your eyes in that situation. Not surprising. I have trouble looking at close objects with porros. My eyes play tricks on me, not with roof prisms.

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/11/2006 at 15:25
Roy Finn View Drop Down
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There is a gentleman named "koshkin" here that can explain this to you in great detail. Don't fret, your eyes sound like they are functioning normally. In short, the higher magnification benefit utilizes what is known as "twilight factor" to allow you to see objects better through the use of magnification. This can be a very long debate regarding what is known as twilight factor vs. relative brightness, magnification vs. exit pupil. I will stop here, cause as I stated, koshkin is the most qualified to answer this question. Fortunately, you are dealing with similar glass quality so the answer is somewhat less complicated, the bino vs. riflescope, or stereo vs. mono vision.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/11/2006 at 17:23
Tero View Drop Down
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Ah, the 2-7 is a rifle scope. Duh. Sounds like ther is an explanation.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/11/2006 at 18:27
rogn View Drop Down
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Sorry its a 2-7X 32? variable, same pricing class as the binoculars. Or perhaps better stated as the same merchandizing class as the binocs.

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