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Is there a term for this?

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2009 at 04:16
jetwrnch View Drop Down
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Some scopes apear to have thicker tubes/bells than others when sighting through. I.e the Elite 4200 has a lot of scope around the lens where as a Leupold does not. I'd like to see a scale of scopes based on this one factor if it exist. Drives me nuts feelin' like I'm looking through a water pipe.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2009 at 07:04
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I have an Nikon Monarch UCC 2-7x32 and it has a very small sight picture with a lot of black around the view. Yes it does look like your looking through a tube. Most scopes have this but if the sight picture is big enought it doesnt bother me too much, I think Bushnell Elites have a slightly bigger and more comfortable view than the older Monarchs. Sightrons have a bigge view and have an image that comes out almost to the Eye piece rim but they also have very critical eye relief.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2009 at 20:27
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What you are describing is referred to as "tunnel vision" or "tunnel effect."  Many scopes in all price brackets show this effect to some degree, especially at the lower end of the power range.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2009 at 21:26
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If you want almost none of this effect, get a Swaro, the image appears to go edge to edge, in your site picture, it is a thing of beauty.

The "tunnel effect" is, more or less, when the image seems to pull back into the tube when you lower the magnification.  Many scopes do this to some degree, it isn't a problem unless it bothers you (it bothers me!)  Some scopes do it on all power setting, that really bothers some.



Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2009 at 21:35
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I thought they called this the "Tasco Effect"......
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2009 at 21:37
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Originally posted by Roy Finn Roy Finn wrote:

I thought they called this the "Tasco Effect"......



Play nice!
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/29/2009 at 10:32
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to me[maybe i'm the odd one out here?] having a little black around the edge of the sight picture actually makes for more comfortable viewing. you feel like you can see all the sight picture. i've looked through scopes that had none of this, and to me that was not as comfortable.made you feel like you had to creep forward to see around the edges like kids do on a tv show!???
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/29/2009 at 11:56
cheaptrick View Drop Down
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Originally posted by RifleDude RifleDude wrote:

What you are describing is referred to as "tunnel vision" or "tunnel effect."  Many scopes in all price brackets show this effect to some degree, especially at the lower end of the power range.
 
I believe this forum coined that term, but as mentioned, many scopes have this, some Nikon's in particular.
Doesn't bother me as much as a scope with a drastic variable eye relief, like some Leupolds I've used.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/29/2009 at 12:03
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Ever look through one of the older Swarovski's. They were some of the worst. I had a 3-12X56 which was tunnel visioned until you got it cranked up to 6 power or better. The new ones have none. Can be annoying though. Choose and purchase wisely.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/29/2009 at 12:05
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I have a Swaro 3-10 AH and it is beautiful from 3 to 10X, no tunnel at all - the image goes edge-to-edge; looking through the scope, it's all reticle, no tube.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/29/2009 at 12:34
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Many times this can come from having the scope mounted to far back on the rifle. First test is to move your head forward and back on the rifle. If the tunnel vision goes away at some point then the scope may need to be adjusted in the rings for your head position. Many people crawl up on the scope and this will cause the tunnel vision to appear. This is not true for all but it is many times. When a shooter gets a gunsmith to mount a scope the smith mounts it usually for his shooting stance. Rarely will it be the same for the gun owner.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/30/2009 at 12:11
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I know exactly what's being described. Really irritating to me, especially when varmint hunting. That's why I'm getting rid of my 2 Nikon SF Buckmasters. For replacements, I'll check out Grandslams and maybe 4200's first, although it sounds like to some even the Elites are guilty of the problem.
Wonder if SWFA would refund money on a never-mounted scope if a purchaser wasn't satisfied because of something like this?
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