Mirage?

Discussion in 'Optics & Mounts' started by Mercator, Oct 12, 2020.

  1. Mercator

    Mercator Well-Known Member

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    Sometimes as I aim through the scope the picture gets blurry, goes in and out of focus. Is that mirage or the scope or eye fatigue?
    This happens with and without Rx glasses. I ruled out fogging the eyepiece and the parallax.
     
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  2. sheepdawg

    sheepdawg Well-Known Member Supporter

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    With me it's called old age.
     
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  3. Oldoutlaw

    Oldoutlaw Well-Known Member Supporter

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    Same with me.
     
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  4. Rifling82

    Rifling82 Well-Known Member Supporter

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    I’m not old :p:p
     
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  5. freefall

    freefall Well-Known Member

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    Then it's called impairment.
     
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  6. primer1

    primer1 Well-Known Member Supporter

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    If it's happening after you have shooting awhile, it's probably eye fatigue. If it happens all the time, you're old.
     
  7. locutus

    locutus Well-Known Member Supporter

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    Sounds like eye fatique to me.
     
  8. Chainfire

    Chainfire Well-Known Member Supporter

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    The older you get the quicker your eyes get tired.
     
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  9. Oldoutlaw

    Oldoutlaw Well-Known Member Supporter

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    Yep, yep. That's the rifle guy! :D:D
     
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  10. OldManMontgomery

    OldManMontgomery Active Member

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    Mirage is a wavy, fade in, fade out sort of effect. If you follow the 'wave' about, there will be a place where the wavy effect goes straight up. At that point you are looking straight into the wind moving the mirage. Mirage is an effect of heat, most seen over dry and hot areas like flat dirt, sand, asphalt or concrete.

    Old age eyes is a failure to keep a focus very long, or achieve one sufficient to formulate a sight picture.
     
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  11. Viking

    Viking Well-Known Member

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    If it's before shooting, as above, otherwise it could be from a hot barrel, I've had this happen to me a few times, what seems to help is slow down firings and open the bolt, set the rifle aside and let cool air going through the barrel help cool it down between shots.
     
  12. sheriffjohn

    sheriffjohn Well-Known Member Supporter

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    From an old guy with decades of eye doctoring, take my advice. Make an appointment with a good opthamologist (M.D. doctor) right quick. You only get one set of eyes. Explain in detail what's happening. Sometimes it's the scope, true enough or it might be heat dissipation or "fatigue". Learned the hard way - sometimes it's a medical problem that, if treated early can be fixed. Serious stuff can come on sudden or so gradual folks dont find out until it's progressed too far.

    Friend had been having a bit of blurred vision, did nothing. Awoke one morning blind in one eye. Not just blurred. Midnight black. Another sees doubles of everything and will for the rest of his life. Take care.
     
  13. Sniper03

    Sniper03 Supporting Member Supporter

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    As most have said too much time focusing on the target through the scope can cause eye fatigue. Or prolonged periods of time shooting. It is as important as breathing to do things correctly to help avoid issues. What I do is until I am on the Scope to shoot I keep both eyes open when I am down on the Cheek Weld to fire a precise shot. For movers I shoot with both eyes open. since I use the ambush method. Mirage usually will not cause the scope to fade in and out. But the wind can cause the bull on the target to fade in and out depending on the heat and wind speed. But as far as effecting the vision through scope it will not. That is usually caused by holding ones breath to long or as mentioned eye fatigue.

    03
     
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  14. Chainfire

    Chainfire Well-Known Member Supporter

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    That is a good point and also very relative to pistol shooting. Sometimes when I am shooting a string, and having a ball, I forget to breathe, and the shot placement shows it.
     
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  15. Les Moore

    Les Moore Well-Known Member

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    It sucks being the same age as old people, don't it ? Probably just eye fatigue.
    Doze off in the hunting stand, yet ? :D