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ns200 focusing issues. .

Discussion in 'Night Vision Optics and Illumination' started by fletchisbored, Feb 26, 2014.

  1. fletchisbored

    fletchisbored Engaging Member

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    Just brought and ns200 and am having problems with picture quality when on high magnification. Ive got a Bushnell scope which works fine during the day and at night with x2 magnification and ir it is crystal clear. The problem starts when I zoom to x9 magnification the picture is very blurry and all you get is a blurred eye shine and black splodge.

    Ive used search feature and have come up with the theory I need a side focus scope as ir light is different to normal light and needs a different focal plane. Can anyone tell me if I'm right or am I doing something else wrong and should save my money.

    Cheers in advance. Fletch.
     
  2. terry1001

    terry1001 Major Poster

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    As you increase magnification the need for focussing the scope increases - as you have discovered. The easiest type to use is the side focus, the adjuster is more convenient.
    The other possible problem you may get is that as you increase the magnification the amount of light getting through the scope starts to drop off.
    These issues are why I prefer to use a longer focal length lens on the nv camera together with lower scope magnification.
     
  3. SteveO

    SteveO Top Poster

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    Yes I had this problem and had to purchase an AO scope, not a side focus but it solved the problem sufficiently for me.
     
  4. fletchisbored

    fletchisbored Engaging Member

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    Cheers lads, I now have the perfect excuse to buy some nice shiney new glass... well with my budget it may not exactly be new but it will be new to me and thats just as good in my book :)
     

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