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camera help!

Discussion in 'Night Vision Optics and Illumination' started by suffolkshot, Jan 18, 2014.

  1. suffolkshot

    suffolkshot Well-Known Member

    Messages:
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    Location:
    Suffolk
    Hey guys...right, its time for night vision!...been reading up for a while, and money is very tight, so I think Im gonna start with camcorder and t20 illuminator with 66mm lens conversion...

    The cam I have secured is a sony IP55 handycam...Does anyone know what sort of distance I can expect with this rig? Cheers! :D
     
  2. merjp

    merjp Active Member

    Messages:
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    Location:
    Maghera Northern Ireland

    I don't know this particular handycam and its characteristics. All handycams have an IR cut filter either attached to the sensor or as part of the lens assembly. If you can disassemble and remove the IR filter then you will get much superior performance. I would expect to see eyeshine out to 100m and be usable to 50m+. However if the filter is not removed then those ranges will be reduced quite a lot. The range also depends on how much IR illumination you are using and whether it is widely spread or focused down. The T20 is a nice little torch and again there can be different power IR LED installed in them so that is also an unknown. If at all possible, remove the IR cut filter and you should get quite usable range.
     
  3. SavTheSav

    SavTheSav Active Member

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    Location:
    Taunton, Somerset
    Last edited: Jan 28, 2014
  4. genisis22

    genisis22 Engaging Member

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    Location:
    bristol
    hi bud, the second post is nearly right it does have ir cut, but it is mechanically moved out the way of sensor when nightshot switch is moved, all good ,but be carefull if you have,nt bought torch as yet, some of these cams like the ir at 808nm and dont see 850 so well try and check sony web sight for the output of on board ir and match it if possible, fit it behind a scope with at least AO up front preferably side wheel , when fitted focus up on ret only then fine tune image with AO/side wheel, the set up should be more than acceptable for air rifle range and remember the focusing will be different at night to daylight, look on utube for cubblycat vids it will show you the way see this vid and check out others
    http://www.youtube.com/watch?v=xu12Y_SDEBA
     
    Last edited: Jan 30, 2014
  5. weebster

    weebster Posting Addict

    Messages:
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    Location:
    Nr Southampton,hampshire
    The problem with cam-c's is they were not designed with any great range in mind,therefore the sensor is not as sensitive to ir at range than the cctv board cams,in order to get range it requires a lot of ir led 850nm or more concentrated lower ir nm like a laser which do seem to work best with cam-c's,downside is a decent one is 3 times the cost of a bog standard T20,there is also the clarity issue with sub £200 laser's,the 2 better ones being the n1000ap or older pulsar L808,not the L808s model.
     

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