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Why use a red filter.

Discussion in 'Anything Airgun Related' started by Honest Bob, Dec 27, 2013.

  1. Honest Bob

    Honest Bob Big Poster

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    I use a cree torch, on my guns. Please could someone tell me why a red filter is used by some people. ie, what is its purpose.
     
  2. SteveO

    SteveO Top Poster

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    It's thought that the red spectrum of light is less visible to animals such as rabbits and less likely to spook them in the field.
     
  3. Honest Bob

    Honest Bob Big Poster

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    First of all SteveO R10, Thanks for the reply. Does any one have any practical experience, ie, do they work.
     
  4. sillygarry

    sillygarry Posting Addict

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    yes they do work but swop and change i use a greenlaser designator on my rabbits ,when they get spotted they think they are robbie williams and smile back at you :D but for rats it has to be ir nite vision its the best option
     
  5. nick2

    nick2 Keyboard Hero

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    On ground that has not been overshot, I have found that rabbits will sit quite happily under a red lamp.Rats do to start with, then they soon wise up.
     
  6. terry1001

    terry1001 Major Poster

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    Adding filters to white lights is not a very efficient way of getting coloured light as they reduce the light intensity a lot, the only benefit is that they may be a cheaper way of doing it. If you want good performance and range then you are better off with a torch using coloured leds.
    Animals do not see things in the same way that we do which makes it more difficult to understand what is going on, they rely more on spotting movement than noticing colour or depth perception. Of course they have highly developed senses of smell and hearing so the ways they are alerted to danger are very different to ours.
    Most animals do not see much at the red end of the spectrum, they have eyes which are more sensitive to shorter wavelengths of light down through green to blue and even into ultra violet but they are more likely to be startled by a light being waved about, casting shadows, than a steady light of any colour. It is probably important to use the minimum light intensity that you can get away with and to scan slowly and carefully. It helps if you have a torch with a zoom facility (so that you can widen the beam to reduce intensity) and also variable power settings as well. If you scan from near to far you should be able to pick up eye shine in the edge of the beam, only putting the centre of the beam onto the target when you are ready to take the shot.
    Even high intensities of infra red light can spook the quarry so the same methods should be used, use minimum light and don't wave it about.
     
  7. Happy Grumpz

    Happy Grumpz Engaging Member

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    Good advice from Terry.

    i have 3 torches, a Led Lenser with a filter kit which was about £60, the filters kill the torch. I also have 2 modified Ultra Fires from Terry that cost half the price of the Lenser and out shine it by at least 3 times.

    My pal has a un modified Ultra Fire and again, Terry's modified version leaves it for dead!

    id like to add that I've found that if the rabbits start to bolt a quick left/right/left/right shake in front of the rabbit often stops it dead in its tracks, long enough for a shot.
     
  8. essex sniper

    essex sniper Banned

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    Even though filters do reduce the light beam but I prefer that .when I lamp I only want enough light to give eye shine
     
    walter Often likes this.

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