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Set up & upgrade help please

Discussion in 'Night Vision Optics and Illumination' started by audiguypaul, Apr 12, 2014.

  1. audiguypaul

    audiguypaul Donator

    Messages:
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    Location:
    Warminster
    After finally sorting my battery woes out i managed to get the rig out for its maiden voyage and have some questions i hope you more experienced guys can answer.

    1. How/what order do you set the focus up between the camera and the scope, what zoom numbers do you use, ive got a 9-22mm manual focus lens on the camera mounted on a Mamba Lite.

    2. My rig uses a 480TVL 1/3" SONY Super HAD CCD II Color Camera Board, whats the next step for picture quality & distance and is it worth changing without spending a fortune.

    3. My IR source is a non zoom 501 with an a convex lense from dx.com, and the silver reflector has been sprayed matt black. I have a zoom version from dx.com on its way but thats probably been lost/blown up along with the battery it was ordered with so will order another.

    4. The drop in is this 3w one also from dx.com and wondered if its really good enough or do i need an upgrade or will a zoom 501 make much difference.

    http://www.dx.com/p/glass-optics-for-flashlights-28mm-5297#.U0jUgKKtIuQ

    http://www.dx.com/p/high-powered-3w...02b-style-flashlights-8-4v-12625#.U0jTEKKtIuQ

    Thanks guys
     
  2. Chippy1988

    Chippy1988 Busy Member

    Messages:
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    Location:
    Eriswell, Suffolk UK
    I currently use a 5-15mm lens on my night vision, I focus the picture off the scope then attach the camera to my mamba lite. I use it on 4x I usually have to unscrew the occular focus (nearest to eye) about two and a half turns to focus the reticule on the screen. I use a t20 from ian on the nightvisionforumuk some people would argue this is overkill as I was watching muntjac at over 100 yards last night. If you are only using the camera at night it would be benifical to remove the ir filter, this in itself should gain you some more distance.

    hope this helps

    James
     
  3. audiguypaul

    audiguypaul Donator

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    Location:
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  4. terry1001

    terry1001 Major Poster

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    As it's an add on I like to keep the scope exactly as it is used for day shooting. My own preference is to use lower magnification on the scope and to regain some of that by using a slightly longer focal length camera lens. With these cheap lemses it seems to be a good to avoid the extremes of the zoom range as they can become difficult/impossible to focus. I find that setting the camera so that there is about 38/40 mm between the rear glass of the scope and the front glass of the camera works for me.
    To set the camera up it makes sense to do it in the dark if you can, point the scope at a blank wall or cloudy sky such that you can still make out the reticle, set the camera zoom just short of maximum and lock it in place. Adjust the focus until the reticle is pin sharp and lock that, if you're looking at a wall you can use some ir but a small amount of light pollution is usually enough. It helps if the gap between the scope and camera is covered, enclosed in a tube etc to prevent stray light getting into the camera.
    If you want to upgrade the camera then the sensible step is to the E700, it is more than the cheaper Chinese stuff but does offer a real improvement.
    The illuminator could also be improved (http://www.airgunforum.co.uk/forums/showthread.php/177909-Infra-red-and-visible-red-torches-for-sale)
    The 3W drop ins are not ideal as they can#t be focussed very well behind an aspheric lens due to their size, the best option is the Oslon Black.
    The camera ir filter is a piece of glass over the sensor and it is usually a pinkish colour, there's lots of info on here about removing them but it can be difficult on some cameras.
     
  5. audiguypaul

    audiguypaul Donator

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    Location:
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    Well ive removed the ir filter so will see how the camera performs like that before upgrading it, but i think i will have one of your torches though Terry, i'll drop you a pm.
     
    Last edited: Apr 12, 2014
  6. terry1001

    terry1001 Major Poster

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    Getting rid of the ir filter does usually give a useful increase in usable range. Its only purpose is to provide colour balance in daylight, because the sensors are very sensitive to ir light the colours look very strange if some of the ir is not removed. The other effect in daylight without a cut filter is some slight out of focus fringing which makes objects slightly blurry. None of this is important ina unit used only at night but can be a consideration if you're building a scopeless sight for both day and night use.
     

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