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some bloke

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  1. some bloke

    Lenses needed please?

    Hi, first post but not into cctv business so not much point in doing an intro really. I am setting up an in car agricultural night vision pest control system. The planned set-up is two low light camera's connected to a monitor with 2x av in and 2x 940nm IR floodlights mounted on the roof of the 4x4. Camera 1 would be to view the general area and spot rat, fox or rabbit movement on crops, golf course, chicken pen areas etc. Camera 2 will be mounted behind a rifle scope to view the quarry through the crosshairs and fire the bullet at the brain for a humane despatch. I have so far equipped myself with: Two roof mounted Bosch ufled 940nm IR floodlights (1x10 degree + 1x30 degree) A dash mounted 1/2" ccd Watec B/W low light camera - without lens. A 1/3" super had ccd day/night bullet camera with 6mm lense as the scopecam 1x dash mounted monitor. 12V power supplies and phono leads. I'm confused about lenses. I will occasionally be using the kit late afternoons or early mornings but over 90% during the hours of darkness: I have read that since the lighting will be variable day/night, the cameras will lose focus from one light wavelength to the other. So my question(s) finally, are: Do I need IR lenses? Auto or manual iris for the observation area camera please? If a short/wide lens on the scopecam sees unneccessary imaging either side of the rifle scope am I effectively "wasting" pixels or other capacity which is reducing the potential image quality of what is seen through the riflescope? Thanks in advance for any help and please forgive me for not knowing all the lingo.
  2. some bloke

    Lenses needed please?

    You are a gent sir - thank you so much. " title="Applause" />
  3. some bloke

    Lenses needed please?

    Thank you so much Soundy. Another couple of questions if I may please: The 1/2" ccd dash mounted camera has a cs mount. Would there be any more light input if I used a fixed length lense rather than variable? And would a 2/3" lense allow more light through? I should add that I am after the best possible image to help correctly identify the quarry and place an accurate shot at the longest possible range. I'm anticipating the 10 degree IR floodlight should enable me to easily achieve 100 yards.
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