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OSD question

Discussion in 'Night Vision Optics and Illumination' started by Alex.mc, Feb 21, 2014.

  1. Alex.mc

    Alex.mc Busy Member

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    Once again, forgive my ignorance, but I've been looking at some cameras with OSDs and noticed that a number of them have the OSD control(and I assume module?) built into the leads before they split for power/video etc?

    Does this mean that the OSD is an add-on? And can they be retrospectively applied to a camera without one?
    Are they available on their own? And are they availaible on boards and inline?
     
  2. some bloke

    some bloke Busy Member

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  3. terry1001

    terry1001 Major Poster

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    The menu system is part of the chipset and nearly all cameras that have this facility will come with the osd controller. Sometimes the controller is separate, it may be on a separate board with a lead to plug into the camera board, and more often is inline with the power/video lead.
    If you have a board without the controller but it does have the correct chipset and a socket on the board you could make up a controller or use one from another camera. I haven't seen the controllers available ontheir own. If you're going to make one then you would need to know the connections which might not be so easy to find out.
    The chances of being able to retrofit one on a camera which has the facility are slim and if it doesn't have the right chipset it's impossible.
    It is useful to be able to make adjustments to the camera settings for night vision applications so it is worth buying a camera with the osd menu rather than saving a few pounds on a very basic model. Some cameras, such as the watex, have dip switches to alter settings instead of the osd.
     
  4. Alex.mc

    Alex.mc Busy Member

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    Thanks gents, some interesting stuff there!


    As you say Terry, it would probably be a bit of a lottery to retrofit OSD via the boards and cameras route.
    The Crosshair generators are interesting? They look a little crude, but no worse than the crosshairs you can generate via privacy in OSD. I guess we're used to the fine etched reticles that we see in scopes now?

    I've got another question!

    If one creates a scopeless set-up, and uses a fixed lens with an HD camera that has OSD controls for digital zoom, Could I use a fixed lens for a minimum magnification with an OSD privacy crosshair, and use the digital zoom to create a higher magnification and retain some modicum of Zero? At least perhaps the same zero when un-zoomed with perhaps a slight change in zero(predictable) when zoomed?
     
  5. weebster

    weebster Posting Addict

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    Last edited: Feb 21, 2014
  6. some bloke

    some bloke Busy Member

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    There are two separate crosshair solutions available with the EJ230.

    The black is the privacy zone generated one and the small white one is a plus sign used in the camera title - both are positionable too.

    https://www.youtube.com/watch?v=fRbc28WkWsE
     
  7. terry1001

    terry1001 Major Poster

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    There is a generator made by a guy named Igors who sells on ebay. They are customisable and adjustable. My Internet is down so can't post link.
    Much better than osd type.
    You can use some digital zoom maybe 2 or 3x if lucky.
     
  8. Tech-Hunter

    Tech-Hunter Well-Known Member

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    I emailed Igors, he's on a business trip at the moment but he says he will make some more for sale via eBay in the next week or so! They look pretty useful, and at a decent price think it was £30ish but not 100% on price.
     
    Last edited: Feb 23, 2014
  9. Tech-Hunter

    Tech-Hunter Well-Known Member

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  10. Tech-Hunter

    Tech-Hunter Well-Known Member

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    Some bloke, I may borrow your idea. Could save me a few ££ that, nice one mate.
     
  11. Alex.mc

    Alex.mc Busy Member

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    The crosshair generators look very useful! And they are a very decent price too!

    Regarding the digital zoom, 2x is probably enough? If you had a fixed lens equivalent to 5x like the pitchblack for example, then 2x would give you perhaps the equivalent of 10x which should be more than enough?

    I'm just theorising that digital zoom could perhaps be used as a distant spotting system? Maybe scan the field lines with a decent ir source, and if you pick up something that might be eye shine, then you could zoom in digitaly to confirm it and then stalk closer?
    Realistically at night one wouldn't attempt a shot at more than 35/40 yards max, so the low magnifications will be fine for that, but the ability to zoom to spot without ruining your zero would be helpful?
     
  12. Tech-Hunter

    Tech-Hunter Well-Known Member

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    I need to get the dimensions off him as space is at a premium in my build. (if the main board is longer than 63mm I'm outta luck).
     

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