Sick of speed camera signs

Discussion in 'Australian Motorcycles' started by Robert Brunetti, Aug 28, 2004.

  1. Robert Brunetti, Aug 28, 2004
    #1
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  2. Robert Brunetti

    fred Guest

    $60!!!!!!! What a ripoff. You can do a similar thing with Taft hair spray.
     
    fred, Aug 29, 2004
    #2
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  3. Robert Brunetti

    Robotman Guest

    Does it actually work or is it some fancy photoshopping??

    Robotman.
     
    Robotman, Aug 29, 2004
    #3
  4. Robert Brunetti

    Moike Guest

    Well the number plate itself is highly reflective, so any crappy camera
    with a flash would produce that effect.

    You want to trust your licence to it?

    Moike
     
    Moike, Aug 29, 2004
    #4
  5. Robert Brunetti

    Jeff Guest

    I recall several years ago there was a trade stall doing the rounds of
    the bike (and car) shows selling 'anti-camera' number plates, they
    were at the NEC for the Bike Show and Performance Bikes took a snap of
    the stall with their own high powered flash gun - result? Every one of
    the 'stealth plates' totally legible.
    Also, not sure about the various States/Territiories but UK law has a
    nice little catch-all called "perverting (or attempting to pervert"
    the cause of justice"; in other words trying to do something to allow
    you to get away with an illegal act is, in itself, illegal and
    actually punishable as a higher offence.
    Not that I'm saying someone wouldn't want to give it a go and try
    spraying stuff on their plate as a *ahem* protective coating....
    Me? I just used to have a nice shiny bike with the dirtiest
    numberplate in all christendom. They'll pull you over for that but not
    do you.
    Another one that was handy on the Speed Triple was a rag stuffed into
    the tailpiece and (oh dear) it just happened to have slid out part of
    the way so that it dangled over the plate - ok it waved about in the
    wind but mates following me said that it did cover a portion of the
    plate and unless they could prove within reasonable doubt that the
    registration matched your bike on camera (a snapshot remember, not a
    pursuit) then the case would fall over.

    Cheers,

    Jeffles
     
    Jeff, Aug 29, 2004
    #5
  6. Robert Brunetti

    Deevo Guest

    Hmm, looks like spam, smells like spam. Could it be?
     
    Deevo, Aug 29, 2004
    #6
  7. Robert Brunetti

    geoff_m Guest

    The cameras have a polarised filter to take out the glare. Stuff
    doesn't work
    Geoff
     
    geoff_m, Aug 29, 2004
    #7
  8. Robert Brunetti

    Marty H Guest

    so, all you need then is a polarised filter on your number plate at 90
    degress to camera's filter then?

    all we have to do it work out which way they have their filters. which could
    be one of 360 deferent angles :)

    mh
     
    Marty H, Aug 29, 2004
    #8
  9. Robert Brunetti

    Moike Guest

    Crap

    Given that polarising filters are used to reduce the glare from
    reflections at high angles of incidence from flattish surfaces, how does
    the polarising filter on a speed camera reduce the glare from a flash
    that is pretty at much the same lowish angle angle of incidence as the
    camera?

    Given that the light is reflected mostly from the embedded glass beads
    in the plate, so that the light would be reflected from a wide range of
    internal surface orientations, a polarising filter would have about the
    same effect as tinted glass.

    (I don't believe it works, but I don't think polarising filters have
    anything to do with it.)

    Moike
     
    Moike, Aug 30, 2004
    #9
  10. Robert Brunetti

    jimi Guest

    For what it's worth:
    A mate and I got some of this stuff (a lot cheaper than $60) and tested it,
    using a fairly old Mavica digital camera. Several pictures were taken, with
    and without flash. The number plate was completely illegible when flash was
    used, even in broad daylight.
    When no flash was used, on a cloudy overcast day, the number was partially
    obscured.In bright sunlight it would probably have been even less legible.
    Some of the pictures using flash were of my bike, parked under a tree to
    simulate low light. Oyjhers were of a car number plate, taken from the rear.
    The number plate on the car parked beside the test vehicle was as clear as
    crystal, so the flash didn't create the same effect on an untreated plate.

    To sum up, no I wouldn't trust my licence to it, but as an extra line of
    defence against the money-grubbing scum, it can't do any harm.

    Jimi.

    Try this: http://www.photoblocker.com.au/

    PS I think I've still got the pictures somewhere, if anybody's interested.
     
    jimi, Aug 30, 2004
    #10
  11. Robert Brunetti

    smack Guest

    I didnt go to uni, but wouldn't 180 (insert conehead symbol here) be enough?
     
    smack, Aug 30, 2004
    #11
  12. Robert Brunetti

    Marty H Guest

    enough?


    neither did I...year 10 physics.

    you would only have to rotate your filter 180 degrees to work out which way
    they have their filter ....but their filter could any of the 360 degrees

    I fink that's right??


    mh
     
    Marty H, Aug 30, 2004
    #12
  13. Robert Brunetti

    jimi Guest

    No

    The post was purely for information.

    I don't give a **** if you buy it or not.

    Jimi
     
    jimi, Aug 31, 2004
    #13
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