Re: UK traffic cameras without film

["Willem-Jan Markerink" <w.j.markerink@xxxxx>]

On 17 Mar 97 at 17:29, Marcel Volkerts wrote:

> My experience is that cars are always photographed from 
> the back, after having firing some "you are speeding" 

I do hope you don't count on this, not even in Holland, and not even 
from the same-side road situation. I also thought both rear-flash and 
same-side situation were absolute requirements, but they once flashed me 
in the face from the other side nonetheless. And yes, a ticked 
followed.
In Germany a picture of the driver is required to make any ticket 
even legal, and the same thing might apply to the UK.
It's not always a red flash, but I know of tickets, with added 
picture (look Mom, that's me!) that the offender wasn't aware of (why 
didn't they tell me, I could have smiled instead of poking in my 
nose!).

> sensor so using SFX like films would at best give you an 
> impression of the drivers haircut. Besides, 
> photographing a reflecting license plate on a car on a 
> lit way and a driver in a dark car would require a film 
> that is capable of handling quite an intensity range. So 
> I don't buy that story Russ, sorry, but thanks for 
> taking the effort to explain.

One other argument is that of haze/fog penetration. You don't want 
this cash-generator malfunction in bad weather. In the UK and Holland 
that would cause a painful lack of funds.

Btw, license plates are also extremely reflective in IR, same as many 
retroreflective surfaces (bicycle tires, safety jackets etc). Tried 
that once with a night vision tube, staggering reflection, IMO even 
more pronounced/higher contrasts than in visible light. 



 
--
Bye,

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      The desire to understand 
is sometimes far less intelligent than
     the inability to understand


<w.j.markerink@xxxxx>
[note: 'a-one' & 'en-el'!]

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End of INFRARED-PHOTOGRAPHY Digest 240
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