Outrun A Scamera?
Discussion
havoc said:
Flat in Fifth said:
The approval covers the measurement of vehicle speeds up to 155 mph.
So, if you drove past a camera at 180mph, would you escape a fine and ban ?
Hmmm...lets see - the GATSO takes two photos. In one, there's a car. In the other, there's just this cloud of dust raised by it's passing.
That might just count as evidence of a silly speed!!!
But wouldn't there be a speed too fast for the camera to get a clear picture in the first place? I mean, tere must be some limitations on shutter speed...
In daylight with a GOOD lens, you can expect a minimum shutter speed of 1/1000th of a second.
Lets say 178mph...288km/h. =4.8km/minute =80m/s
In 1/1000th of a second, the car will have travelled 80/1000 = 8cm.
I suppose you COULD get a blur from that, but as the movement would be all in the direction of the lens, blurring would be minimal (if it was tangential, you'd just see a blur!)...so you'd still be able to read the plate. If the 2 photo's are 1/10s apart, that will give an 8m distance travelled...not enough to get out of shot.
Any photography experts know any better on GATSO shutter speeds and time between photos???
Lets say 178mph...288km/h. =4.8km/minute =80m/s
In 1/1000th of a second, the car will have travelled 80/1000 = 8cm.
I suppose you COULD get a blur from that, but as the movement would be all in the direction of the lens, blurring would be minimal (if it was tangential, you'd just see a blur!)...so you'd still be able to read the plate. If the 2 photo's are 1/10s apart, that will give an 8m distance travelled...not enough to get out of shot.
Any photography experts know any better on GATSO shutter speeds and time between photos???
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