Idea

[The Stranger:Me]

A mate assures me that at 200kmh+ the cameras wont get you. Recons it is to do with the timing and the exposure etc. But I have not been game to verify this though.
Knowing the guy, I am sure he has.

[zooter]

If enough people got them they would mod the cameras to flash you a couple of "redeye reduction flashes" to dejuice your counterflash and then snap you.

[Slingshot]

It would work and it would be a piece of cake...I considered doing it many years ago but never got around to it.

First the theory...when it's dark and a camera takes a photo using the flash, the exposure is controlled by the length of the flash, not the shutter speed. Obviously there are limits to this but I can't be bothered going into this in too much detail.
Higher end modern cameras will actually measure the amount of flash reflecting off the film that it's exposing and actually turn the flash off once it's received enough light (ATTL), this is where the problem could come from. To get around it you would need to dump a heap of extra light onto the film to make sure the camera could not adjust in time.

So anyway, either buy or build a slave unit. This is a thing that is designed to trigger a flash when it senses another flash so that you can have more than one flash but no messy cords. Hook em up to 3 or 4 disposable camera flash units, then position them on the bike.

I'll leave the testing to you, let me know if you get a ticket!

[ManDownUnder]

Pin g Big Dave or someone seriously into photography.

I'm sure there's a "flash relay" or something like that (Google didn't help on this one) but I know the photographers use something similar to light up huge objects if they need to trigger multiple flashes all at once for a REALLY big photo.

They detect the flash of light from another flash, and that triggers their own flash to go off...

Sounds like it might do the job?

[dhunt]

Here we are http://www.buyradardetectors.com/pro...lizer-vf2.aspx

Tired of receiving tickets in the mail? The VF2 Photo Jammer actively blocks any system that uses a flash camera to photograph your license plate! This includes speed cameras, red light cameras -- even toll booth cameras.

The VF2 looks like a regular license plate light, and mounts directly above your license plate. It works by using a sophisticated sensor to detect a camera flash or an infrared signal. When either of these are detected, a powerful burst of white light is instantly released downward across the license plate. When the enforcement camera takes the picture, all it will see is the bright light -- the license plate numbers will not be visible!

This technology works against all analog photo traps, all infrared photo traps, and against all digital photo traps in use today.

The VF-2 was recently tested by Speed Measurement Labs (SML) in El Paso, Texas and was found to perform very well. In the SML tests, the VF2 defeated each and every photo attempt in the test!

[N4CR]

That last link sounds like a good idea. Another one would be to put an LCD panel covering the plate that is black when triggered - see through with normal operation and appears to be a normal plate, when any flash/light change is done it triggers for .3secs or so, that even police driving behind wouldn't realise. Not that you would be speeding in that case anyway

edit: that also foxes the whole preflash thing in the future.

Damn I'm good.

[SARGE]

much cheaper alternative....

http://www.kiwibiker.co.nz/forums/sh...1&postcount=29

[Pillick]

haha, dunno about the theory, but I love the name.

[Sniper]

Johnny English: Use you rockets to destroy the offending toll booth.

[Lou Girardin]

GATSO speed cameras will work sucessfully uo to 275 km/h (as tested by Top Gear)
A diffuser lens on a flash unit should give the beam spread needed to blind cameras at an angle to your vehicle.

[thehollowmen]

Ok you are driving at night, barely exceeding the speed limit and BANG out of the blue you are flashed by one of those photographic toll booths.

But you don't worry because you have the CaN Photo Phucker (tm) fitted to your vehicle.

They're known by many names including slave flashes, light triggered flashes etc.

I've got a couple in my hand, from memory they cost about $40 each.

[XP@]

But is there not a theory that speed cameras don't get bikes (can't front on, no plate, but many claim they don't get rear on either). Has anyone ever actually had a ticket from a speed camera (not a cop-stop, but one in the mail)

Yup, had 2 of them...
Not had to pay either though! (was being tailgated in one and the wind was strong and gusty in the other)

[Biff]

Erm - so light directed at your bike, at the speed of light, is detected, then another light, travelling at the speed of light, is flashed back? Hmmm - I can't see it working. Even taking into account any latency in the electromatronic circustree. Love to be proven wrong though.

[Pixie]

Erm - so light directed at your bike, at the speed of light, is detected, then another light, travelling at the speed of light, is flashed back? Hmmm - I can't see it working. Even taking into account any latency in the electromatronic circustree. Love to be proven wrong though.

Why not?
Considering the stuff travels at 0.3 Gm/sec

[Biff]

Why not?
Considering the stuff travels at 0.3 Gm/sec

So - photon particles travelling at 186,000 miles per second (Kmps) leave the camera, they then hit the detector circuit on the bike, the detector circuit then does it's stuff, recognising the particles, processes the information (depending on the design) then sends an instruction to a light source of some description on the bike, activating it, which is then fired back at the camera at 186Kmps.

In this time the initial light source from the camera would have hit the bike and have been relected back to the camera. Would it not? I can't see the detector circuit detecting the light particles, switching on a light source (not a filament bulb - they take far too long to switch on) and then for that light radiating from the bike reaching the camera, in effect temporarily blinding it, before the camera has recorded the initial reflection. And if the bike is moving you also have to consider doppler shift.