Dodging speed cameras....

[gsxrboy]

I have the option to obtain a backflash quite cheaply, do any of you have any information to sway me either way?? I fully understand you can get in a bit of trouble for having one fitted but I think the pros far out weigh the cons.

For those of you who don't know what it is, it's a unit with two camera flash units that are focused on your reg plate, it has light sensors and when a camera flashes at you it triggers and flashes, overexposing the image!

Do you know anything I need to know??

[Ste]

[gsxrboy]

Ste, this is something that worries me, will it flash at bright headlights? I have to do tests but I am hopeful it will be quick enough.

Do you like the bike it on?? I'll swap you for a good quality pack of cigarettes..... I don't even smoke

[Sparks!]

Do you not have a GSXR?

I don't see how the plate flasher will work fully as the speed camera will already have taken the pic, but I don't know really - Technically it should work as the picture you took the number plate was blanked out, but I didn't think speed cameras were meant to flash??
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Current Toys: 06 Yamaha WR250F | Nissan 350Z GT | Tech 4 Homes

[Ste]

Only one real way to tell if it flashes at headlights behind you, and remember it could also flash when cars behind you go over bumps, as that appears in your mirrors like they're flashing you so if the gadget is set to flash if it detects a certain change in light levels then it could do. Also, does it flash in daylight and is it effective enough? I'd want to be slightly more than "hopeful" if I was going to trust that thing to protect my license when going throuh gatso cameras.

Best way to avoid them getting your plate is to make a device which spins your plate around so it can happily take a picture but it just of the back of the number plate. I had one before and I bought it second hand it was made from an old power valve motor, and hooked up to a switch and wired into the battery, I switch the switch and it spun the plate around, switch it again and it went back again, so you would switch it before you got to the gatso and switch it again after you've gone through the gatso.

Do I like the bike? Don't know, just seen the numberplate from it and it appears much like any other.

[Sparks!]

[Ste]

Says the person with them doing a wheelie in their avatar.

[dibbster]

Surely the unit will respond to a change in light levels, i think this would be hard to set up to work in daylight conditions where you are trying to detect a small change in a large amount. (Needle in haystack type analogy) Also the speed camera flash will be directionalised and the time the light sensor would be within the increased light levels would be relatively short (Due to you moving (presumably at high speed)). This would mean you would need fast electronics.
I am not sure I would trust my licence to such a device and think that leaving your number plate at home maybe a simpler and more reliable solution!
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Suzuki RF 600 - The two wheeled Testarossa (Deceased)
Suzuki GSXR - Now stops on a sixpence; SBK3's
www.bikepics.com/members/dibbster

[gsxrboy]

I'm pretty sure it will work at a quick enough speed but as you say it needs to be tested to be sure. My camera is quite a good one but maybe not as good as a gatso...

The bike in picture is a cb350-skip it will burn quite well i think...

[G]

Try taking the picture outside on a sunny day, at the same angle and distance as the Gatso would be at.

I used to have a small slave camera flash that did this for taking pictures*; so it does it work for 'normal' pictures so shouldn't be a problem in that respect.

*Was quite cheap as well, may be worth considering.

[Sparks!]

[Ste]

And you've never ever done such things on the public roads now have you.

Good thing it was below 30 though as below 30 kids just bounce straight off if you hit them.

[mamak]

Hi there. I've been to the traffic offices in Johannesburg and have seen them using a PC to clear up over exposure and even bounced flashes from reflective material on license plates. I'm sure the UK traffic police have similar measures.
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sliding by the seat of my pants. OUCH!!!

[Sparks!]

[iCraig]

Hmmm, why not just slow down to the speed limit or just slow down whilst going through the camera?

I don't see the point of wasting money on something like this, also I very much doubt it works too, because the police can enhance the picture from the camera and still try and get your reg number from it.

[dainesefreak]

Just found this on the web.

[Tarmacsurfer]

It won't work.
The technique used is called 'negative imaging', basically the police unit flips the image to negative then adjusts the contrast/brightness. This means the plate is then visible and readable. Don't forget, this can also lead to being done for perverting the course of justice
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I'm immortal. Well, so far.

[mamak]

[JonB]

[iCraig]

[Wave2k]

its usually when ur on a unknown road at night when ur most likely gonna get speed camera'd
when i came back from Gs i had to do some harsh breaking for the gatsos on the A4
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Ducati 1299 Panigale
2009 Corvette C6 z51
RS125->CBR400->RXS100->GSXR750K2->Ducati749S->CBR600RR5->TL1000R->DRz400->RSVR1000->Honda VTR SP1->CBR400->GSXR1000K6->Honda H100->CBR600RR3->Ducati1299

[Andy99]

If you want to speed past these cameras(seems crazy to me but, hey)the only way to go is get a flip up plate.Lets face it the police aint daft and know a flip up plate when they see one,which is reason enough to stop you.
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Nothing gets the point across quite like a raised middle digit.

Just call me General Crazypaws.

[livin_in_sinn]

doesnt the camera take a picture on each flash? i thought they used the lines on the road and 2 pictures to work out if the limit was broken.
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VTEC

[hustler]

[mrchips]

Does anyone have any info on honeycomb reflective backing numberplates and the spray you spray over your plate?