Discussion
I don't know if its's effective but I doubt it, can't really see it being illegal though? but I went to the BMF fair at the weekend and there were several stalls selling it, ironically one was right next to a Police bikesafe stall 
wnder how many cans that particular stall sold compared to the others?
wnder how many cans that particular stall sold compared to the others?
docjan said:
Sounds like crap, people always go on about the sprays through second hand information, never heard of them working.
How precisely is it meant to work anyway?
The makers claim it overexposes the photograph resulting in a white number plate. Pricey stuff though, almost £30 recommended retail.
Dubious legality if it works.
To be honest, of all of theses "sprays" which I have seen just dont work. That said, the most effective one I saw was one which flashed back, effectively bluring the picture. However, thats probably illegal.
Sprays to block photos? Nah. The majority of cameras are now digital which can be enhanced easily. Even the photo ones are processed digitally and they can get almost everything - they can cope with funny fonts, odd sizes and even mud-blurred ones! So will a spray really help?
Bit of a con I am afraid...
To be honest, of all of theses "sprays" which I have seen just dont work. That said, the most effective one I saw was one which flashed back, effectively bluring the picture. However, thats probably illegal.
Sprays to block photos? Nah. The majority of cameras are now digital which can be enhanced easily. Even the photo ones are processed digitally and they can get almost everything - they can cope with funny fonts, odd sizes and even mud-blurred ones! So will a spray really help?
Bit of a con I am afraid...
If you want to block your number plate you are going to have to make it truly opaque.
There are electronic systems which can achieve this - but I suspect they are highly illegal.
Not only this - but what do you want one for? It would need to automatically and reliably detect a speed camera that takes photographs and obscure the plate whilst passing it. I haven't heard of such a complete system outside of Bond movies...
There are electronic systems which can achieve this - but I suspect they are highly illegal.
Not only this - but what do you want one for? It would need to automatically and reliably detect a speed camera that takes photographs and obscure the plate whilst passing it. I haven't heard of such a complete system outside of Bond movies...
Don said:
If you want to block your number plate you are going to have to make it truly opaque.
There are electronic systems which can achieve this - but I suspect they are highly illegal.
Not only this - but what do you want one for? It would need to automatically and reliably detect a speed camera that takes photographs and obscure the plate whilst passing it. I haven't heard of such a complete system outside of Bond movies...
Seeing that a spray would only work (if indeed it works at all!) for cameras that use flash, ie Gatso so would be uselss against ScamVans, Specs etc. I can't see why anyone would buy it. Most, if not all, Gatso's are fairly hi-vis and frankly if you speed past a Yellow Gatso and get flashed you are probably a complete muppet who wouldn't even consider taking 'AntiScamming' action in the first place.
Now something that could obscure plate only to the 'ScumStealth' Talivans would be interesting but it would need some very hi-tech wizardry that probably doesn't exist and would be very expensive if it did, even a flip plate is no use unless you can flip it at exactly the right moment.
might want to try a 'garage door opener' or remove your plate completely
Don said:
If you want to block your number plate you are going to have to make it truly opaque.
There are electronic systems which can achieve this - but I suspect they are highly illegal.
Not only this - but what do you want one for? It would need to automatically and reliably detect a speed camera that takes photographs and obscure the plate whilst passing it. I haven't heard of such a complete system outside of Bond movies...
Ah yes, the revolving number plate system on the DB5 in the film 'Goldfinger'.
Is it true that the penalty for having no plates at all is less than the penalty for a quite modest speeding transgression?
Best wishes all,
Dave.
fund 
I agree with McFlurry. 
We tried it on a couple of our patrol cars, as per instructions, and it made not one jot of difference. Seems not much more than clear laquer, according to the workshop bods. Plus, as stated, it takes but a few milliseconds to look at the reverse/negative image and off the paper process goes....
We tried it on a couple of our patrol cars, as per instructions, and it made not one jot of difference. Seems not much more than clear laquer, according to the workshop bods. Plus, as stated, it takes but a few milliseconds to look at the reverse/negative image and off the paper process goes.... streaky said:
There are three different leading technologies: liquid-crystal, electrochromic and suspended-particle-device (SPD). These turn from transparent to opaque at the flick of a switch - Streaky
I've seen 'em - for "show" use only. But you'd have to remember to switch "stealth" mode on.
Given you've already seen the GATSO why not just slow down to pass it?
What a total waste of money!
Clearly if you had a reliable enough sensor you could create a system that switched the "stealth" plate to opaque automatically...perhaps using GPS or something. I reckon it would stand out like a sore thumb though...and its got to be illegal.
No, Mr Bond, I expect you to die!
Don said:
Given you've already seen the GATSO why not just slow down to pass it?
Indeed *
Don said:
Clearly if you had a reliable enough sensor you could create a system that switched the "stealth" plate to opaque automatically...perhaps using GPS or something.
but what if you're below the limit? what if plod sees it change? It would be easier just to 'lose' your plate (less illegal?) or fit a false one (probably no more illegal?) Gatso's are not really the problem, it's the sneaky bar-stewards in the talivans you need to protect yourself against.
*or get an old tyre and a gallon of...
brian b said:
A company specialising in camera detectors etc have said that a product (spray) called photoblocker is not only legal to use but actually works. Call me an old sceptic if you like but I cannot believe either part, the legality or the effectiveness. Has anyone tried it?
They are wrong. Any treatment of a number plate that prevents it being machine readable is illegal under law
www.opsi.gov.uk/si/si2001/20010561.htm#11
Boosted LS1 said:You can buy remote slave camera flash modules; these trigger external flashguns when a flash is detected. It's simple enough to get the full system running off a 12V supply. it won't hinder SPECS or other video recorders.
Loved the idea of a counter-flashing light to blind cameras, how would you get a 'slave flash' to work from 12V anyway justwonderingthatsalll
I'm sure it could be done, if you know how we'd love to hear
Boosted.
rich 36 said:See www.metz.de/en/datenblatt_pe/92/ - runs off about 8.4v (IIRC) - Streaky
Loved the idea of a counter-flashing light to blind cameras, how would you get a 'slave flash' to work from 12V anyway justwonderingthatsalll
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