Page 1 of 2 12 LastLast
Results 1 to 10 of 11
  1. #1
    Good Citizen
    Join Date
    Jun 2005
    Location
    Dallas
    Posts
    179

    Default Test your laser reflectivity w/PIC

    I noticed there arent any threads about this so I figured I would let everyone know. If you are interested in how reflective your car is to a laser gun, do this. Wait until its really dark. 11pm or later. Drive to an area where there isnt any light. Country road or something. turn off your car. (lights off too) get infront of it about 50-100 feet, and take a picture with your flash on. The picture that develops is how your car will look to a laser gun. Back in the days of the blinder m-06hp you used to be able to look at your car through a digital camera at night and verify your blinders were working. Same concept. The link has a good example of what im talking about. The lights were off. http://i21.photobucket.com/albums/b2...a/IMGP1327.jpg

  2. #2
    Founder of Stealthvation
    Join Date
    Dec 2004
    Location
    Cleveland, Ohio
    Posts
    11,174

    Default

    Good info. I have to try that with my Civic and SUV. The problem is that they are both so stealth that nothing will show
    RIP Duncan my BELOVED black lab son 8/7/99-3/23/11. I will miss you DEARLY.


    http://www.criminalcustomzshop.com/


    LET THE BIRTH OF MANY TESTING GROUPS HAPPEN!











    You want to know what it is like doing something for the love and passion and not for the mighty dollar then look up GOL!










    buyradardetectors rocks!

  3. #3
    Good Citizen
    Join Date
    Jun 2005
    Location
    Dallas
    Posts
    179

    Default

    Well, it wont take into effect the blinder's jamming ability. Because they arent going to respond. It will only show what reflects. I didnt realise my fog lights would reflect so much. And it really makes you see how bad a front plate screws you. Good thing i dont have one.
    Andrew

  4. #4
    Experienced
    Join Date
    May 2005
    Posts
    272

    Default

    Hey, those lights are on! (fogs and turnsignals)

  5. #5
    Old Timer
    Join Date
    Jun 2005
    Location
    New Hampshire
    Posts
    6,806

    Default

    I thought of the same thing, but why not take it one step further. Go to a dark area and then take a picture using a camera or camcorder that has a night-shot infrared mode. Many Sony cameras and camcorders have this feature, and I'm sure other brands too. Then you can see where your IR hot spots are. This is a good way to see how effective Veil and anti-laser plate covers are as well. Take a pic before and after applying.
    If I'm passing you on the right, YOU are in the wrong lane!

    If speed kills, how come I'm still alive?

    Active Countermeasures: V1 3.858, Escort Redline, Beltronics STi-R+, LI Dual 7.1x CPU/8.7 Heads (front)
    Other/Backup Countermeasures: V1 3.813 (loaned to friend), Beltronics Pro RX65 M4 6.3
    Vehicle: 2002 Audi A4 1.8T Quattro
    LEO Toys: Kustom Pro Laser II & III
    Encounters/Saves August 2011: Radar 3/1, Laser 0/0


  6. #6
    Professional
    Join Date
    May 2005
    Location
    Daytona Beach, FL
    Posts
    1,406

    Default

    The Nightshot mode will allow the camcorder to pickup and display IR, but it doesn't send any out to reflect off of the car.

    If you cut on the IR LaserLink feature of the camcorder, it does send some out, but it's far enough away from 905 nm that it doesn't set my V1 off. It does create a bright green spot, and I suppose you could look at that, but it's in a different part of the IR spectrum.

    I just did a quick test using my Sony TRV8 and TRV10 and V1. The IR remote for my TV will set the V1 off.

    Ed

  7. #7
    Good Citizen
    Join Date
    Jun 2005
    Location
    Dallas
    Posts
    179

    Default

    Quote Originally Posted by Nothegger
    Hey, those lights are on! (fogs and turnsignals)
    actually they arent. but it does appear that way. they only light they are emitting is light reflected from the camera flash. that the point of the test. to see what reflects the most.

  8. #8
    Good Citizen
    Join Date
    Mar 2005
    Posts
    169

    Default

    Most consumer grade flashes wont work worth a damn at 50-100 feet. (Been awhile since I was in photography or have shot a picture, so this is all a distant memory). Most work 15-20 feet away at best.

    You'll probably have to play around with this to get it right. If I was using a decent 35mm slr, I'd frame the shot so the whole car is in the picture, but not much further away then is absolutely nessicary so the flash actually has an effect (use a tripod).

    The closest example effect i could find is here: http://www.foodportfolio.com/howdedo...s/trumpet.html
    (100 ISO film, 1 second shutter, f5.6)

    The trick is trying to get the shiny surfaces to shine without making the rest of the car clearly visible...

    I'd say the easiest thing to do with a digital camera might be to manipulate it in photoshop to get the desired effect. Change it to greyscale, then make it like 5 colors (white, light grey, grey, dark grey, black) and the white will be the shiniest parts of the car, the black will be nearly invisible. This is speculation, of course, I dont have photoshop installed and I'm not gonna go outside and take a picture of my car to try it :-P

  9. #9
    Old Timer
    Join Date
    Jun 2005
    Location
    New Hampshire
    Posts
    6,806

    Default

    Quote Originally Posted by edweird
    The Nightshot mode will allow the camcorder to pickup and display IR, but it doesn't send any out to reflect off of the car.
    Actually, Nightshot on the Sonys does emit IR. That's how it's able to work in complete darkness. Granted, it's not a very powerful IR source, but it should be enough to identify the IR "hot spots" on your car.
    If I'm passing you on the right, YOU are in the wrong lane!

    If speed kills, how come I'm still alive?

    Active Countermeasures: V1 3.858, Escort Redline, Beltronics STi-R+, LI Dual 7.1x CPU/8.7 Heads (front)
    Other/Backup Countermeasures: V1 3.813 (loaned to friend), Beltronics Pro RX65 M4 6.3
    Vehicle: 2002 Audi A4 1.8T Quattro
    LEO Toys: Kustom Pro Laser II & III
    Encounters/Saves August 2011: Radar 3/1, Laser 0/0


  10. #10
    Radar Fanatic
    Join Date
    Jun 2005
    Location
    Fort Worth, Texas
    Posts
    2,274

    Default

    Picture difference with and without laser shield
    White car - no laser shield Black - laser shield


 

 

Similar Threads

  1. Test volunteers wanted for Miami Laser jammer test
    By venom400 in forum Laser Jammers - General
    Replies: 20
    Last Post: 09-27-2009, 08:23 AM
  2. Lowering Reflectivity
    By Dmitri in forum Laser Jammers - General
    Replies: 2
    Last Post: 06-09-2008, 08:20 PM
  3. Sample reflectivity profile
    By ahmadr in forum Laser Veil Stealth Coating
    Replies: 12
    Last Post: 09-23-2007, 08:12 PM
  4. State plate reflectivity
    By A-TownNavi in forum Laser Jammers - General
    Replies: 6
    Last Post: 02-02-2006, 12:53 AM
  5. Reflectivity Cutting Down
    By 411 in forum Laser Veil Stealth Coating
    Replies: 7
    Last Post: 12-28-2005, 06:13 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •