Theres a streetlight about 50ft to the left but this area is pitch black. Taken with a 5442 Z4E with onboard IR set at 1/1000 shutter.That's actually a pretty darned good image. Do you have some special lighting nearby? Perhaps a very bright streetlight, or exterior white lights?
Good point! I will see if I have any that came past that didn't have plate lights!It appears to me that the reason that plate was so visible is that it is well lit by the vehicle’s (likely bright LED) license plate lights. If it had been an unlit front license plate, where IR illumination mattered, maybe not so good.
Tennessee vehicles only have rear plates. But the point about the LED plate lights is well taken. That's enough white light to account for the improved contrast.Yeah the 5442 is much brighter than the standard 2mp and unfortunately this car didnt have a front plate
I think it would help quite a bit. If @33696933 is getting that type of image at 45 feet with a -Z4 camera, I certainly think I could do just as well at 80 feet with a -Z12 version.The testing I mentioned in post #206 above with temp rig set up closer was with an older 5231R-ZE which is the same 1/2.8" sensor as the Z12E.
The ZE at 30 feet away captured the plate, but the Z12E at 175 feet did not.
Maybe a 5442 version of the Z12E would help, but I think we simply need to be closer to capture these new plates.
Several hundred dollars, at least. But I'm looking at a different approach. There are tactical LED flashlights available at very low cost. Some of them have strobe switches to create a flashing light. They can also be focused to a narrow beam.Intriguing! Can't wait to see the results.
Looking at the specs, the 20W white pulsed is only good to 48 feet, so that would knock a lot of us out of it.
But the 100W would be good up to 226 feet.
I wonder what these bad boys cost?
Maybe one of these can be made to workSeveral hundred dollars, at least. But I'm looking at a different approach. There are tactical LED flashlights available at very low cost. Some of them have strobe switches to create a flashing light. They can also be focused to a narrow beam.
The question is: can the strobe effect be modified to reduce the duty cycle and increase the frequency of the flash, either internally or externally? There are also some pulse width modulated power driver boards that might be adapted to a standard LED flashlight. So an LED flashlight that is focused to a narrow beam and strobed at maximum intensity for 1 millisecond at 100 Hz might do the trick.
If it is flashing at 100 Hz, it will just look like a dim white light to your eyes. The retinas of your eyes simply don’t respond that quickly to very bright, very brief flashes of light.I don't know how bright these strobes are. I'll just say if I had one flashing at me at night, I'd be tempted to use our president's favorite home protection device on it.