True, and he started with 1/100,000 second exposure time humming-bird images 83 years ago! The MIT group used a flash with 0.5us exposure time. I asked for details without answer yet, but assume that it is costly (Vela…
Really? USB2 is 300Mbps for PI3 ethernet over USB2, is it faster with hdd? I ask because snail 35MB/s is 280Mbps.
No answer on the networking forum yet. I cannot try because I don't have a Pi4 yet. It seems possible. An easy test would be to test whether this command will work on Pi4: raspividyuv -md 7 -w 640 -h 480 -t 0 -fps 90 -o…
> I'm just trying to find what shutter speed you can get with the Pi camera. You can reduce the shutter time nearly arbitrarily, as long as you increase light intensity. I did place fast rotating propeller just above a…
A group of MIT students did synchronize 16 PIs with 16 cameras just over GPIOs to shoot at exactly the same point in time. And they built in microsecond delay for adjusting on when exactly the bullet has passed through…
I was wrong, the 9$ are for NoIR camera with M12 lens mount and lens. I just ordered 4 new NoIR cameras for 2.84$(!) including shipping! https://www.aliexpress.com/item/32946093276.html
There is a drawback with Raspbian, while Raspbian itself is open source, the GPU code is closed source and you cannot debug it. What you can do is to reverse engineer the I2C traffic from Raspberry GPU to camera (that…
Yes, there are NoIR versions of v1 camera, they just miss the infrared filter normal cameras have (around 9$ on aliexpress.com). And there are 12$ versions of v1 camera with (hardware) IR-cut filter, depending on photo…
Yes, you can do 320x240 with modified raspiraw parameters. But you will get the same framerate as for 640x240, for v1 as well as for v2 camera. You can do the opposite and increase horizonatal resolution for line…
You can get Raspberry v1 camera clone now for less than 4$(!) with free shipping on aliexpress: https://www.aliexpress.com/wholesale?SearchText=raspberry+5M... And unlike v2 camera, the cheap v1 camera allows (besides…
Find diagram showing the achievable framerates for 640xH frames for v1 and v2 camera here: https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=2125... Deal is basically "halve vertical resolution, and get roughly…
Easiest way to avoid flicker is to light the scene with 1000lm or 5000lm cheap leds with led driver (they power the led with 38V/1.5A DC for 5000lm). Total cost of led+driver is less than 9$ with free shipping on…
True, and he started with 1/100,000 second exposure time humming-bird images 83 years ago! The MIT group used a flash with 0.5us exposure time. I asked for details without answer yet, but assume that it is costly (Vela…
Really? USB2 is 300Mbps for PI3 ethernet over USB2, is it faster with hdd? I ask because snail 35MB/s is 280Mbps.
No answer on the networking forum yet. I cannot try because I don't have a Pi4 yet. It seems possible. An easy test would be to test whether this command will work on Pi4: raspividyuv -md 7 -w 640 -h 480 -t 0 -fps 90 -o…
> I'm just trying to find what shutter speed you can get with the Pi camera. You can reduce the shutter time nearly arbitrarily, as long as you increase light intensity. I did place fast rotating propeller just above a…
A group of MIT students did synchronize 16 PIs with 16 cameras just over GPIOs to shoot at exactly the same point in time. And they built in microsecond delay for adjusting on when exactly the bullet has passed through…
I was wrong, the 9$ are for NoIR camera with M12 lens mount and lens. I just ordered 4 new NoIR cameras for 2.84$(!) including shipping! https://www.aliexpress.com/item/32946093276.html
There is a drawback with Raspbian, while Raspbian itself is open source, the GPU code is closed source and you cannot debug it. What you can do is to reverse engineer the I2C traffic from Raspberry GPU to camera (that…
Yes, there are NoIR versions of v1 camera, they just miss the infrared filter normal cameras have (around 9$ on aliexpress.com). And there are 12$ versions of v1 camera with (hardware) IR-cut filter, depending on photo…
Yes, you can do 320x240 with modified raspiraw parameters. But you will get the same framerate as for 640x240, for v1 as well as for v2 camera. You can do the opposite and increase horizonatal resolution for line…
You can get Raspberry v1 camera clone now for less than 4$(!) with free shipping on aliexpress: https://www.aliexpress.com/wholesale?SearchText=raspberry+5M... And unlike v2 camera, the cheap v1 camera allows (besides…
Find diagram showing the achievable framerates for 640xH frames for v1 and v2 camera here: https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=2125... Deal is basically "halve vertical resolution, and get roughly…
Easiest way to avoid flicker is to light the scene with 1000lm or 5000lm cheap leds with led driver (they power the led with 38V/1.5A DC for 5000lm). Total cost of led+driver is less than 9$ with free shipping on…