No, not thought to make use. I think it is less practical ( no so stable to hold into the same position). The light direction with small changes is not good visible. On the other hand, with a joystick, you could automatically calculate all values. Now with a cheap potentiometer I get just the 10 positions. I use three types of presets, 50%, 25% and 12.5% power. The exposure time is thereby 2x, 4x or 8x longer ( shift left 1,2 or 3bits of the flash time). The best experience I have is with the 25% power preset table.ChrisR wrote:a joystick for the lighting direction?
I might add a small PCB with 10 LEDs in a circle on the controller front plate. In order to show the direction visually better. My LCD display does not display a good graphic symbols for this function.
I just further examined the joystick. There are normally two potentiometers used. I would need an additional analog input to the ADC. I have 3 of the 8 inputs free. With the information from the two potentiometers you have more information for automatic computation. If the joystick is in the neutral position, there is no direction and the power is 100%. The flash time is then the default time. As you move the joystick sideways the flash must go narrower, the direction is know from the 2 potentiometers. The power can be calculated with a simple algorithm in real-time. All presets there would no longer need. Although the end result is likely to be similar, it is still a challenge. Find the correct algorithm will take some time, as well as the actual programming into the FPGA.
First order a joystick....
Live-view has now the same light direction function support. The correct flashlight lighting direction is now already determined in live-view mode on the PC screen before any pictures are taken.