I'm writing a gphoto capture script for solar eclipse. I'm interfacing two Nikon DSLR cameras.
I'm trying to do HDR bracketing during totality (lasting 2 and half minutes max). Take a image then step down 1 or 2EV and repeat. The target was set to sd card.
The problem seems to be related to performance. A next capture won't start until the sd card is written. Some of the trigger-capture seems to be ignored. Will writing c code by calling direct ptp command fix this problem? Manually operating the camera appears file i/o and capture are asynchronous.
Or if it's possible to capture 14 raw to sdram in quick concession before downloading them with usb together ?