or sticky-tape it to the window.
d5 has an actual shutter yeah? not mirrorless? I think the shutter moving will spin the camera.
I haven’t looked at the manual but it likely has the ability to flip and keep the mirror up for direct capture on the sensor without the mirror flipping up and down between exposures.
I haven’t looked at the manual but it likely has the ability to flip and keep the mirror up for direct capture on the sensor without the mirror flipping up and down between exposures.