This is ~ 24 hours of data on the elephants trunk. There are 200x5 minute (16h40m) frames split between my Canon Ra at iso 1600 on my Stellarvue 90mm triplet with a Hotech field flattener, and my Canon 6D on a Canon 100-400mkii at 560mm f8. There is an additional ~8 hours of luminance from my SBIG 8300 that was also providing off-axis guiding for the whole assembly.

Each set of files were calibrated with bias, dark and flat frames.