I cheated a little on this one by adding some old data I had from the VCO. I decided to leave the full field as an example of how awkward it is integrating multiple optical tubes. Despite all the lessons on background extraction I've learned from the Plaskett data over the years, sometimes you just can't win the fight.
-28x5m Canon 6D/SVR90T with SCA flattener
-32x5m Canon R6mkii/Canon100-400mkii with 1.4x extender
-34x5m Canon Ra/Askar FRA600 with 0.8x reducer (RGB)
-27x400s SBIG 8300m/Orion ED80T with 0.8x reducer (lum)
-61x3m Canon Ra/Askar FRA600 with 0.8x reducer (NB1)
All of the DSLRs were shot at iso 1600 and calibrated with bias/dark/flat frames.