Here is 40+ x 6 min of each of RGB of the SMC as a 32 bit fit that is twice the size of a native sensor image. Drizzled. 600MB
http://d1355990.i49.quadrahosting.co...08/SMC_32b.zip
I have just about nailed down the flexure. More to come.
There is a bit of spherochromaticity in the red channel.
Do your best.
Below is a screen shot just after DBE and stretching.
Bert