Collected some, OK a lot of data from the Rho Ophiucus Complex and used EasyHDR to produce this image.
!.5MB
http://members.optusnet.com.au/~trlee8/rho_oph.jpg
Details.
Canon 5DH, Canon 300mm F2.8L at f/2.8, Hutech LPR filter. ICNR ON.
This image is the result of using EasyHDR on five sets of exposures, consisting of 5X(1&2 minutes) at an ISO 200, 5X(2,4 and 8 minutes) at an ISO of 400.
I did not have to use GradientXterminator and you will notice M4 is not blown out.
Bert