For those interested in an alternative to Sigma Photo Pro, I just received this message in response to an inquiry. Please note that Irridient already provides support for the SD1.
"The DP1/DP2 Merrill models will both be supported in the next update which should be out soon (weeks).
|High Altitude Rocky Mountain Railroad by cjf2|
from On the Rails...
|Evening at the lake. by Murat ÜNSAL|
|Antillean Crested Hummingbird refuelling by hwvlover|