Hi Tony,
First, are you using the latest RAW-software (SPP 2.5 if you are PC-user / 3.2 for the MAC) If not, please download the latest software from the SIGMA Page. Progress is more than visible!
Secondly, Nikon lenses to SIGMA BODIES can be fitted to the SD9 and the SD10 bodies. This adapter should work with all manual NIKKORs....
The SD14 cannot do this job! SIGMA now does without the outer-ring-bajonett! The NIKON adapter makes use of this feature which is no longer available with the SD14.
Using NIKKOR or M42 lenses is easily possible with the SD10! Switch your SD to (A) Mode and dial the cam to 2.8 aperture (to calibrate the light metering)! Then choose your ISO speed and dial the "real" aperture on the lens! All the rest works automatically.
Exposure calibration with manual lenses: (to be adjusted with the cameras)
SD9: 5.6
SD10: 2.8
SD14: 1.0
To have this clear ... these values are not the "real" apertures, you take the pictures with ... they must be adjusted to calibrate the cameras' light metering. The cams then will choose their appropriate shutter speeds.
The AF-sensor-system works perfectly with manual fokussing ... say ... the camera indicates and beeps when you got your focus in the exact range!
See you with nice pictures
Klaus
P.S.: If there are further questions ... feel free to ask!