thanks for the comments guys.excellent tips and links,michael.paul: i,ve tried several software programs,and photomatix seems to work best for me anyhow.i,m dying to try nik,s version,soon i hope.i havent had any sucess,with single image HDR,as i found it cant pull out the full dynamic range without introducing all kinds of artifacts.i always have a sturdy tripod with me and,and a cable release to facilitate things.the thing for me to do now,is to take several images at 1 or 2 stops apart to combine to get the full dynamic range especially if the image has a lot of contast in it.