Thanks for all your feedback,As both of you have suggested the long exposure noise reduction was set to auto.Tim thanks for the examples I found them amazing, now with some expert info. I can not wait to try it all out.many thanksRob
Tim,Sorry about the lack of info. The card is in OK because I had just taken a shot of a shorter exposure and it worked fine.The next exposure was manually focused with a medium aperture setting.I exposed using a cable release for 30min. on a tripod....
