Originally posted by Christian I was set to buy a Pentax 540 flash but.. does the Sigma 500 Super DG do everything that teh Pentax one does on the K10D? (not bothered about build quality or anything... just compatability / accuracy of exposure / functions/control/ power.. want to use it for gigs mainly and some occasional portrait/experimental work, possibly weddings/occasions as the onboard flash leaves a shadow). The Sigma is so much cheaper see... should I get it?
People are going to say either is excellent and both are terrible and everything in-between. Some will try and tell you exact settings that work every time; some will say experiment is the key. Others will recommend entirely different equipment.
Buy the one you like-the one that makes you most comfortable. What ever measure you use for comfort: dollars, flash power, ergonomics, what the bloke down the street might say or have.
And then get a couple sets of batteries and put some real effort into understanding what the manual say and what the unit will do. There are NO magic settings, no perfect combination of user to flash to camera. In the end there is only your vision and if you understand enough about the equipment to meet at least part of that vision.
I wish I could say "good luck" with real conviction in this situation, but I cannot. What you really need is somebody to kick you swiftly in the seat of your pants while shouting "get out there and shoot something!"