Again just my opinion, but these are much better. Although to me anyway they still look dark, your not capturing/emitting enough light.
I am surprised your going as low as 1/60th. I would normally not venture below 1/80th if not 1/100th, especially on f5. Keeping ISO low can't be a bad thing, but you can easily get away with 1000 or more whithout any noise and the shots will look brighter.
I would have thought 2.8-3.5 would be the best F-stop then you can increase the shutter speed and get a much deeper, detailed shot without sacrificing the depth of field. If you have a little white tab on your flash that can be very handy. You can spin it in the other direction, or the bag I mentioned. Most venues have lowish white ceilings so its not usually a problem. Try 2.8, ISO 1000 and flash on a reasonably low setting and start at 1/100th and work your way up. you may find that you have a sweet spot at 1/200th or even above that and the quality really works.
This was on our Photo Booth at the weekend. ISO 500, 1/320th, F11 (we have a d-lite flash and also need the DOF).
Not what you want, but my point is with a bit more flash, you can really up the settings and get a much clearer, well lit photo, without it looking crap (i.e. flashed out and fake).
Sorry for being mr know-all on this thread. I still have a long way to go with photography, but have managed to get to grips with low light photos, which are the hardest thing to do. Its like learning a language, unless you persevere you wont progress, which was what I did for years. I really need to do a day course with one of the local guys.
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