No Flash Permitted
The church problem was solved by having the bride's mother savage the vicar, but one cannot always enjoy oneself like this - sometimes we have to suck it up and put away the flash.
Case in point was a dance show this weekend - the big school theatre where it was held had stage lighting, but it was way up in the rafters. Some additional towers were put on the stage - but again these were modest output. The lighting equation would have been pretty well unsolvable had I been using regular sorts of films or regular sorts of digital camera. Dancers move fast and you can't do long exposures.
Fortunately I found out last show that the Fujifilm X-E2 could go to 3200 ISO without coughing - and this time it went to 6400 with acceptable shadows -and a DR of 400%.
As well, the Auto white balance nailed the mixed stage lighting very well - as soon as it went through Aperture 3 or Lightroom all the jpeg files fell in place.
I noted that this does not seem to be the case with other images posted from audience members - they have been forced into some pretty grim colour. Presumably the results are from smaller compact cameras or older digitals that don't quite have the newer circuitry or capabilities.
I reflected at the time that Nikon pro users would have been as well or better served in the same circumstance - the low-light capabilities of the D3, 3s, 4, Df, and D750 are justly lauded. 'Course they would have been hauling heavier iron than I was and that does make a difference if you're holding it for 3 hours or are lazy...
So the conclusion is, get Fujifilm, or Nikon, or plead for permission to use flash. Or bring the bride's mother...