I have to shoot a Bronze casting next week for a small corporate gig. DSLR (5D Mk IV).
Obviously there will be a very large difference in exposure between the metal and the talent. My plan of attack is as follows;
I'll shoot HDR mode (I've tried playing with the CLog mode, but I can't see a clear benefit in dynamic range and it has a difficult to remove greenish colour cast). It will hopefully help a little anyway.
ND or variable density filter (watching out for the dreaded dark cross)? to try to retain longer shutter speeds. (will having such a bright source introduce internal filter reflections?)
Blast a snooted fresnel in there to try and bring up the exposure of the surfaces interacting with the metal a bit? Not sure what good it will do, I mean we're talking molten metal here and I imagine the surfaces are blackened with soot! (with the possible exception of the mould itself).
Radiant heat - can it hurt the lenses with thermal shock?
Two cameras mounted on a bar, one tight, exposed for the metal, one wide, exposing for the talent conducting the pour.
From memory shooting in a steel smelter years ago, you want the steel to be a bit over so it retains that 'hot' look.
Any other tips? Slo-mo?