We had a rare family party recently, and I have respectable digital images
of four generations of us.  I still have my full wet darkroom, and I'm now
wondering how best to capture an archival version of the family group.
(which can be viewed in many decades to come without needing the latest in
computer technology etc.)

Some Ideas
1 - Make A3 print (largest my printer can manage), capture on B&W film, and
make fibre based prints following the normal recommendations re washing,
hypo removal etc.  (I'm relaxed about the prints being in B&W for archival
purposes.  After all, that's how I see images of my gr gr parents etc.)

2 - Make A4 print, and have it microfilmed and processed to an archival
standard. (Used to be good for 100-200 years from memory.)  This could then
viewed using low technology microfilm viewers.

3 - Get print made from digital image in the high street using one of the
modern laser(?) printers.  Anyone know if these are archival?

(4 - Have an oil painting made from the print.)

Thanks for any ideas