D80 has a “normal” highest ISO capability at 1600 and I happy with this ISO 1600 for a long time (the cheap prime len with f 1.8 help me a lot).
Until last month, I have a trip to Chumphon sea. There is one moment in the night at the beach that I wondering about “What is the highest ISO of my D80 and what picture will look like?”.
This is H 1.0 from my D80 which is equal to ISO 3200
Compare to current modern DSLR, this is look terrible (please don’t compare it to Fullframe DSLR).
So, I did as I do before. Try to shoot at ISO 1600 only without care about image quality, just take a photo of moment.