Hasselblad 500CM camera / Zeiss Planar 80mm lens / Fuji 400H film.
I think they were looking at a video about Romans (not dad's photos I'd wager).
Inspired by a thoughtful, honest article on the upsides of family screentime by Tracey Thorn in the New Statesman bit.ly/21QGHWU
No digital filters but deliberately overexposed +2 stops then leveled in post to bring out maximum 400h vibrancy. High Street dev and scan.