8x10 Studio Shoot, TewantinGelatin-silver photograph on Ultrafine Silver Eagle VC FB photographic paper, image size 16.2cm X 21.5cm, from a Kodak Tmax 400 negative exposed in a Mamiya RB67 camera fitted with a 37mm f4.5 fisheye lens.
It's not large format but rather of large format. Everybody photographs everyone else, dashes downstairs to the darkroom to process the negatives, and finishes with snacks and bottles of wine. A pleasant way to waste an afternoon but still have something to show for it.