Found this cluster of the Common Ink Cap on a mixture of soil and wood debris (Coprinopsis atramentaria; Psathyrellaceae, Basidiomycota; Belgium, Boom park, October 13, 2019). Fieldstack based on 62 images, assembled with Zerene Stacker (Pmax). Sony A7R3, E3.5/30mm macro; ISO-100, f/3.5, 1/80s, -0.7step. Focus ring for separate exposures.