Different types of mold grown in Petri Dish - Home DIY lab - Bacterial Culture
For those who seek the secret knowledge, here are some stats
PHOTO TAKEN WITH:
MODEL: Canon EOS 5D Mark IV
APERTURE: f/13.0
LENS: 70 mm
EXPOSURE: 1/200 s
ISO: 400
Original size: 6720 x 4480 px