Photo by: Michele Catania

· The human eye reproduces light variations at a radio of more than 1000:1.

· The best video camera can only reproduce light variations at a 30:1 ratio.

· The human ear reproduces sounds as loud as 160 decibels.

· The best microphones reproduce sounds no louder than 60 decibels.

Source: Robert Musburger's Single-camera video production, 3rd edition. P.5