Professional equipment, being rugged and physically large, provides visible, easy to set controls. Expect professional and prosumer cameras to have multiple sound channels, a black level control, a gamma (color linearity) control, and manual settings for exposure, focusing, sound level, and a lot else. Professional equipment has one unwelcome aspect: it may draw attention to you in the street and trigger exaggerated expectations in some participants. A camera that captures well but looks like a holiday accessory may be a necessity in situations where you want to look like a tourist, not a broadcast journalist.
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