Video shooters constantly plug and unplug HDMI and USB cables. Wiggle these ports gently to ensure they aren't loose, as a broken HDMI port can render a camera useless for external monitoring.
Some older mirrorless cameras (like early Sony A7 series or certain Canons) are notorious for overheating during long video takes. Research the specific model's reputation for thermal management before committing. Where to Buy buying a used video camera
Ensure the camera has a dedicated microphone jack and, ideally, a headphone jack for monitoring audio. The Inspection Checklist Video shooters constantly plug and unplug HDMI and
When scouting for a used camera, three technical specifications should be non-negotiable: Buying a used video camera is an exercise
While 4K is standard, look for cameras that offer a high bitrate (at least 100Mbps) to ensure the footage doesn't fall apart during editing.
Buying a used video camera is an exercise in prioritizing "good enough" over "cutting edge." By stepping back one or two generations, you bypass the steep depreciation of new electronics and gain access to a tool that, in the right hands, is capable of producing world-class imagery. Do your research, test the hardware rigorously, and remember: the best camera is the one that leaves you with enough money left over to actually go out and film.