FPV Basics: live video cameras (part 1)

First Person View allows the pilot of a flying model to fly as if they were actually onboard. In this video I look at a few of the options for a dedicated FPV camera and explain the various factors affecting your choices.
Relevant reviews:
On the bench: Runcam Swift FPV camera:
Runcam Swift vs HS1177
AOMWAY 700TVL CMOS FPV camera and backpack
Runcam OWL low-light FPV camera:
Product links:
AOMWAY CMOS camera 700TVL (NTSC)
AOMWAY CMOS camera 700TVL (PAL)
Runcam Swift
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XAT600M (aka HS1177) from SurveilZone