But for them to be useful, you need to be able to listen to the audio. Some of the earphone jacks are stereo and an inexpensive pair of headphones will serve your needs. This feature can make it easier to shoot tape under low light conditions. Normally, a consumer video camera makes an exposure at a 60th of a second. Unlike film cameras, there's no physical shutter opening and closing.
Video cameras use an electronic shutter.
And while this feature may make it possible to shoot a dope deal in a store parking lot, you'll need a night scope for extremely low-light situations such as a park or an outdoor marijuana surveillance in the middle of a corn field. Some very low speeds produce images that look smeared and out of focus. Before You Buy It. This is the best advice I can offer. Manufacturers and dealers who regularly sell to law enforcement agencies understand the importance of matching the right camera to the right job.