![]() Turret cameras (sometimes called “eyeball” cameras) like these have advantages over traditional dome-type cameras in that they are generally physically smaller, and there is no curved perspex outer dome to gather dirt and reduce image quality. BASIC OUTDOOR TURRET/DOME: DAHUA TECHNOLOGY N53AJ52ĭahua make a dizzying array of cameras across all form factors. We are not affiliated with any outlet or manufacturer mentioned on this page, and we get no financial incentive for recommending them. cameras designed for the Chinese market only, but sold into the US against the manufacturer’s rules), which should be avoided due to lack of support from the manufacturer. Amazon is another option, however there are many “grey market” cameras sold on Amazon (e.g. ![]() PTZ – Pan/Tilt/Zoom – motorised remote control of the camera’s horizontal and vertical angle and focal length.įor purchasing IP cameras, we recommend B&H Photo Video – they are a reliable, established outlet.This is not the same as true “zoom” lenses: varifocal lenses are designed to be set once at install time, whereas zoom lenses are designed to be operated continually. A focal length of 2.8mm is wide-angle 4mm is medium 8mm is moderately telephoto (a bit “zoomed in”). Varifocal – These lenses allow you to adjust the field of view at installation time.P-Iris is more sophisticated and will give better results than than DC-Iris, but both are far better than a Fixed-Iris lens, especially for outdoor applications. P-Iris / DC-Iris – These features (collectively called “auto-iris”) allow the camera lens to automatically adjust its aperture based on the amount of incoming light.Usually the manufacturer will specify the maximum useful range of the IR in meters. IR – Infra-Red – some cameras include Infra-Red LEDs (Light Emitting Diodes) for night vision.PoE – Power-over-Ethernet – when using a PoE switch, the camera draws power over the ethernet cable and so doesn’t require a separate power supply.The higher the resolution, the more detailed the image, but resolution isn’t everything: the optical quality of the lens system is also extremely important. MP – Megapixel resolution – the number of millions of pixels in the image sensor.Some abbreviations used below are as follows: They are listed in no particular order (they are quite varied in terms of cost and feature set, which makes them difficult to rank as a “top 10″ list), however they are all cameras that, due to their impressive features, we recommend to our customers for use with our SecuritySpy CCTV software for the Mac. Here are our network camera picks for 2021.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |