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And Powell tells you how to choose the right gun camera?
Gun-type cameras are ideal for areas with low light or where it's not possible to install lighting equipment at night. They are particularly effective when monitoring the movement or position of a scene. These cameras have a broad range of applications, and depending on the lens used, they can support either long-range or wide-angle monitoring. Compared to dome cameras, gun-type models offer greater flexibility in installation and use. The zoom capability of a gun camera largely depends on the lens, and it can range from several times to dozens of times. Replacing the lens is also easier, although you may need a mounting bracket if you want to add a protective cover.
Currently, surveillance cameras from gun-type manufacturers come in several common forms: gun type, dome type, bullet type, and infrared type. Gun-type cameras are widely used due to their versatility. With different lenses, they can be adapted for both long-distance and wide-area monitoring. Their application scope is broader than that of dome cameras. The zoom range is determined by the lens, and the replacement process is straightforward, though a mounting bracket might be required if a protective housing is needed.
When choosing a gun-type camera, consider the ambient lighting conditions. If the lighting is poor, opt for a camera with lower illumination requirements, such as color ultra-low light cameras, color-black-and-white automatic conversion dual-purpose models, or low-light black-and-white cameras. It’s important to note that if the lighting is insufficient and image clarity is critical, a black-and-white camera is usually the better choice. In total darkness, infrared lighting or an infrared night vision camera should be used. These cameras typically have a color-to-black-and-white switching mode, come with a lens and bracket, feature vacuum packaging for indoor use, and are compact, aesthetically pleasing, and highly cost-effective.
For installation, gun-type cameras can be mounted on walls or ceilings, making them suitable for both indoor and outdoor environments. This flexibility allows for easy placement in various locations.
When selecting the installation method, fixed installations typically use standard gun-type cameras. These often come with power zoom lenses, which offer more control but are generally more expensive and require more complex setup compared to integrated models.
To ensure image quality, pay attention to the resolution. For color cameras, 420TVL and 520TVL represent medium resolution, while 480TVL and above are considered high-resolution. Higher resolution means sharper images, but also a higher price tag.
Additionally, check key performance specifications like signal-to-noise ratio (SNR) and auto iris lens compatibility. A good SNR is crucial for clear imaging, especially in low-light conditions. Most systems require an SNR of at least 48dB, which exceeds industry standards. A higher SNR results in clearer video output. Lens drive modes are usually dual-drive, allowing the use of both DC and video-driven auto-iris lenses, offering more flexibility in system design.