C and cs mountcanon

A camera with a wide-angle lens is perfect for monitoring large areas but sacrifices detail. These cameras work well for spotting general movement or activity in open spaces like parking lots or lobbies.

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When you're thinking about installing a best security camera, understanding some basic concepts can go a long way in helping you make the right choice. One of the most critical aspects of camera performance is the field of view (FOV).

C-Mount camera

The FOV helps you decide what kind of camera you need. Do you need to capture a large area, like a parking lot, or focus on a smaller space, like a hallway or entry point? Choosing the right FOV ensures you're getting the footage you need, whether it's a broad overview or fine details.

CS-mountthread

How do you find the right lens for a camera? What roles do resolution, sensor size, image circle, focal length, and lens size play in creating optimal image quality?

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C-Mount adapter

Simply put, the FOV refers to the area a security camera can capture or "see." Measured in degrees, this tells you how much of a scene will appear in the camera's frame.

Some people use "field of view" and "angle of view" interchangeably, but there is a subtle difference. In general, the FOV is the broader term that refers to the entire area visible to the camera, while angle of view is more about the specific angular measurement based on the lens. For practical purposes, though, you can treat them the same when considering a security camera.

To get a sharp image, you not only need the right camera, but also the right lens to go with it. Our beginner's guide to lens selection will help.

Adapter rings can allow you to connect C-mount lenses to CS-mount cameras, broadening the application reach of the equipment. Note that CS-mount lenses cannot be connected to C-mount cameras due to the shorter flange focal distance.

c-mount thread dimensions

Todd Morris is the Founder and CEO of BrickHouse Security, a leader in GPS tracking and security solutions since 2005. Featured on the Inc 5000 list, Todd has steered the company from its inception, applying expertise developed at Apple, Adobe, and MapQuest to deliver innovative, reliable solutions for both businesses and consumers. Recognized as an authority in the GPS tracking industry, Todd regularly contributes insights to major news programs. His practical approach includes using his sons as beta testers for products, from stroller tours to monitoring teenage driving, ensuring BrickHouse’s offerings are user-friendly and effective. This hands-on testing reflects Todd’s commitment to real-world application and safety.

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Before setting up your security camera, it’s important to consider a few key factors to make sure you're capturing the right angle for your needs. Whether you're monitoring a wide outdoor area or a narrow hallway, understanding your camera’s Field of View (FOV) will make all the difference in getting clear, useful footage.

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On the other hand, if you're looking to capture specific details, like license plates or facial features, a narrow-angle camera with a telephoto lens is the better option. These cameras are ideal for entrances or areas where identifying specific people or objects is critical.

CS-Mountlens

In order to connect a lens to a camera, we need a threaded connection—the mount. Mount sizes are standardized and are indicated by letters, with the C-mount being the most common type used for machine vision cameras. It is used for sensor diagonals measuring up to 20 mm, or 1.5 inches. The thread has a nominal diameter of 1 inch (24.5 mm) and a pitch of 1/32 inches. The flange focal distance of this lens mount is 17.526 mm (0.69 inch).

If you’re still not sure which lens or field of view is best for your needs, don’t worry—that’s what we’re here for. At BrickHouse Security, we test all of our products to make sure they work for real-world applications. Feel free to reach out, and we’ll help you figure out the best setup to secure your property effectively.

The focal length of the lens also affects the FOV. In short, a shorter focal length (like 10mm) means a wider view but less detail. A longer focal length (like 160mm) narrows the view but increases the detail.

Infrared light is the same as the light that we can see except that the wavelength is longer and outside the range that our eyes can sense.

Your FOV is determined by the lens you choose, and it’s crucial to match the lens to the specific needs of your space. For example:

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