DOF simulator

Focal Length: The focal length of a lens also can appear to have an effect on DOF. A wide-angle lens with a short focal length tends to produce a deep DOF, making most of the picture appear to be more in focus. A telephoto lens with a long focal length tends to produce a shallow DOF because of the narrow angle of view and increased magnification - less of the background can be seen and any portion of the background that is already out of focus is magnified. A 200mm lens will show a very shallow depth of field compared to a 50mm lens at the same distance; of course, to maintain the size of your subject in the frame, you would need to adjust your distance.

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IMPORTANT: The amount of DOF can vary significantly depending on the sensor size of the camera. Most compact point-and-shoot cameras have very small sensors and cannot achieve a shallow DOF.NOTE: The type of blur mentioned in this solution is not related to blur caused by subject movement.

This super wide-angle Pan, Tilt, and fixed zoom camera has a field of view of 138° with no video distortion. With an eight-megapixel full glass fixed lens, the BG-CAM-USB4K can achieve resolutions up to 4K@30Hz. With superior imaging and simple controls, the BG-CAM-USB4K offers a great deal of performance. With its outstanding viewing angle this camera is able to capture an entire meeting space in crystal clear 4K detail. Flexible control options make this device a great choice for any installation.

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Depth offield calculator

Aperture: Different f-stop settings for aperture provide varying degrees of blur. A wide aperture (indicated by a low f-stop number) provides a shallow DOF, resulting in the main subject being in focus and the foreground/background being blurred; it is useful when taking portraits or when using a macro lens and brings more attention to your subject. A narrow aperture (indicated by a higher f-stop number) provides a deep DOF and results in the entire photo appearing in focus; it is useful when taking landscape or wide-angle photographs.

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The BG-CAM-USB4K has USB 3.0 plug and play connectivity, making it a great choice for use with video conferencing apps like Skype, Zoom, Google Meet, and more. To achieve its high-quality resolution of 4K@30Hz at fixed focus, this camera utilizes a 1/2.1” HD Color 8.29MP CMOS sensor. This camera utilizes a step drive motor mechanism and precision motor drive controller to ensure that PTZ functions work smoothly and quietly to avoid being disruptive. H.264, H.265, and MJPEG video compression options are also supported by this camera.

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Depth of focus

Distance: Moving the camera closer to your subject can cause blurring in the background and foreground of the picture, producing a shallow DOF. Moving away from your subject has the opposite effect; the entire picture comes into focus providing a deep DOF.

There are several control options available for the BG-CAM-USB4K, including the IR remote, RS-232, and RS-485 (VISCA, Pelco-D/P) serial control. There are 255 preset positions available with the camera, nine of which are available to operators when using the IR remote control. Plug and play connectivity makes this camera easy to use with a laptop, desktop, or other device on Windows, MacOS and Linux for use with video conferencing software.

Depth of field (DOF) refers to how much a photograph appears to be in focus. If the main subject is in focus, but the foreground or background is blurred, the photo is said to have a shallow DOF. If most all of the photo is in focus, including the foreground and background, the photo is said to have a deep DOF. It is determined by the distance between the camera and the subject, as well as the aperture (aka f-stop) and focal length of the lens.