How does a larger camera perspective being calculated with given camera sensor size, aperture, resolution, fov degrees, and fov focal length?

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I’m looking into getting an action cam for the first time and I’ve been lost into which one to get. I’ll mainly use it to film from first person perspective on a mountain bike so a wider coverage of what a camera could capture is important to me. I also looked at the 360 X3 and has been lost to what is its camera sensor size on single lens mode and at what resolution has the wider fov.

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Anonymous 0 Comments

Sensor size is just that, the size of the sensor. The larger the sensor the more light is captured and the better the clarity and faster the shutter in low-light.

Resolution is how many pixels are on the sensor. The more pixels the higher the clarity, especially when zooming/cropping.

Aperture is how wide open the lens is. All the wide open lets in the most light and has the most “depth of field” (aka bokeh, where the background is blurred). You would close the aperture when you need to darken the image or when you don’t want as much blur (say you want a close and far subject both in focus).

FOV stands for “Field of View” aka how wide the image is. A 180° FOV means from all the way left of you to all the way right of you. Wider lenses capture more of the environment but also have more distortion (such as the fisheye effect).

For the Insta360 X3, the FOV depends on the mode and settings (stabilization reduced FOV for instance as it is software based and needs to crop to align the pixels frame by frame), but from what I read it ranges from 140° to 170°.

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