A webcam with high resolution is essential for most applications: the lower the resolution, the more grainy the image on the screen. Most modern webcams only support high definition video capture. Look for a video capture resolution of 720p or higher. If you decide to opt for a standard resolution, a decent resolution start point is 640 x 480, and higher is better for most cases, but none of the settings will provide the video quality you can expect from a webcam High Definition.
If you plan to publish videos on social networking sites, low-quality video can negatively affect your viewers. However, high-definition webcams increase the price of the webcam, so do not hesitate to skip this feature if you only want a webcam to chat by video occasionally. Currently, we can find cameras up to 4K resolutions, so the possibilities are very good without buying a professional camera for it.
If you are only going to use the webcam to talk to friends or family from time to time, surely a low-resolution model will suffice. On the other hand, if you want it for business, it is better to opt for an HD drive. Depending on the type of video chat you do, you may want to include special effects, and many webcams come with these capabilities. If the one you want doesn’t, you can probably download the manufacturer’s special effects software.
Always look at your FPS
A high frame rate is also important for many users. Low frame rate webcams produce images that stutter and periodically freeze on the viewer’s screen. Speeds are measured in frames per second, so look for “fps” in the webcam package. You must stay above 15 fps to stream video, and even better with a frame rate of 30 fps or more.
Lens Quality And Field Of View
The type of lens also affects webcam performance. Some entry-level units have plastic lenses, but it is advisable to opt for a glass lens, which dramatically improves performance without significantly increasing the price. Autofocus and automatic light adjustment technologies are also useful in webcams, especially if you will use them in a dark room.
The next aspect to consider is, of course, the ability to zoom the camera. This utility serves to increase or decrease the distance of the plane if we want our viewers to see something, in particular, we will increase the zoom and what we are showing will be larger. Otherwise, we will have a zoom out that will cause a wider plane. We can distinguish two types of zoom:
- The Physicist: The lens itself, through a system of mirrors, is able to approach an object or move away, as if it were a telescope. This zoom is the good one, the real one, the one that physically brings the vision closer to an object, but few webcams have it.
- The digital: that makes an approach through the software itself, increasing the pixelated network of an area. This type of zoom is not done physically, but by creating new pixels based on what the camera captures. It is much worse than the physical.
The zoom is not indispensable for almost any case, so it is something in principle, secondary to a webcam.