![]() ![]() wide-angle lenses (as used in iPhones) can cause a barrel distortion effect on images taken at a close distance.even though close-up photos will distort images of 3D objects, there does not appear to be any distortion when photographing a 2D image such as a ruler.close-up photos will enlarge nearer facial features such as nose and forehead, as a short camera distance will magnify the discrepancy in camera distance between different features (as opposed to far-away images in which the distance variation between features is 'diluted' due to the long camera distance).Here is my current understanding of the issue: If the webcam does include optional software, it should be purely additive and easy to use.I am researching how to correct any facial distortions seen on an iPhone's front camera. Extra software: Most webcams will work without any extra software.But overall, webcams are relatively simple, mostly stationary devices that don’t tend to break often. A longer warranty: Most of the webcams we tested had two- or three-year warranties.Almost all of the cameras we tested had a field of view between about 70 and 80 degrees the lowest-end model had a 60-degree field of view, and the highest-end model had a 90-degree field of view. Low profile design: Low profile design allows the camera to blend into its. Flexible viewing: Multiple live viewing options with camera-side dewarping for easy monitoring. 360 coverage: Cover wide areas with no blind spots. But for video chatting, a larger view isn’t that important, and most webcams offer roughly the same field of view anyway. When ceiling mounted, fisheye cameras have a 360 field of view, making them ideal for single camera installations. A larger field of view: A larger field of view (measured diagonally) means the people you’re chatting with can see more of you and your room at once.Most mid-level to high-end webcams have a glass lens, but ultimately the camera’s resolution, autofocus, and brightness/color adjustments have a larger impact on image quality. A glass lens: Glass lenses generally make for better picture quality than plastic ones.But if you need better sound quality, you should consider either a USB microphone, or our picks for office, gaming, or Bluetooth headsets with integrated mics. A decent microphone: Most webcams include a noise-cancelling microphone so that you can be easily heard when you’re chatting in a room with a little ambient noise (like a ceiling fan).Stands that also allow the cameras to sit independently on a table or desk, that allow the camera to swivel, or that include a tripod mount are a bonus. A good clip or stand: Any webcam needs a clip that makes it simple to attach it to a variety of laptop screens and desktop monitors, and it should be easy to tilt the mic up or down to adjust the view.Automatic brightness and color correction: You should be able to manually adjust these settings if you really want to, but any good webcam should give you a decent image without requiring you to fiddle with settings.This feature allows webcams to adjust their focus when you move closer to or farther away from the camera or when you hold something up in front of it, so you always look sharp. Autofocus: We considered only those models that support autofocus.The protective fluorine coat of this Nikon NIKKOR fish-eye lens provides resistance to moisture and. Its zoom capability captures 180-degree circular images of vast horizons, and it lets you take close-up shots of subjects as close as 0.5 feet. Some high-end cameras support 720p video at 60 frames per second, which makes for smoother video but isn’t necessary for most people who just want to look better in video calls. Compose wide-angle shots creatively with this 8-15mm Nikon NIKKOR fish-eye lens. Resolution and frame rate: We favored cameras that support at least full high-definition video (1920×1080, or 1080p resolution) at 30 fps, which is useful for the streaming apps that support it and for video recorded locally.But that certification is unnecessary for most top webcams today to work with those programs. Some other webcams that cost more are “designed for business,” meaning mostly that they’re certified to work with Skype and other video software. Webcams over $100 often offer a larger field of view-90 degrees versus 70 to 80 degrees-which is helpful if you want to show more of the room, such as a conference table with many participants. Even professional streamers or YouTubers with more demanding requirements don’t need to spend over $100. It reminds us that there’s a ton of distortion in photography. Price: A webcam with great video quality doesn’t have to cost much. The fisheye is a slap to the face of today’s world embracing a sterile and clean look. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |