1. Ultra-wide lenseshave a focal length of less than 24mm (all of these numbers are in full-frame terms). They capture incredibly broad views. However, because of this, they often present a distorted or exaggerated view of the world. They are great lenses forlandscape photography, and they...
Focal Length and Angle of View Therefore, optics are used to bend light in a way that moves the nodal point forward away from the sensor, making the focal length distance purely theoretical. This is why, in modern photography, a listed focal length is merely used to indicate that lens’ ...
Both compression and other types of distortion are useful tools not only in photography but also videography, where the choice of focal length can impact what is emphasized in a scene. Also, a great example of how these effects impact how a face is rendered to the viewer can be seen via ...
However, only a few dSLRs use full-frame image sensor, with most using a smaller image sensor, usually APS size (or roughly half-frame). That is why you will read that a focal length multiplier of, say, 1.6 needs to be applied to the focal length of the lens to obtain the "true ...
In optics and photography, the focal length is the distance from the optical center of the lens to the imaging sensor when the lens if focused at infinity. The focal length is measured in millimeters. Focal length directly affects the size of the image captured, as it changes the angle of...
Photography is full of fancy terms, but we are here to explain it all to you in simpler terms. Today we are focusing on focal length.
What is Camera Focal Length? Focal length is a number that is vital to photography and photogrammetry but often misunderstood. What is focal length? A strict technical definition of focal length is difficult without providing a lot of background in lens theory, so we will use a simplification....
What is Focal Length? We often use focal lengths to describe the size of the lens. This optical measurement refers to the shape of the lens, not its physical dimensions. A technical definition of lens size is the distance between the rear nodal point and the focal point of the lens, whil...
The distance measured along the optical axis of the lens from the rear nodal point to the plane of best average definition over the entire field used in a camera. See also focal length. Dictionary of Military and Associated Terms. US Department of Defense 2005. ...
This would be a mildly wide lens according to the usual definition, since the focal length is somewhat shorter than the sensor width. However, this image is only 3 megapixels, while the camera itself delivers 12 megapixels. It's entirely possible that this image was cropped, which would ...