广角镜头(Wide-angle lenses)也是一项普遍的产品。索尼、国际(Panasonic)、卡西欧、三星以及佳能(Canon )数位相机都可 … www.epochtimes.com|基于27个网页 2. 广角定焦镜 PENTAX ... ... 1.Ultra-Wide-Angle Lenses( 超广角定焦镜) 2.Wide-Angle Lenses(广角定焦镜) 3.Standard Lenses( 标准定焦镜) ......
Wide-angle lenses also have a large depth-of-field, which makes it easy todeep focus, i.e., put the entire image is in-focus all the way from the foreground to the background. As camera shake is less obvious on wide-angle lenses, you can shoot handheld with slower shutter speeds. T...
either. Wildlife photographers do occasionally use wide-angle lenses to capture animal portraits, for instance – it just takes a lot of planning (and generally involves remote-controlled cameras and/or blinds). On the other hand, street photographers do occasionally use telephoto lenses to shoot w...
The best wide-angle lenses usually have features such as a maximum aperture of f/2.8 or wider, for ashallow depth of field, image stabilisation or autofocus. They might be made with an aspherical lens element, which produces sharper images and reduces distortion. Their overall build quality is...
The present invention provides new projection schemes for wide angle imaging lenses ro- tationally symmetric about optical axis wherein the field of view of lenses and the size of image sensors are directly reflected without any reference to the effective focal length of the lenses. This invention...
Wide-angle lens and panoramic imaging system including seven lenses of -++-++ refractive powers and a reflective element A wide-angle lens in the following order from an object side toward an image plane includes: a first lens, a second lens, a third lens, a fourth lens, a fi... LI ...
The fifth and sixth lenses are combined, forming a cemented lens having positive refractive power. The fifth and sixth lenses are made of materials having Abbe numbers of greater than or equal to 50 and less than or equal to 30, respectively. A surface of the seventh lens facing the image...
Define Wide angle lens. Wide angle lens synonyms, Wide angle lens pronunciation, Wide angle lens translation, English dictionary definition of Wide angle lens. n a lens system on a camera that can cover an angle of view of 60° or more and therefore has
(latitudinal CA). With increasing distance from the image center, the three primary colors become slightly offset, causing a color-fringe effect around contrasting edges (Fig. 6-8). Very wide-angle lenses and the extreme focal lengths of super-zoom lenses are most prone to chromatic aberration...
Method for correction of barrel distortion due to wide-angle lenses based on a polynomial; 广角镜头桶形畸变的多项式修正方法 2. In order to correct the barrel distortion of wide-angle lens, a new method based on spline function was proposed. 为了修正广角镜头的桶形畸变,本文提出了一种基于样条...