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Glossary Of Photography Terms [5]

V Vibration Reduction Vibration Reduction (VR), also known as Image Stabilization (IS) or Optical Stabilization (OS), is a technology used in camera lenses and digital cameras to reduce the effects of camera shake and motion blur when shooting handheld or at slow shutter speeds. Vibration Reduction systems use gyroscopic sensors and electromechanical actuators to compensate for unwanted camera movements by shifting lens elements or adjusting the camera's image sensor in real-time to counteract shake and vibrations. This helps photographers achieve sharper images with reduced blur, especially in low light conditions or when using telephoto lenses with longer focal lengths. Vibration Reduction technology is particularly beneficial for handheld photography, telephoto shooting, and video recording, allowing photographers to capture clear, steady images without the need for a tripod or additional support.
View Camera A view camera, also known as a large format camera or bellows camera, is a type of camera that uses a flexible accordion-like bellows to connect the lens and film plane, allowing for extensive movements and adjustments of both the lens and the film or digital back. View cameras offer precise control over perspective, focus, and depth of field through movements such as tilt, swing, rise, fall, and shift, which enable photographers to manipulate the plane of focus and correct perspective distortion. View cameras are commonly used in architectural photography, landscape photography, studio photography, and fine art photography, where precise control over composition and perspective is essential. They typically use large format film or digital sensors to capture high-resolution images with exceptional detail and image quality.
Viewfinder A viewfinder is an optical or electronic device used in cameras to frame and compose images before they are captured. Viewfinders provide photographers with a preview of the scene through the camera lens, allowing them to adjust composition, focus, and framing before taking the shot. There are several types of viewfinders, including optical viewfinders (OVFs) and electronic viewfinders (EVFs). Optical viewfinders use mirrors and prisms to reflect light from the lens to the photographer's eye, providing a direct optical image of the scene. Electronic viewfinders, on the other hand, use digital displays to present a real-time electronic image of the scene, with additional features such as exposure information, focus peaking, and histogram display. Viewfinders are essential components of cameras, ranging from digital SLRs and mirrorless cameras to rangefinders and compact point-and-shoot cameras.
Viewfinder Grid A viewfinder grid is a visual overlay displayed in the camera's viewfinder or on the camera's LCD screen to assist photographers with composition and alignment. The grid consists of horizontal and vertical lines that divide the frame into a grid pattern, typically with evenly spaced lines or a rule of thirds grid. Viewfinder grids help photographers apply compositional techniques such as the rule of thirds, leading lines, and symmetry to create well-balanced and visually appealing images. They provide reference points and guidelines for positioning subjects, horizons, and key elements within the frame, allowing photographers to achieve better framing and alignment while composing their shots.
Vignetting Underexposure of image corners produced deliberately by shading or unintentionally by inappropriate equipment, such as unsuitable lens hood or badly designed lens. A common fault of wide-angle lenses, owing to reflection cut-off, etc. of some of the very oblique rays. May be caused in some long-focus lenses by the length of the lens barrel.