Showing posts with label camera viewfinder. Show all posts
Showing posts with label camera viewfinder. Show all posts

Thursday, November 20, 2008

GripFun Director's Viewfinder


A Directors viewfinder or director's finder is a Viewfinder used by film directors to see the scene as seen by the camera lens. In appearance it is like a monocular telescope that usually hangs around the neck.




While modern film cameras are relatively light weight, earlier models were quite heavy and moving them required some effort. The director's finder allows the directors to be more productive as they can plan where to place the camera and which lens to select for the camera without the need to move the larger film camera.


Most viewfinders allow different focal lengths and film sizes. In some models also the aspect ratio is selectable. Some viewfinders allow the mounting of cinema lenses.


GripFun rotating viewfinder is the most affordable large size director's finder. It is relatively compact, but includes all standards film & TV formats and all standards aspect ratios including 16:9. The aspect ratio adjustment ring features convenient click stops. It makes your photographing enjoyable.

Saturday, October 18, 2008

professional camcorder viewfinder


The TL-350VF is a LCD viewfinder designed to replace expensive Panasonic Viewfinder AJ-VF15.

Main Features:
*Display size: 3.5"
*Aspect ratio: 4:3
*Resolution: 960x234
*Brightness: 400Cd/㎡
*Contrast: 150:1
*Responding time: 30ms
*Working format: Analogue
*Color System: PAL/NTSC(auto detect)
*Video input: 20 pins general cable
*Tally: Yes
*Input voltage: 12V DC
*Working temperature: -20℃-60℃
*Viewing angle: left 60℃/right 60℃/up15℃/ down 35℃
*Power consumption: ≤3W/0.25A
What's Viewfinder:
In photography, a viewfinder is what the photographer looks through to compose, and in many cases to focus, the picture. Most viewfinders are separate, and suffer parallax, while the more complex single-lens reflex camera lets the viewfinder use the main optical system. Viewfinders are used in many cameras of different types: still and movie, film, analog and digital. A zoom camera usually zooms its finder in synch with its lens, one exception being rangefinder cameras.

Viewfinders can be optical or electronic. An optical viewfinder is simply a reversed telescope mounted to see what the camera will see. Its drawbacks are many, but it has one main advantage: it consumes no power. An electronic viewfinder is a CRT, LCD or OLED based display device, though the former is rarely used today due to size and weight. In addition to its primary purpose, an electronic viewfinder can be used to replay previously captured material, and as an on-screen display to browse through menus.

It is not uncommon for a camera to have two viewfinders. For example, a digital still camera may have an optical viewfinder and an electronic one. The latter can be used to replay previously captured material, has an on-screen display, and can be switched off to save power. A camcorder may have two viewfinders, both electronic. The first is viewed through a magnifying eyepiece, and due to a rubber eyepiece it can be viewed perfectly even in bright light. The second viewfinder would be larger, of a higher resolution, and may be mounted on the side of the camera. Because it consumes more power, a method is often provided to turn it off to save energy.

Some special purpose cameras do not have viewfinders at all. These are, for example, web cameras and video surveillance cameras. They use external monitors as their viewfinders.