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Arriflex 435 Book $29.95 An intensive guide to the Arriflex 435 Motion Picture Camera. Jon Fauer’s 4th book on Arriflex Cameras, written form the perspective of a cinematographer who owns the equipment he uses. The book is intended for anyone shooting, intending to shoot, or working with an Arriflex 435: cinematographers, camera assistants, rental houses, producers, directors, film students…… |
Arriflex 435 Xtreme Demo
Camera Arri 435
Rotary disc shutter
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(Redirected from Shutter angle)
When the shutter is open, the film is exposed. When it closes, the next frame of film is brought into position by the claw.
Adjusting the shutter angle affects the amount of time that film is exposed to light.
A rotary disc shutter is a type of shutter. It is notably used in motion picture cameras.
Rotary disc are semicircular mirrors which rotate in front of the film gate, and thus expose the film. As the mirror spins it reflects the image into the ground glass so that it can be viewed by the camera operator part of the time. The other part of the time the mirror allows the light to pass on to the film. On simple cameras this shutter is fixed and usually semi-circular. On more advanced cameras the shape of the shutter can be adjusted. This shutter setting is referred to as the shutter angle.
Adjusting the shutter angle controls the proportion of time that the film is exposed to light during each frame interval. The angle of the shutter forms a proportion to the time that each frame of film is exposed:
The primary reason that cinematographers adjust the shutter angle is to control the amount of motion blur that is recorded on each successive frame of film. A tight shutter angle will constrict motion blur. A wide shutter angle will allow it. A 180 shutter angle is considered normal.
Tight shutters create a stuttering stop motion animation look that has become popular in action and war films. In particular tight shutters are used to capture particles flying through the air, such as dirt from an exploding mortar.
On most film cameras the shutter angle is changed by removing the lens and adjusting the shutter with a special tool. This cannot be done while the camera is operating. Some cameras such as the Arriflex 435ES can modify their shutter angle during the shot. This is sometimes referred to as an electronic shutter. An electronic shutter can compensate for the exposure change caused by a speed ramp without changing the aperture and affecting depth of field.
Other types of shutter adjustment such as an out-of-phase shutter, and a fluttering shutter are also possible. Normally the film is held steady in the gate whenever it is exposed to light. Special shutter adjustments allow the film to be exposed while the camera mechanism is actually moving the film to the next frame. In the film Saving Private Ryan, cinematographer Janusz Kaminski used such a shutter adjustment to give his film the look of World War II newsreel photography. Previously, this effect could only be achieved by purposefully mis-adjusting the timing belt of the film advance mechanism in the camera. However, several manufacturers now provide accessories to electronically control the phase relationship of the shutter and film advance mechanisms. One such device is the Timing Shift Box available for the above mentioned ARRI 435 series.
Electronic equivalent
Many video cameras also provide the ability to adjust their shutter. In most cases the camera does not have an actual mechanical shutter. Instead, this adjustment controls the amount of time that the electronic sensor collects light in order to create each successive image. Because electronic cameras do not need to mechanically advance film, it is possible for the shutter to be open for nearly the entire period of each successive frame. At 24 frames per second, it is possible to expose a frame for nearly 1/24th second, achieving longer motion blur otherwise impossible to achieve on film at sync sound speeds.
The term electronic shutter is often used to describe the electronic process of controlling exposure time on a light sensor. The same term is also used in film cameras to refer to a mechanical rotary shutter which can adjust its shutter angle electronically while shooting.
Rotary shutters on still cameras
While the vast majority of rotary shutters are naturally used on motion-picture cameras (as well as projectors), there were some still cameras that employed this type of shutter, notably the Univex Mercury and the Olympus Pen F SLR. Both of these cameras were half-frame 35mm cameras (frame size 18 x 24 mm). The rotary shutter proved to be very simple to construct, accurate and reliable in these cameras, though in the case of the Univex it resulted in a very strange “hump” on top of the camera to cover the shutter disk.
See also
Shutter (photography)
Shutter speed
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Sinhala Film Super Six by Udaya Palliyaguruge at Sandeshaya
Super Six Cast
Roshan Ranawana,
Sanath Gunathilake,
Aruni RajapakseMahendra Perera,
Roodney Warnakula,
Priyantha Senevirathne,
Saranga Disasekara,
Suneth Chithrananda,
Gaminda Priyaviraj
Super Six Story
With a star studded cast that includes Roshan Ranawana and Sanath Gunathilake and debuts by former Miss Sri Lanka Aruni Rajapakse, Director Udaya Palliyaguruge’s Super Six is a film that combines the influences of romance, comedy, action and fantasy. This is the first movie to be launched in Sri Lanka after the end to the war and is also the country’s largest commercial budgeted movie standing at a production cost of Rs 77 million. A totally Sri Lankan cast of over 600, which includes 160 in supporting cast, 80 technical and a host of extras handpicked for their talent ensure a one of a kind movie experience. According to Palliyaguruge who holds a degree in Cinema from the Asian Academy of Film and TV India and Diplomas in Fine Arts and Mass Media as well as Film Making from the New York Film Academy USA coins the genre of this film as “Jollywood’, stating that it incorporates all emotions and senses known to the human mind and spirit. “With cricket being Sri Lanka’s national pastime, Super Six revolves around a group of youth from Moratuwa participating in the Super Sixes, a six a side tournament,” he said at the launch of the movie at a gala event held at Cinnamon Grand Colombo. “There are unpredictable perils of fate and destiny that are intertwined in each of these young people’s lives while they strive to achieve their dreams on the singular platform of the cricket pitch. But the rivalry between the teams spillover into their off-the-pitch lives although the ultimate lessons are the values they learn from each other in this ‘Super Sixes’ tournament.”
As head of Aristo Films which is a 100% Sri Lankan film Production Company formed in 2005, Palliyaguruge also combines the genius of R Sadesh Kumar into the film, revolutionizing the movie industry with their debut into commercial films which films on location in both Sri Lanka and Malaysia and uses technical resources from India as well. This is also the first time that an ARRI 435 camera is being used with Kodak Vision 3 Film, which signals superior film quality. In addition, the Director has removed all stops to his creativity, gaining the expertise of a choreographer and professional stuntmen from India as well as incorporating aerial views from a specially commissioned helicopter to add to the nuances of movie. Seven especially composed songs comprise the movie soundtrack.
As the Director enthuses, the movie is a combination of extraordinary elements brought together to imbue a great movie experience. “Super Six is a first of its kind movie in Sri Lanka, not only from a budgetary angle, but also from the extent of the cast, the catalogue of multi-talented actors of who some are celebrities making their debut in the film world, the technical features of high quality camera and film work, music, locations and even infusion of added features like stuntmen and a highly celebrated Indian choreographer. For me, just like for the Super Six team, this is a dream come true.” (IB)
About the Author
Sandeshaya Sri Lanka – Sri Lankan Art of Actress Models Dancers Singers Beauties Sri Lanka Most Sensitive, comprehensive collection of Actress, Models, Dancers, Singers, Beauties, news zooming in on Sri Lanka, The main responsibilities of the Sandeshaya.org measures to develop the Sri Lankan Art and Artists.