Arriflex Alexa
Encyclopedia
The Arri Alexa is a film-style digital motion picture camera
made by Arri
first introduced in April 2010. The camera marks Arri's first major transition into digital cinematography
after smaller previous efforts such as the Arriflex D-20
and D-21
. The Arri Alexa features an advanced electronic viewfinder
, modularity, PL mount lenses, and a 35mm-width
CMOS sensor
shooting up to 2.88k resolution. New features also include recording to the digital intermediate codec ProRes 4444
and ProRes 422
in camera, simplifying the post production workflow.
The camera is designed for use in high budget feature films, television shows, and commercials, and is widely seen as Arri's answer to the growing acceptance of using the Red One, along with lower resolution cameras like the Sony
CineAlta
(35 mm, 1080p), Panavision
Genesis (35 mm, 1080p), Thomson Viper FilmStream (2/3", 1080p) to shoot feature films.
According to cinematographer Roger Deakins
, the Alexa’s tonal range, color space and latitude exceed the capabilities of film. Also, in terms of speed, resolution and clarity of image, the Alexa produces a better image than film cameras. "[T]his camera has brought us to a point where digital is simply better”, says Deakins.
Digital cinematography
Digital cinematography is the process of capturing motion pictures as digital images, rather than on film. Digital capture may occur on video tape, hard disks, flash memory, or other media which can record digital data. As digital technology has improved, this practice has become increasingly common...
made by Arri
Arri
-History:Arri was founded in Munich, Germany as Arnold & Richter Cine Technik in 1917, named after founders August Arnold and Robert Richter. They produce professional motion picture equipment, digital and film cameras and cinematic lighting equipment...
first introduced in April 2010. The camera marks Arri's first major transition into digital cinematography
Digital cinematography
Digital cinematography is the process of capturing motion pictures as digital images, rather than on film. Digital capture may occur on video tape, hard disks, flash memory, or other media which can record digital data. As digital technology has improved, this practice has become increasingly common...
after smaller previous efforts such as the Arriflex D-20
Arriflex D-20
The Arriflex D-20 is a film-style digital motion picture camera made by Arri first introduced in November 2005. The camera's attributes are its optical viewfinder, modularity, and 35mm-width CMOS sensor. The camera was discontinued in 2008 and the Arriflex D-21 was introduced.- Overview :The D-20...
and D-21
Arriflex D-21
The Arriflex D-21 is a film-style digital motion picture camera introduced by Arri in 2008 to replace their earlier generation Arriflex D-20.- Overview :...
. The Arri Alexa features an advanced electronic viewfinder
Electronic viewfinder
An electronic viewfinder or EVF is a viewfinder where the image captured by the lens is projected electronically onto a miniature display. The image on this display is used to assist in aiming the camera at the scene to be photographed.-Operation:...
, modularity, PL mount lenses, and a 35mm-width
35 mm film
35 mm film is the film gauge most commonly used for chemical still photography and motion pictures. The name of the gauge refers to the width of the photographic film, which consists of strips 35 millimeters in width...
CMOS sensor
Active pixel sensor
An active-pixel sensor is an image sensor consisting of an integrated circuit containing an array of pixel sensors, each pixel containing a photodetector and an active amplifier. There are many types of active pixel sensors including the CMOS APS used most commonly in cell phone cameras, web...
shooting up to 2.88k resolution. New features also include recording to the digital intermediate codec ProRes 4444
ProRes 4444
ProRes 4444 is a lossy video compression format developed by Apple Inc. for use in post production that can handle standard definition, high definition, and 2K material. It was introduced with Final Cut Studio as another in the company's line of intermediate codecs for editing material but not...
and ProRes 422
ProRes 422
ProRes 422 is a standard-definition and high-definition lossy video compression format developed by Apple Inc. for use in post production. It was introduced in 2007 with Final Cut Studio 2 and is comparable to Avid's DNxHD codec which has the same purpose and uses similar bit rates...
in camera, simplifying the post production workflow.
The camera is designed for use in high budget feature films, television shows, and commercials, and is widely seen as Arri's answer to the growing acceptance of using the Red One, along with lower resolution cameras like the Sony
Sony
, commonly referred to as Sony, is a Japanese multinational conglomerate corporation headquartered in Minato, Tokyo, Japan and the world's fifth largest media conglomerate measured by revenues....
CineAlta
CineAlta
Sony's CineAlta 24P HD Cameras are a series of professional digital video cameras that offer many of the same features of a 35mm motion picture film camera.- Concept :...
(35 mm, 1080p), Panavision
Panavision
Panavision is an American motion picture equipment company specializing in cameras and lenses, based in Woodland Hills, California. Formed by Robert Gottschalk as a small partnership to create anamorphic projection lenses during the widescreen boom in the 1950s, Panavision expanded its product...
Genesis (35 mm, 1080p), Thomson Viper FilmStream (2/3", 1080p) to shoot feature films.
According to cinematographer Roger Deakins
Roger Deakins
Roger Antony Deakins, ASC, BSC is an English cinematographer best known for his work on the films of the Coen brothers. Deakins is a member of both the American and British Society of Cinematographers...
, the Alexa’s tonal range, color space and latitude exceed the capabilities of film. Also, in terms of speed, resolution and clarity of image, the Alexa produces a better image than film cameras. "[T]his camera has brought us to a point where digital is simply better”, says Deakins.
Sensor Information
The Alexa's ALEV III sensor has 3392x2200 pixels that can be used for generating an image. There are more pixels than this, but those extra pixels are used for calibration and other purposes and not for generating an image.2011
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Similar cameras
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