vendredi 20 juin 2014

Digital movie camera


Digital movie cameras for digital cinematography are digital video cameras that capture digitally rather than the historically used movie camera, which shoots on motion picture film. Different digital movie cameras output a variety of different acquisition formats. Cameras designed for domestic use have also been used for some low-budget independent productions.

There are a number of video cameras on the market designed specifically for high-end digital cinematography use. These cameras typically offer relatively large sensors, selectable frame rates, recording options with low compression ratios or in some cases with no compression, and the ability to use high-quality optics. Some of the cameras are expensive and some are only available to rent.
Some of the most used professional digital cinema cameras include:



'Prosumer' and consumer cameras

Independent filmmakers have also pressed low-cost consumer and prosumer cameras into service for digital filmmaking. Though image quality is typically much lower than what can be produced with professional digital cinematography cameras, the technology has steadily improved, most significantly in the last several years with the arrival of high-definition cameras in this market. These inexpensive cameras are limited by their relatively high compression ratios, their small sensors, and the quality of their optics. Many have integrated lenses which cannot be changed.

Standard definition

MiniDV was the predominant standard definition consumer video acquisition format in the early 2000s. Steven Soderbergh used the popular Canon XL2 MiniDV camera while shooting Full Frontal. TheDanny Boyle directed British horror film, 28 Days Later was also shot on MiniDV using the Canon XL1S, albeit with traditional Panavision 35mm film lenses. One of the first MiniDV cameras used on a feature film was the Sony VX-1000, which was used to shoot Spike Lee's Bamboozled.
In 2002, Panasonic released the AG-DVX100, which was the first affordable camcorder to support progressive scan at 24 frames per second, duplicating the motion characteristics of film and allowing for easier transfers to film. This feature made the camera extremely popular with low-budget filmmakers.

High definition

SonyJVCCanon and other vendors have brought high-definition video acquisition to the consumer and prosumer markets with the HDV format. Though it is a high-definition format, HDV video can be recorded to MiniDV tapes, which are inexpensive and widely available. HDV cameras are sold with a wide range of capabilities. Many support progressive shooting modes, and some have sensors with full 1920x1080 resolution (though the HDV format itself can only record 1440x1080 pixels in rectangle pixels, and DVCPRO HD only records at 1280x1080 or 960x720). In addition, some Canon and JVC HDV camcorders have the ability to use high-quality interchangeable lenses, rather than the fixed lenses that are included with most prosumer cameras.


The Canon EOS 5D Mark II is a "full-frame" format HDSLR camera capable of recording 1080p video in at 24, 25 or 30 frames per second, with a file size limit of 4 GB. Film makers are pressing this camera into service as a low-cost way to shoot motion footage. The Canon EOS 7D is an APS-C HDSLR was used to shoot the independent horror film Marianne and Sound of My Voice. Both cameras have been used together to shoot point-of-view (POV) action scenes in The Avengers due to the cameras being relatively cheap and small and therefore easily used to shoot different angles in tight locations.



Canon 5D Mark II Cameras Capture 3D Stop Motion forParaNorman


Over 60 Canon EOS 5D Mark II digital SLR cameras were used to shoot ParaNorman.




Five camera teams and crews of animators, puppeteers and staff from LAIKA animation studios recently relied on a garrison of 60 EOS 5D Mark II SLR cameras from Canon U.S.A. to help bring the new 3D feature film,ParaNorman to screens. The EOS 5D Mark II DSLR cameras captured frame-by-frame stop-motion animation of puppet “actors” in this new horror comedy about a small-town boy who speaks to ghosts and must battle an assortment of otherworldly creatures to save his town from doom.                                
August 22, 2012 | By 


Iron Man 2 Adds The Canon 5D Mark II DSLR Digital


Iron Man 2 Adds The Canon 5D Mark II DSLR Digital Camera To Its Production ArsenalCanon’s 5D Mark II DSLR shows its mettle during production of Iron Man 2f

Movies featuring comic-book superheroes are among the most popular films today, with the spectacular exploits of these colorful characters rendered more convincingly than ever thanks to today’s digital imaging technologies. Among the many advanced filmmaking tools recently used by cinematographer Matthew Libatique to shoot the blockbuster hit Iron Man 2 were Canon EOS 5D Mark II Digital SLRs. Libatique, an accomplished member of the American Society of Cinematographers, explained that the Canon cameras were indispensable for capturing crucial images in a key action sequence.
“Without a doubt, we couldn’t have gotten the shots any other way,” Libatique says. His comment refers to a scene in Iron Man 2, in which the titular character’s alter ego Tony Stark drives a race car in the Historic Monaco Grand Prix and is attacked by super-villain Ivan Vanko. Canon 5D Mark II Digital SLRs served multiple roles in photographing this important sequence. One was to capture moving background plates on location in the famous European racing city; another was to provide crash-cam footage amid the scene’s high-speed auto race.

Impressive Shots

Libatique brought his film crew to Monaco for authenticity in shooting their background plates, which were later integrated with live-action footage of racing cars shot in Hollywood. The plates were captured using a motion-picture camera and several 5D Mark II Digital SLRs mounted on a chase vehicle that kept pace with the race cars as they sped through Monaco’s winding streets.
“We mounted the Canon cameras on all four sides of the vehicle to get background plates for Tony Stark driving on the race track,” Libatique explained, noting that the small size of the 5D Mark II Digital SLRs enabled his crew to obtain more coverage than would have been possible with an equal number of (larger and heavier) film cameras.
“There is no other camera that can really get into some of the tight spots that the Canon 5D Mark II can, and with the ease that it can,” he added. “We got extra angles in spots that we wouldn’t have been able to get in 35mm without a lot more effort.”
Libatique’s comment applied even more to the crash-cam shots he and his crew captured for the racing sequence. “We had extremely dangerous circumstances, but traditional crash-cams are cumbersome and they take time to set up,” he explained. “With the Canon cameras we were able to easily change lenses and make quick decisions. The setup time was ten times faster than with a film camera, and we could mount the 5D Mark II cameras in all sorts of places.”
“It’s probably the most impressive shot in that sequence, and it was captured by a 5D Mark II camera.” —Cinematographer Matthew Libatique
Libatique and his crew sealed several Canon 5D Mark II DSLRs inside heavily padded Pelican cases with holes cut out for the lenses. These were then placed at strategic locations around the track to capture dramatic footage of the race cars zooming by.
“We set 5D Mark IIs down on the race track and had the vehicles pass by them, crash near them, and run right into them. It was very impressive to have the 5D Mark II cameras hold up and then pop-out their cards and get the shots we wanted.”
Canon 5D Mark II DSLRs were also mounted directly on some of the cars for additional point-of-view shots. These included Tony Stark’s car, which was destroyed by Ivan Vanko’s Whiplash weapon.
“The camera is mounted in the front of Tony Stark’s car as it flies up into the air,” Libatique said. “It’s probably the most impressive shot in that sequence, and it was captured by a 5D Mark II camera.”

Exceeding Expectations

“The new manual exposure firmware introduced during the shoot enabled us to expose 5D Mark II imagery more similarly to the film we were shooting,” Libatique noted. “That sealed it for us. Once that manual firmware was installed we knew that we were going to be using the 5D Mark II.”
Subsequent workflow tests at a major Hollywood digital intermediate facility confirmed that motion sequences captured using the Canon 5D Mark II could seamlessly match 35mm film.
“We did our exposure tests and the image quality exceeded my expectations for cutting into a 35mm sequence,” he said.

New Production Applications

Although he has lensed Iron Man 2 and other major Hollywood features, Libatique began his career shooting independent films, an area he says is particularly well suited for the Canon 5D Mark II.
“I’m interested in low-budget filmmaking, and in what it can provide,” he said. “If I were shooting an indy film of any narrative length, I would probably choose to shoot it with the 5D Mark II, as opposed to one of the small HD video cameras offered by various manufacturers. I think we’ve always been in search for a smaller camera, and—right off the bat—you can’t get much smaller than a SLR. This is an ergonomic advantage. On my last film I shot subway scenes in New York, and because the 5D Mark II was so much lighter to carry around in the subways, it didn’t attract a crowd.”
Although compact, the Canon 5D Mark II features a full-frame 21.1-megapixel CMOS image sensor for exceptional sensitivity and low-light performance. The camera also can be fitted with Canon’s full line of EF lenses. Libatique noted that he favored the wide-angle 14mm and 24mm lenses and the ultra-wide 16–35mm zoom lens for Iron Man 2.
“I’m a big fan of Canon lensing, and I like the focusing and the depth of field that it creates—or lack of it, in some cases. It just feels more cinematic. The correlation of the 5D Mark II, and its chip size, and the Canon lenses all keep things in a sort of a ‘35mm language’ for me.”
Libatique sees the Canon 5D Mark II camera as a still evolving motion-image capture tool with more production applications yet to be explored. “It definitely has the ability to have its own look,” he said. “You can integrate it with film, but I also think you can use it to make disparate-looking images. With all of the 5D Mark II’s manual functions, detail settings, contrast settings, and saturation settings, it’s like having another film stock at your disposal to create a different look. I’m considering using it for flashback sequences on the next film I’m shooting.”
“As for Iron Man 2, I was very impressed by the Canon 5D Mark II shots we were able to cut in with the live action,” Libatique concluded. “The camera was invaluable for shooting the Monaco sequence, which was vital to the storytelling of the entire film.”
- See more at: http://www.usa.canon.com/cusa/professional/standard_display/Markets_Film_Iron_Man_2#sthash.Tf8q0VS1.dpuf