Showing posts with label Movie-making. Show all posts
Showing posts with label Movie-making. Show all posts

Wednesday, March 7, 2012

Canon 5D Mark III Review for filmmakers/Videographers!



Disclaimer: This post talks only the Video side of the Camera

Canon(Released on 2nd March 2012) did the best it can in order to bring Full HD movies to a new height.Although the 5D Mark III won’t bring Ultra HD resolution, there are some improvements that worth talking about. The EOS 5D Mark II DIGIC 5+ processor in combination of the new sensor will improve image quality of videos and minimize the appearance of moire, and many kind of artifacts that aren’t welcome when shooting video clips.
With the 5D Mark III you have full manual control over exposure and the type of video compression (ALL-I and IPB are supported). For those who don’t know what ALL-I and IPB means, here’s a short explanation:
  • IPB – B stand for Bi-directional compression. This type of compression works by predicting the content of future frames. Offers better compression compared to ALL-I.
  • ALL-I – or ‘Intra-coded Frame’ is different from IPB because all frames are treated as key frames. No further compression is applies, just a frame compression. This results in better image quality, but up to 3 times the file size. Editing individual frames doesn’t hurt image quality. Furthermore, playing ALL-I compresses files take less computing resources in playback. ALL-i is also referred to as “Editing friendly” format.
So ALL-I only compress the information for the current frame, but not the information between those frames. IPB compression use interpolation and therefore requires more computing processing power, as well provides lower image quality because it deals with part of the image that is the same, and the data that is changed from frame to frame. Because repeated data can be stored only once, the intraframe IPB offers much superior compression but at the cost of image quality and video editing capabilities.




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The Canon EOS 5D Mark III can capture videos in various frame rates and resolutions (including size/min per compression method):
  • 1080p (1920×1080) @30/25/34 fps
    IPB: 235MB / minute
    ALL-I: 685MB / minute
  • 720p (1280×720) @60/50 fps
    IPB: 205MB / minute
    ALL-I: 610MB / minute
  • 480p (640×480) @ 30/25 fps
    IPB: 78MB / minute
The 5D MKIII features a soft-touch mode dial at the rear of the camera, which gives you the option to change video settings,the mic won’t pick up the clicking sound. Other than that, the 5dMKIII features a headphone jack for monitoring audio in greater precision and a 3.5mm mic jack for connecting external stereo microphone for a better sound quality. Now you can record a single video up to 29 minutes and 59 seconds.
Rolling shutter distortion (sometimes called “jello” distortion) is a long standing enemy of DSLR video. DSLR sensors do not typically read out the entire frame in one instant. Instead, they read downwards from the top to the bottom of the sensor. This means that the top of the frame is recorded slightly before the bottom and, if the camera pans quickly during this time, the image is skewed like a wobbling jelly.
Improving the colour sub-sampling from 4:2:0 to 4:2:2 would be welcomed by many, especially those that typically do a lot of heavy grading (colour work). 
Increasing the colour depth from 8 bit (256 possible values) to 10 bit (1024 possible values) could also give a nice improvement in video quality in many situation.

Color Sub-sampling in Canon 5D Mk III:- The 5D Mark II can output a video signal via its HDMI port and, if you want to, you can record this video stream to an external recorder such as a Nanoflash or Atomos Ninja. These devices are capable of recording at a very high quality, much higher than the Canon 5D Mark II’s internal recording. Unfortunately, the feed that the Mark 3 provides is 4:2:0 compressed video. The new Nikon D4 and D800 can now both output clean (i.e. uncompressed 4:2:2) HD feeds via HDMI meaning that they can be readily used with these external recorders.
Canon 5D Mk III Indian Price: Rs.1,74,950 approx.

Saturday, February 11, 2012

DSLR Filmmaking in India (Bollywood)!



Stanley Ka Dabba director Amol Gupte, for example, didn’t want to intimidate the child actors in his movie with big cameras and burning lights. So he used a small Canon 7D DSLR (5.8 x 4.4 x 2.9 inches) to shoot the entire flick.
                                     
“It didn’t need any set-up time and would ensure the kids weren’t pakaoed too fast,” he says. “Children lose their spontaneity if they are made to wait while lights and set extensions are adjusted.” The DSLR worked well in low-light and SKD was shot without any extra lighting.
                                                                                              
Indeed, shooting with a DSLR is convenient for different reasons to different moviemakers. Sometimes it helps save costs and time, and sometimes its compactness allows the director to experiment more.
Where no camera has gone before“More than the ‘cost and time-saving’ factor, I was most attracted to the DSLR because its size made it possible to create a different language of cinema in terms of angles and movements,” Varma says.

The weight of the Canon 5D Mark II is 810gms when compared to the 6.5kgs of film cameras. “This is the technology of the future. It can do whatever a conventional camera can do and a lot more,” he says, while recommending these gadgets for suspense, action and horrormovies.
The DSLR can go to places a film camera cannot. It can be smoothly tracked under a bed where a conventional camera on a trolley cannot fit; it can pass between window grills, and even trace the body of an actor from foot to face.

Other filmmakers who’ve experimented with DSLRs include Raj Nidimoru who used it to shoot city scenes for the title track of Shor in the City.

“It’s handy and unobtrusive,” Nidimoru says. “The camera, because of its size, didn’t attract attention and could capture candid shots of traffic in Mumbai. It was handled easily from the backseat of a two-wheeler that sped through traffic.
“We’re always looking for smaller devices,” says the US-based filmmaker of Indian origin who will be shooting with custom-made cameras, half the size of DSLRs for his next film.
                                      
Budget bytesThe minimal size of DSLRs also allows for incognito shooting, thus avoiding the red-tapism of seeking permissions to shoot, say directors. Permissions to shoot in cities such as Mumbai are a long process and involve shelling out lakhs of rupees.

Anurag Kashyap circumvented the obstacle by opting to shoot with a DSLR. For That Girl in Yellow Boots, which stars Kalki Koechlin and Naseeruddin Shah, he borrowed money from a friend and went hunting for a 5D Mark II camera. He ended up buying a 7D on which the entire film has been shot.

At the time of the film’s launch in 2010, he boasted on his blog, “We found out about Canon 5D and went looking for it and ended up with the new Canon 7D… We decided to go digital. Our guerrilla teams were ready, we decided we will shoot on the streets while the city celebrates Diwali; shoot we did, in front of the whole metropolis, only they did not know it.’’

For newcomers and directors who have tight budgets, the DSLR makes life easier. They don’t have to spend on lighting, film camera rentals, or film stocks.

On a film camera, to shoot 4 minutes of footage, a moviemaker needs 400 feet of film (1 can) that costs Rs 10,000. So for a film that runs for 2.5 hours, filmmakers end up spending huge sums only onstock. On an average, filmmakers use 400 cans. Compared to this, reusable memory cards used in DSLRs are highly economical.
                                         
“You can own a very good DSLR camera for a price of around Rs 3 lakh, which is much cheaper than even renting film cameras,” says Nidimoru.

School of thoughtFilm schools such as Andheri-based FX School are also using DSLRs to train students who want to become cinematographers. “We started using DSLRs in 2009. The main advantage of the camera is that it gives near film-like quality at a fraction of the price of professional gear,” says C B Arun Kumar, the director of the school. Kumar has used DSLRs such as the Canon 5D Mark II, Canon 7D, Canon 60D, Panasonic GH2 and Nikon D7000 to shoot movies.

“It has democratised moviemaking. So now someone with an idea can make a flick and you don’t need a hell lot of money,” he says.

Veteran cinematographer Ranjan Palit used the 1D Mark IV and 7D Canon cameras, along with the regular 30mm film camera, to shoot 7 Khoon Maaf starring Priyanka Chopra, Neil Nitin Mukesh, John Abraham and Irrfan Khan.  “The DSLRs helped us save at least Rs 10 lakh,” he says.

Lokesh Todi (see pic at the right)—who dabbles in short films,and who is the founder of a Facebook group called ‘DSLR camera revolution for filmmaking’—agrees. He recently shot his short movie Poor Scum, for which he won a ticket to Cannes, on a DSLR camera.

Finishing touchesStill, there are reservations about the quality of movies shot digitally on such cameras as most directors continue to use film and opt for the DSLR only to shoot secondary shots, which they use after seeing the quality of the output.
“The results of scenes shot digitally are good, but we end up tweaking them to ensure they match film quality,” says Palit. “This includes changing the colour contrast, saturation and sharpness.”
SKD’s cinematographer Amol Gole agrees, “The post-production of a digitally-shot film is an important process that can make or break the film.”

Interestingly, cinematographer-director Santosh Sivan believes that final results don’t depend on the camera as much as they do on the skills of the cinematographer.
                                                   
“It has a lot to do with your sensibilities and that reflects in the final product. If you look up YouTube you can see both good and bad stuff shot with the same camera,’’ he says.
Gole also likes to think the benefits of shooting with DSLR are much more than the drawbacks.
Having been a film promo photographer for films such as Mangal Pandey and Maqbool, he knows his DSLR inside out and even owns a kit of 13 lens, which he used for SKD.
“The DSLR let me capture the natural movements and expressions of the children without intruding into their space. It didn’t intimidate them,” he says.