
When you work with RED Digital Cinema’s cameras, part of the post production workflow is a “processing” step, not unlike the lab and transfer phase of film post. The RED One, EPIC and SCARLET cameras record raw images using Bayer-pattern light filtering to the sensor. The resulting sensor data is compressed with the proprietary REDCODE codec and stored to CF cards or hard drives. In post, these files have to be decompressed and converted into RGB picture information, much the same as if you had shot camera raw still photography with a Nikon or Canon DSLR.
RED has been pushing the concept of working natively with the .r3d media (skipping any interim conversion steps) and has made an SDK (software development kit) available to NLE manufacturers. This permits REDCODE raw images to be converted and adjusted right inside the editing interface. Although each vendor’s implementation varies, the raw module enables control over the metadata for color temperature, tint, color space, gamma space, ISO and other settings. You also have access to the various quality increments available to “de-Bayer” the image (data-to-RGB interpolation). The downside to working natively, is that even with a fast machine, performance can be sluggish. This is magnified when dealing with a large quantity of footage, such as a feature film or other long-form projects. The native clips in your editing project are encumbered by the overhead of 4K compressed camera files.
For these and other reasons, I still advocate an offline-online procedure, rather than native editing, when working on complex RED projects. You could convert to a high-quality format like ProRes 4444 or 10-bit uncompressed at the beginning and never touch the RED files again, but the following workflow is one designed to give you the best of all worlds – easy editing, plus grading to get the best out of the raw files. There are many possible RED workflows, but I’ve used a variation of these steps quite successfully on a recent indie feature film – cut on Final Cut Pro 7 and graded in Apple Color. My intent here is to describe an easy workflow for projects mastering at 2K and HD sizes, which are destined for film festivals, TV and Blu-ray.

Conversion for offline editing
When you receive media from the studio or location, start by backing up and verifying all files. Make sure your camera-original media is safe. Then move on to RED’s REDCINE-X PRO. There is no need yet to change color metadata. Simply accept what was shot and set up a batch to convert the .r3d files into editing media, such as Avid DNxHD36 or Apple ProRes LT or ProRes Proxy. 1920×1080 or 1280×720 are the preferred sizes for lightweight editing media.
With a RED ROCKET accelerator card installed, conversion time will be about real-time. Without it, adjust the de-Bayer resolution settings to 1/2, 1/4 or 1/8 for faster rendering. The quality of these dailies only needs to be sufficient for making effective editing decisions. The advantage to using REDCINE-X PRO and not the internal conversion tools of the NLE (like FCP 7’s Log and Transfer) is faster conversion, which can be done on any machine and isn’t dependent on the specific requirements of a given editing application.
Creative (offline) editing
Import the media into your NLE. In the case of Final Cut Pro 7, simply drag the converted QuickTime files into a bin. Import any double-system audio and merge the clips. Edit until the picture cut is locked. Break the final sequence into reels of approximately ten minutes in length each. Export audio as OMF files for your sound designer/mixer. Duplicate the reels as video-only timelines, remove any effects, extend the length of shots with dissolves and restore all shots with speed changes to full length. Export an XML file for each of these reels.

REDCINE-X PRO primary grading pass
This is a two-step color grading process: Step 1 in REDCINE-X PRO and Step 2 in Apple Color. The advantage of REDCINE-X PRO is direct access to the raw files without the abstraction layer of an SDK. By adjusting the source settings panel within Color, Resolve, Media Composer, Premiere Pro and others, you are adjusting the raw controls; but, any further color adjustments (like curves and lift/gamma/gain “color wheels”) are made downstream of the internally-converted RGB image. This is functionally no different than rendering a high-quality, raw-adjusted RGB file from one application and then doing further corrections to it in another. That’s the philosophy here.
Import the XML file for each reel as a timeline into REDCINE-X PRO. This conforms the .r3d files into an edited sequence corresponding to your cut in FCP. Adjust the raw settings for all shots in the timeline. First, set color space to RedColor2. (You may temporarily set gamma space to RedGamma2 and increase saturation to better see the affect of your adjustments.) Remember, this is a primary grading pass, so match all shots and get the most consistent look to the entire timeline.
You can definitely do very extensive color correction in REDCINE-X PRO and never need another grading tool. That’s not the process here, though, so a neutral, plain look tends to be better for the next stage. The point is to create an evenly matched timeline that is within boundaries for more subjective and aggressive grading once you move to Color. When you are ready to export, return saturation to normal, set color/gamma space to RedColor2/RedLogFilm and the de-Bayer quality to full resolution. Export (render) the timeline using Apple ProRes 4444 at either a 2K or 1920×1080 size. Make sure the export preset is configured to create unique file names and an accompanying FCP XML. Repeat this process for each reel.

Sending to Color and FCP completion
Import the REDCINE-X PRO-generated XML for each reel into Final Cut. Reconnect media if needed. Remove any filters that REDCINE-X PRO may have inadvertently added. Double-check the sequence against your rough cut to verify accuracy and then send the new timeline to Color. Each reel becomes a separate Color project file. Grade for your desired look and render the final result as ProRes HQ or ProRes 4444. Lastly, send the project back to Final Cut Pro to complete the roundtrip.
Once the graded timelines are back in FCP, rebuild any visual effects, speed effects and transitions, including dissolves. Combine the video-only sequences with the mixed audio and add any finishing touches necessary to complete your master file and deliverables.
Written for DV Magazine (NewBay Media LLC)
©2012 Oliver Peters

I recently spoke with Kirk Baxter and Angus Wall, who as a team have cut Fincher’s last three films, earning them a best editing Oscar for The Social Network as well as a nomination
The key to efficient post on a RED project is the workflow. Assistant editor Tyler Nelson explained the process to me. “We used essentially the same procedures as for The Social Network. Of course, we learned things on that, which we refined for this film. Since they used both the RED M-X and the EPIC cameras, there were two different frame sizes to deal with – 4352 x 2176 for the RED One and 5120 x 2560 for the EPIC. Plus each of these cameras uses a different color science to process the data from the sensor. The file handling was done through Datalab, a company that Angus owns. A custom piece of software called Wrangler automates the handling of the RED files. It takes care of copying, verifying and archiving the .r3d files to LTO and transcoding the media for the editors, as well as for review on the secured PIX system. The larger RED files were scaled down to 1920 x 1080 ProRes LT with a center-cut extraction for the editors, as well as 720p H.264 for PIX. The ‘look’ was established on set, so none of the RED color metadata was changed during this process.”
The Girl with the Dragon Tattoo leans heavily on a score by
I definitely enjoyed the Oscar-winning treatment these two editors applied to intercutting dialogue scenes in The Social Network, but Baxter was quick to interject, “I’d have to say Dragon Tattoo was more complicated than The Social Network. It was a more complex narrative, so there were more opportunities to play with scene order. In the first act you are following the two main characters on separate paths. We played with how their scenes were intercut so that their stories were as interconnected as possible, giving promise to the audience of their inevitable union.”
Ever since the launch of
The 4K discussion starts at sensor size. Camera manufacturers have adopted larger sensors to emulate the look of film for characteristics such as resolution, optics and dynamic range. Although different sensors may be of a similar physical dimension, they don’t all use the same number of pixels. A RED EPIC and a Canon 7D use similarly sized sensors, but the resulting pixels are quite different. Three measurements come into play: the actual dimensions, the maximum area of light-receiving pixels (photosites) and the actual output size of recorded frames. One manufacturer might use fewer, but larger photosites, while another might use more pixels of a smaller size that are more densely packed. There is a very loose correlation between actual pixel size, resolution and sensitivity. Larger pixels yield more stops and smaller pixels give you more resolution, but that’s not an absolute. RED has shown with EPIC that it is possible to have both.
The biggest visual attraction to large-sensor cameras appears to be the optical characteristics they offer – namely a shallower depth of field (DoF). Depth of field is a function of aperture and focal length. Larger sensors don’t inherently create shallow depth of field and out-of-focus backgrounds. Because larger sensors require a different selection of lenses for equivalent focal lengths compared with standard 2/3-inch video cameras, a shallower depth of field is easier to achieve and thus makes these cameras the preferred creative tool. Even if you work with a camera today that doesn’t provide a 4K output, you are still gaining the benefits of this engineering. If your target format is HD, you will get similar results – as it relates to these optical characteristics – regardless of whether you use a RED, an ARRI ALEXA or an HDSLR.
Quite a few large-sensor cameras have entered the market in the past few years. Typically these use a so-called Super 35MM-sized sensor. This means it’s of a dimension comparable to a frame of 3-perf 35MM motion picture film. Some examples are the
This year was the first time that the industry at large has started to take 4K seriously, with new 4K cameras and post solutions. Sony introduced the F65, which incorporates a 20-megapixel 8K sensor. Like other CMOS sensors, the F65 uses a Bayer light filtering pattern, but unlike the other cameras, Sony has deployed more green photosites – one for each pixel in the 4K image. Today, this 8K sensor can yield 4K, 2K and HD images. The F65 will be Sony’s successor to the F35 and become a sought-after tool for TV series and feature film work, challenging RED and ARRI.
The Canon EOS C300 and EOS C300 PL use an 8.3MP CMOS Super 35MM-sized sensor (3840 x 2160 pixels). For now, these only record at 1920 x 1080 (or 1280 x 720 overcranked) using the Canon XF codec. So, while the sensor is a 4K sensor, the resulting images are standard HD. The difference between this and the way Canon’s HDSLRs record is a more advanced downsampling technology, which delivers the full pixel information from the sensor to the recorded frame without line-skipping and excessive aliasing.
RED launched SCARLET-X to a fan base that has been chomping at the bit for years waiting for some version of this product. It’s far from the original concept of SCARLET as a high-end “soccer mom” camera (fixed lens, 2/3” sensor, 3K resolution with a $3,000 price tag). In fact, SCARLET-X is, for all intents and purposes, an “EPIC Lite”. It has a higher price than the original SCARLET concept, but also vastly superior specs and capabilities. Unlike the Canon release, it delivers 4K recorded motion images (plus 5K stills) and features some of the developing EPIC features, like HDRx (high dynamic range imagery).
Software is easy, but what about hardware? Both AJA and Blackmagic Design have announced 4K solutions using the 

There are many ways to handle the post production of native RED media and I’ve covered a number of them in
The dailies and editorial flow
Finishing and grading
On to Plan B. Since Redcine-X correctly links to the media and includes not only controls for the raw settings, but also a healthy toolset for primary color correction, then why not use it for part of the grading process? Follow that up with a pass through Color to establish the stylistic “look”. This ended up working extremely well for us. Here are the basic steps I followed.
Step 3. Each timeline was exported from Redcine-X as a single ProResHQ file with these new settings baked in. We had moved the Red Rocket card into the primary workstation, so these 1920 x 1080 clips were rendered with full resolution debayering. As with the dailies, rendering time was largely real-time or somewhat slower. In this case, approximately 10-20 minutes per reel.
Step 5. I sent my newly “notched” timeline to Color and graded as I normally would. By using the Redcine-X step as a “pre-grade”, I had done the same thing to the image as I would have done using the RED tab within Color, thus keeping with the plan to grade from the native camera raw files. I do believe the approach I took was faster and better than trying to do it all inside Color, because of the inefficiency of bouncing in and out of the RED tab in Color for each clip. Not to mention that Color really bogs down when working with 4K files, even with a Red Rocket card in place.
Timing is often everything when it comes to indie filmmaking. That’s certainly the case with
Higher Ground editor
Newmark explained, “I was concerned about whether I’d need to take the existing dailies and convert them again to DNxHD media for Colleen. I talked it over with a friend at PostWorks in New York and it seemed like using AMA would be viable. We proceeded down the road of using the ProRes files in the Avid and Colleen was able to cut the film entirely using linked AMA files. We never transcoded them into DNxHD and it worked well. Of course, at the beginning I still had the Plan B of converting everything again if the AMA idea didn’t work; but, I wanted to avoid this as it would have cost us extra time. Even though we own a Red Rocket card for fast transcoding, the crew was using two cameras the entire time and often recording very long performance takes. So, in two-and-a-half weeks, they’d already accumulated quite a large amount of footage.”
In the end, it worked better than expected for what was at that time a new software release. Higher Ground is likely the first feature film edited using strictly AMA-linked ProRes files. Thanks in part to the weak economy, the film company was able to secure off-hours packages for DI finishing in Los Angeles and sound editing and mixing at Sound One in New York. Newmark continued, “I was able to send the colorist [Adam Hawkey] an EDL and the trimmed .r3d RED camera files, as well as the looks that I’d established with the DoP. These were imported into a Nucoda system, which read the files perfectly, including the looks presets. Adam told us this worked seamlessly and gave him a great starting point to work from in grading the film. Michael [McDonough] supervised the grading over a five-day stretch.”
I asked Colleen Sharp about editing challenges on the film. She replied, “The biggest challenge I’d anticipated turned out not to be an issue at all. That was working with a first-time director, who was also the lead actor. Vera was great to work with. She was new to the entire editing process and very intrigued by the possibilities. She was hands-on during the edit and very helpful. I normally work on a film during the shooting and complete an editor’s cut before I start working with the director. In this case, I wasn’t completely done with my cut before the production wrapped, so the last portion of this first cut was worked out with Vera’s involvement. They finished shooting just after the 4th of July weekend, but I didn’t have my first cut together until the third week in July. It was just under three hours long! We continued working at it until mid-October and ended up at the final length of 107 minutes. Naturally, with that much trimming, you have to lose some scenes that are painful to cut, but that’s all part of the process.”
In the end, the post production workflow proved to be very viable. Newmark said, “When we started this, a lot of the advice we received ended with ‘good luck – no one has ever done this before.’ I was impressed with the stability of the Avid system, compared with the Final Cut system that was being used at the same time on the other film going through BCDF.” In the future, BCDF intends to handle more films on the Avid system. Newmark continued, “We always want to let the decision be made by the cinematographers and editors whenever possible. We own RED camera packages, but we’ve also shot films with ARRI ALEXA and 35mm film depending on what’s the right approach for that film. I really think Avid is the best tool for feature film editing and I’m glad this experience worked so well. Of course, now when we have a RED show that we know will be cut on Media Composer, we transcode the RED media to DNxHD. Nevertheless, going ProRes on Higher Ground proved to be far more seamless than I would have expected.”