DPReview TV: Waveforms are better than histograms (and stills cameras should use them)

“By now, most serious photographers are familiar with histograms, a tool we’ve used for years to judge exposure. But what about waveforms? In this episode, Chris and Jordan explain why this tool from the video world may be the best way to judge exposure for photos – and why still cameras should use them too.”

Commentary

This is not a bad idea as other tools formerly the exclusive province of video production have found a place in photography, such as exposure zebras, which is a much better alternative to the dreaded blinkies.

timeinpixels_false_color_plugin_red_01_1920px
False colour as seen on RED cameras, courtesy of Tom Huczek at timeinpixels, maker of the excellent False Color Plugin for NLEs and colour grading software.

Even better may be false colour, well illustrated in several different styles as provided by a range of cameras at Tom Huczek’s timeinpixels’ web page and video for its excellent and highly recommended False Color Plugin for a range of non-linear editing and colour grading applications including DaVinci Resolve and Final Cut Pro X.

As a documentary and portrait person, skintone-oriented false colour exposure functionality would be more useful than histograms and waveforms.

Links

Help support ‘Untitled’

Clicking on the links and purchasing through them for our affiliate accounts at B&H Photo Video, SmallRig or Think Tank Photo helps us continue our work for ‘Untitled’.

time in pixels: False Color Plugin 3

https://timeinpixels.com/false-color-plugin/

“One of the most useful tools for exposure monitoring and shot matching. Bring your camera tool to the post-processing environment!

Available for various platforms including OpenFX hosts: DaVinci Resolve, Scratch, Nuke, Sony Vegas Pro as well as Adobe CC: Premiere Pro and After Effects…..”

Link

Blackmagic Design Releases DaVinci Resolve 14, Most Massive Update Yet, Adds Fairlight Audio Page, Radically Drops Studio Price

The words “gamechanging” and “revolutionary” are well overused in the realm of digital media production and writers are always warned to avoid them. But what other words best describe Blackmagic Design’s DaVinci Resolve 14 in its free and paid-for Studio versions?

The Fairlight audio page of Blackmagic Design’s DaVinci Resolve 14 non-linear editing, colour grading and audio production software suite.

Signs were Blackmagic was up to something radical when it bought pioneering computer musical and video instruments maker Fairlight and the fruits of that move are now here in Resolve 14’s Fairlight audio page.

The first beta of DaVinci Resolve 14 and DaVinci Resolve Studio 14 is now available to download in your choice of three computer platforms, macOS, Windows and two flavours of Linux, Red Hat and CentOS.

The latter option is particularly exciting, as Blackmagic Design’s press release says, “Customers running Red Hat or CentOS Linux can even build their own workstations using low cost motherboards, extremely fast processors, massive amounts of RAM and up to 8 GPUs for incredible real time performance.”

Looks like I will have a good use for the Mac Pro tower sitting next to my workstation when it finally gives up the ghost. Strip it, build a Linux workstation into the case and run DaVinci Resolve 14 in it along with other open source production software.

Blackmagic Design Press DaVinci Resolve 14 Images

From the Blackmagic Design press release for DaVinci Resolve 14 public beta:

The free version of DaVinci Resolve is also available with the same powerful new editing and audio post production features. The $299 DaVinci Resolve 14 Studio version adds the new collaborative multi user tools, over 20 new Resolve FX including the advanced face enhancement tools, 4K and 120fps project support, stereoscopic 3D, optical quality blur and mist effects, film grain, de-noise tools and much more. Best of all, DaVinci Resolve 14 Studio does not require a connection to the internet or a cloud subscription to work.

Free or Studio version?

That is your decision but it is made easier by looking at the features for each of the current five different versions of DaVinci Resolve 14 in the Compare page. If you have a dongle for a previous version of DaVinci Resolve Studio than you can download the version 14 beta. If you don’t then choose the appropriate free version of DaVinci Resolve.

For the most part each version has feature parity with the exception of the more sophisticated creative and production tools and effects. If you are a proud new owner of a Panasonic Lumix DC-GH5 camera and will be working in 10-bit 4:2:2 high bitrate modes, or DCI 4K rather than UHD 4K, shoot video in 6K Photo mode using H.265 HEVC (though Divergent Media’s EditReady transcoder can help there), will be recording to HDR or value Camera LUTs in colour grading nodes, then you will need to consider purchasing a Studio license.

Screenshot from the Compare page, still missing from the linked pages line-up at Blackmagic Design’s DaVinci Resolve 14 webpages. I am informed that HEVC decoding and High 10 Profile H.264 decoding are required to work with some types of footage from Panasonic’s Lumix DC-GH5 camera.

Given that DaVinci Resolve Studio 14’s price has dropped to less than a third of version 12.5’s, comparing it to the combined price of another brand non-linear editing software plus third party colour grading plug-ins plus an audio editing suite, whether paid-for on a monthly subscription or once-off basis, DaVinci Resolve Studio 14’s once-only USD299.00 is starting to look like a bargain.

Don’t forget that we are only seeing the first beta version. Blackmagic Design may make radical changes to each version’s feature set by the time the release versions appear some months hence.

The one thing that DaVinci Resolve 14 in all its versions is currently missing is motion graphics and VFX capabilities, but your needs may be taken care of with Blackmagic Design’s Fusion 8 or Fusion 8 Studio software.

I have not had the time to try DaVinci Resolve 14 out yet so the best thing I can do is link below to an overview of some of its most exciting new features and improvements, written by colourist Joey D’Anna for colour grading website and online training providers Mixing Light.

Consider Time in Pixels’s False Color Plug-in for use in DaVinci Resolve

Cinematographer/photographer Tomasz Huczek makes what is, to my knowledge, the only false colour plug-in for any editing or colour grading platform. False Color Plugin by Time in Pixels is available in two versions, the free evaluation version without time limit, and the full professional version.

Time in Pixels' False Color Plug-in includes industry standard presets and presets for skin tones, highlights and shadows.
Time in Pixels’ False Color Plug-in includes industry standard presets and presets for skin tones, highlights and shadows.

Both come in macOS or Windows versions, and both work in Adobe’s After Effects CC and Premiere Pro as well as OpenFX plug-in hosts such as DaVinci Resolve, Nuke, Sony Vegas Pro and more.

Time in Pixels' False Color Plugin appears in the Scopes section of DaVinci Resolve's Color page, at upper right.
Time in Pixels’ False Color Plugin appears in the Scopes section of DaVinci Resolve’s Color page, at upper right.

If you are familiar with false colour in monitors/recorders such as those made by Atomos, then using False Color Plugin within DaVinci Resolve, After Effects or Premiere Pro should be a doddle, as it were. A Final Cut Pro X version of False Colour Plugin is on its way, according to Tomasz Huczek who informed me that “I am planning to start working on the FCPX version once v3.0 of the plugin is out”.

Links:

How to Make the X-T2 a Credible Filmmaking Camera, A Letter to Fujifilm from Paul Leeming

Director/cinematographer Paul Leeming of Leeming LUT One and Visceral Psyche Films recently put Fujifilm’s X-T2 to the test alongside a range of other hybrid stills/video cameras, and believes that the X-T2 has the potential to be one of the best small, affordable Super 35 video production cameras on the market. 

Mr Leeming comes from a classical feature film background and for some years owned and hired out several RED Super 35 digital movie cameras. In recent years he has adopted the Panasonic Lumix DMC-GH4 Super 16 camera as his mainstay, due to its advanced, near-complete moviemaking feature set.

The GH4’s successor, the GH5, due to appear sometime early 2017, looks set to acquire even more advanced moviemaking features. Meanwhile, there is a clear gap in the market for production-ready Super 35 cameras with Samsung discontinuing its very promising Samsung NX1 4K hybrid in 2015.

_2230589_hdr_hollywood_800px
Fujifilm X-T2 with Røde VideoMic Pro, Sennheiser noise-cancelling earphones and Peak Design Cuff and Clutch straps.

Unlike Samsung, Fujifilm has a long history of producing high-end video camera lenses, excellent stills lenses of all formats, and top quality integrated camera and lens systems in a number of formats under its own brand name and in collaboration with Hasselblad.

Add all that to Fujifilm’s achievements in making stills and movie film and the Japanese company has what it takes to produce one of the most sought-after Super 35 movie production cameras, if it wishes.

Fujifilm’s best first step would be to take on board Mr Leeming’s firmware and other suggestions, below, consult on a range of suitable lenses and commence work on an even more video-capable X-T2 successor, the X-T3 or X-T2S.


Fujifilm X-T2 Suggested Improvements, by Paul Leeming

Having tested two X-T2 cameras now, there are several fairly glaring omissions which would need to be added and/or fixed in order to present a credible filmmaking camera to the community.

1. White Balance in Video Mode

There is currently no way to set a custom white balance while in video mode, whereby you use a spectrally neutral white or grey reference card to balance out the RGB channels, then save that balance to one of the C1, C2 or C3 colour slots. Given that maximum dynamic range and colour tonality in 8bit 4:2:0 depends on extracting the fullest range out of each RGB channel, it is imperative that a Custom White Balance be easily achievable in any video mode, ideally able to be mapped to a Custom Function button so that a shooter can hit the function, auto white balance in video mode, and have the subsequent slot kept in operation until otherwise updated or changed.

2. Zebras

To accurately judge where overexposure occurs, there is a need for zebras being active in all video modes. These zebras should ideally be adjustable, such that the user can set, for example, 70% IRE, and have it accurately reflected on screen. To judge overexposure, 100% IRE or 100% zebras should show where the clipping point is occuring in real time, so that the user can adjust iris, ISO or shutter as required to reduce exposure to the point where it is no longer clipping. For log-based shooting using F-log, the zebras should still accurately indicate where the clipping point is, even if it occurs before 100% IRE (for example, 79% IRE).

3. DCI 4K

The camera is very close to achieving this already. DCI 4K is 4096 x 2160 x 24.00fps. I’ve tested two different cameras and one had 24.00fps and 23.98fps listed separately; the other did not (different firmware I guess). Both of these however only allowed 3840 x 2160, not 4096 x 2160 as defined by DCI 4K. Having used the DCI 4K feature of the Panasonic GH4 camera previously to match cinema standards fully, the addition of 256 pixels of width plus the 24.00fps framerate would set the X-T2 in a rarified class of filmmaker cameras which actually support the full DCI 4K spec, as only a couple currently support that combination. Supporting the DCI 4K spec with the X-T2’s Super 35 size sensor would actually push it over the GH4 in terms of sensor size and capability, since the GH4 is a M43 sensor only.

4. Histogram

The histogram does not show up in 4K shooting modes that I can see, but it should, along with the zebras mentioned above. Between the two, the filmmaker can easily judge exposure and adjust to maximise dynamic range without clipping anything in the shot. It needs to be a selectable option in all video modes.

5. Unlimited Recording Time

There are two things here that need addressing – first is the 10 minute limit without the added battery grip, and the second is the 30 minute limit even with the grip attached.

First off, there are basically no other cameras that limit their recording to under 30 minutes without needing an additional expense of a battery grip, which also adds bulk and weight to the camera. If this is really a hardware problem with not having enough power, then offer an option such as external power through a dummy battery or USB power input.

Second is the 30-minute artificial limitation to avoid taxing the camera as a video camera. This is purely arbitrary and given that most filmmakers often use their cameras for documentaries and interviews, etcetera, should be something that can be offered as an option, or at least done by region so that in the US, for example, you can sell the unlimited recording model (such as the Panasonic GH4 again, whose US and GH4R models offer unlimited recording time, limited only by the SD card or power running out).

6. F-Log Preview

Currently, I cannot view F-Log colourimetry until hitting record, which causes all sorts of issues with external monitoring using LUTs, etcetera. F-Log needs to show up in the colour space it natively uses, at all times, not only when hitting record.

7. F-Log Internal Recording

I am very aware of the potential issues for 8 bit 4:2:0 log recording to cause unwanted artifacts (see the GH4 for what NOT to do here). However, it should be something the user can choose to enable or not, for testing purposes and for those who don’t have an external recorder handy.

8. F-Log 10bit HDMI Output

The GH4 offers 10bit 4:2:2 HDMI output in full DCI 4K, and has done since it was released over two years ago. This should be the minimum standard going into 2017, and would definitely raise the X-T2’s filmmaker credibility.

There are probably more things I could suggest with further testing of the camera, but getting most of the above things fixed would go a long way to putting the X-T2 close to the top of the mirrorless APS-C camera pile for early 2017.

You have probably noticed I refer to the Panasonic GH4 a lot. That’s because it is the most well-designed consumer-facing mirrorless camera I’ve used and tested in depth (and the GH5 looks to best it in some significant ways in early 2017). It has ergonomic controls, a good monitor and lots of other features which make it easy to use on film sets. It really should be the minimum to aspire to in terms of all of the above, for the X-T2 and future cameras going forward.

Closing with my ultimate wishlist for a mirrorless camera in early 2017, in case you want to blow the industry wide open…

  • Full Frame sensor with no video mode crop.
  • DCI 4K (4096 x 2160 x 24.00fps) recording internally to 10bit 4:2:2 in whatever format/media works best.
  • Rolling shutter of less than 14ms.
  • 13-14 stops of dynamic range minimum.
  • 60fps maximum framerate using DCI 4K at full 10bit 4:2:2 internally.
  • Zebras, histogram, false colour mode to judge exposure.
  • No internal recording time limitation.
  • External power using either a dummy battery with cable or USB-C power delivery spectrally.
  • Fully rotating monitor like that on the Panasonic GH4.

Feel free to contact me with feedback or questions, as I would dearly like to see this camera become a real alternative to the GH4 and soon GH5, given its larger sensor and potential colour rendition.

Hope this helps!

Regards,

Paul Leeming
Director & Cinematographer
Visceral Psyche Films
www.visceralpsyche.com


Image Credits

Header image concept and hack by Carmel D. Morris.

Help support ‘Untitled’

Clicking on these affiliate links helps us continue our work for ‘Untitled: Stories of Creativity, Innovation, Success’.

  • Fujifilm X-T2 Mirrorless Digital Camera (Body Only)B&H
  • Fujifilm X-T2 Mirrorless Digital Camera Body with Battery Grip KitB&H
  • Fujifilm X-T2 Mirrorless Digital Camera with 18-55mm LensB&H
  • Fujifilm X-T2 Mirrorless Digital Camera with 18-55mm Lens and Battery Grip KitB&H
  • Fujifilm X-T2 Mirrorless Digital Camera with 35mm Lens and Battery Grip KitB&H
  • Fujifilm X-T2 Mirrorless Digital Camera with 18-55mm and 35mm Lenses and Battery Grip KitB&H
  • Vello Long Rubber Eyepiece Upgrade for Fujifilm X-T1 & X-T2B&H
  • Vello ESS-EFXLTIIG Large Eyecup for Glasses for Fujifilm X-T1 & X-T2 CameraB&H
  • Really Right Stuff BXT2 Camera Base Plate for Fujifilm X-T2  – B&H
  • Really Right Stuff BXT2-L Set L-Plate for Fujifilm X-T2  – B&H
  • Really Right Stuff BVPBXT2-L L-Plate for Fujifilm X-T2 with VPB-XT2 Battery GripB&H
  • 3 Legged Thing QR11-LC Universal L-BracketB&H