/Tag: monitors

Calibrating monitors for HLG-1.2 High Dynamic Range working

We’ve now done a couple of Sony BVM-X300 (4k/HDR OLED panel) monitors for HDR-TV deliverables to the BBC. The Beeb are behind the Hybrid Log Gamma standard, currently at 1.2 for broadcast. It’s benefits over Dolby’s 10-bit version of their Vision HDR system (also called DolbyPQ) are many and rather splendidly the DVB as well [...]

By |2017-04-13T08:29:42+00:00March 14th, 2017|Categories: Broadcast Engineering, tips|Tags: , , |0 Comments

Shooting and editing HDR via Avid using CLog gamma

We've got BVE2016 coming up and one of the things root6 will be showing is an HDR workflow via Media Composer using Canon monitors. HDR is still a bit of a crap-shoot as far as standardisation is concerned with the BBC/NHK system, Dolby Vision, Sony's SLog3 and Canon's camera-native CLog. The principle of using an [...]

By |2016-10-29T08:54:42+00:00February 12th, 2016|Categories: Broadcast Engineering, Products, tips|Tags: , , , |0 Comments

4k and UHD cabling and signal standards

I’ve had to dig into signal transport for 4k/UHD over the last week or so. Essentially I have a test-signal generator (SRI Visualizer TG100) running at a maximum raster of 4096×2160 at a maximum of 25 progressive frames/sec (and only 4:2:2 colour sampling; Y, Cr, Cb) with a 6G single-link output (so really 4 x [...]

By |2016-10-29T08:54:43+00:00December 14th, 2015|Categories: Broadcast Engineering|Tags: , , , |0 Comments

Canon’s 4k Native IPS television monitors

I had an excellent half day with Canon’s UK imaging display guys to look at their DP-V series 4k native displays. To my shame I had assumed that they would be like the HP Dreamcolor or Eizo ColorEdge series monitors which are advertised as being suitable for film and TV work but as I’ve often [...]

By |2016-10-29T08:54:43+00:00December 4th, 2015|Categories: Broadcast Engineering, Products|Tags: , , , , , |0 Comments

Typical edit suite monitor calibration; some traps for young players

I spent the morning in a very typical Soho edit room with a JVC DT-V24-series LED-backlit LCD as the "front of house" monitor and an LG LED-backlit LCD as the client display. It's quite easy to get the JVC looking right - BBC style 6504k for Rec.709; I've waffled on about this a lot in [...]

By |2016-10-29T08:54:45+00:00August 7th, 2015|Categories: Broadcast Engineering, Support, tips|Tags: , |0 Comments

Tech Breakfast: “Colourimetry, Calibration & Monitoring”

Wed 15th July, 8:30 for 9am, Soho Screening Rooms This month, our Broadcast Engineering guru, Phil Crawley, shares some of the knowledge he’s gained from calibrating monitors over the last 25 years, explores some of the latest tools and demonstrates Boland’s OLED grading monitor. As always the breakfast is free to attend but spaces are limited, [...]

By |2016-10-29T08:54:48+00:00June 16th, 2015|Categories: Broadcast Engineering, Events, News|Tags: , , , , , |2 Comments

The challenges of modern picture quality analysis

Engineers have sought to quantify the quality of the video signal since the birth of television. Since all aspects of the TV picture are represented first by voltages (analogue) and then by numbers-in-a-bit-stream (digital) you have to make measurements to really know anything about the quality of your TV pictures. “When you can measure what [...]

By |2016-10-29T08:55:00+00:00July 16th, 2014|Categories: Broadcast Engineering, Products|Tags: , , , , , , |0 Comments

Colour results from a Sony PVM-2541 TriMaster OLED monitor

Having spent a bit more time with the Klein KT10-A probe I profiled the Sony monitor we hired to practice on. Here you can see the colour gamut for the displayed compared to the Rec709 colour space for television. I used the Klein “K Colorimeter” Windows software to make these measurements. Their ChromaSurf software, which [...]

By |2016-10-29T08:55:04+00:00May 6th, 2014|Categories: Broadcast Engineering|Tags: , |0 Comments

Klein KT10-A photometer for TV colour cablibration

We had a splendid day at the Root6 workshop getting to grips with our new Klein KT10-A photometer and testing it out on a couple of Sony broadcast monitors; an LMD-series LCD and a PVM-series OLED. For many years we’ve been relying on the PM5639 colour probe – originally made by Phillips and now badged [...]

By |2016-10-29T08:55:10+00:00May 2nd, 2014|Categories: Broadcast Engineering|Tags: , , |0 Comments

EDID isn't the only thing that graphics cards look at

Avid Media Composer insists on re-starting when it sees a change of monitor. I always assumed that it was done via Windows detecting a new EDID profile but it turns out that if you unplug and re-plug the same monitor (i.e. EXACTLY the same EDID data - even s/n) then the same happens and so [...]

By |2016-10-29T08:55:16+00:00January 29th, 2014|Categories: Broadcast Engineering, tips|Tags: , , |0 Comments

Colour perception – a couple of notes

  Colour perception is a complicated business; most people have tristimulus vision - that is we perceive colour (broadly speaking) in reds, greens and blues. Your brain does the clever stuff of filling in the intermediate colours - if you're seeing a colour between red and green (yellow) the mix of stimulation of the red [...]

By |2016-10-29T08:55:16+00:00January 29th, 2014|Categories: Broadcast Engineering, tips|Tags: , , |0 Comments