DCI 4K for VIDEO ASSIST

The place for questions about shooting with Blackmagic Cameras.
  • Author
  • Message
Offline

Thierry Schmitt

  • Posts: 7
  • Joined: Sat Dec 17, 2016 11:04 am

DCI 4K for VIDEO ASSIST

PostThu Dec 22, 2016 12:36 pm

Just received VIDEO ASSIST 4K and I can't believe ther's no DCI 4K 24P support !! For a '4K' video recorder that can't record full 4K resolution, it's a must !
Is there a firmware update coming soon to support real 4K resolution ?
thank you
Best regards
Offline

Denny Smith

  • Posts: 13131
  • Joined: Thu Aug 01, 2013 4:19 pm
  • Location: USA, Northern Calif.

Re: DCI 4K for VIDEO ASSIST

PostThu Dec 22, 2016 7:19 pm

Sorry, but the Video Assist 4K was marketed as a UHD/4K recorder, and not a DCI 4K, the recording/display resolutions are listed in the Specifications page both on B&H and in BM Products page.

A firmware update is not going to make a UHD recorder or camera suddenly record full DCI 4K, if the hardware is not able to support it. The issue of calling UHD a 4K signal is somewhat missleading, but follows calling 720p60 HD, you need to double check actual product specifications, and not just go by the title.

If you need full DCI4K, you are going to need a different recorder, like the Video Devices PixE 5/7, or a Convergents Design Recorder.
DS
Denny Smith
SHA Productions
Offline
User avatar

rick.lang

  • Posts: 18619
  • Joined: Wed Aug 22, 2012 5:41 pm
  • Location: Victoria BC Canada

DCI 4K for VIDEO ASSIST

PostThu Dec 22, 2016 9:44 pm

Thierry, understand the frustration though. Can you at least return it to your retailer?

4K televisions are a familiar marketing term, but they're all UHD 3840x2160 as far as I know. Is that avoidance of the more correct term UHD and plastering the 4K term everywhere that can cause someone to be confident they know what they're getting. Unfortunate, but BMD was never the first to coin the 4K terminology to describe UHD.

At least 2K is always DCI and except for the USA, HD means 1920x1080 (what the USA and others have started to call Full HD to distinguish it from the US carriers' stratagem to call 720 lines HD several years ago since the broadcasters and cable companies weren't prepared to upgrade to 1080 lines.


Sent from my iPad using Tapatalk
Rick Lang
Offline

Denny Smith

  • Posts: 13131
  • Joined: Thu Aug 01, 2013 4:19 pm
  • Location: USA, Northern Calif.

Re: DCI 4K for VIDEO ASSIST

PostThu Dec 22, 2016 11:01 pm

Correct Rick, US Broadcast stsndsrd for HD is either 1080i59.94 or 720p60. Full HD, or 1080p59.94 has not arrived yet, let alone UHD Boradcasting (except on cable systems or live streaming services like NetFlix, again, over cable).

Since the terminology being used is so loose, 4K can mean anything from UHD to DCI 4K, I always check the specification sheet on video equipment to see what the actual resolutions are. BM should have used the tern UHD/4K in describing the new Video Assist, but again, they call their Studio cameras 4K, and they are actually only UHD also.
Cheers
Denny Smith
SHA Productions

Return to Cinematography

Who is online

Users browsing this forum: No registered users and 46 guests