Blackmagic Design Introduces a $895 4K Disk Recorder / Monitor

Blackmagic Design just introduced their first 4K disk recorder / monitor, challenging the Atomos Shogun recorders with a high resolution 1080p display and SDI / HDMI connectivity at an impressive pricepoint of just $895.


Blackmagic Design Video Assist 4K

After Atomos surprised us with yet another version of their high end HDR disk recorder, the Atomos Shogun Inferno, Blackmagic seems to be right at their heels with the new Blackmagic Video Assist 4K. What is interesting about this 4K SDI / HDMI recorder is mainly its price of $895. In comparison, the original Atomos Shogun is still $1495.

Video-Assist-4K_LeftSideAt this point, I should also mention that the while the Blackmagic Video Assist 4K shares the SDI and HDMI connectivity of the Shogun, the Atomos has gone through a year’s worth of numerous firmware updates that have made it a very feature-rich tool. Just like the original HD Video Assist, I presume the Video Assist 4K is still very basic in terms of its features.

If you’re searching for basic functionality though, the Blackmagic Video Assist 4K looks like a pretty interesting deal. It also offers a few nice features: it records directly to affordable and compact UHS-II SDHC Media and can even record to both simultaneously for a quick backup solution. Also when one card is full it switches over to the next card for continuous recording.

There are also 2 mini XLR connectors for audio, including 48V phantom power for microphones and last but not least LANC control and HDMI and SDI rec-trigger: a very important feature when you’re working in the field and want to be quick as a single operator shooter.


The 6G SDI input will enable recording from some of Blackmagic’s new cameras for a higher data rate. In comparison, most other camera manufacturers still use 3G-SDI that cause problems when working with 4K footage, degrading external recordings like on the FS7.

Blackmagic Video Assist 4K Key Features

  • 7 inch LCD touch screen with 1920 x 1200 high resolution monitor.
  • 10-bit 4:2:2 HD ProRes or DNxHD recording.
  • Dual high speed UHS-II SDHC card slots.
  • Dual recorders allow non-stop recording.
  • 2 mini XLR connectors with 48V phantom power.
  • -128dBV electrical noise floor.
  • LANC connection for remote control.
  • Auto start/stop recording using HDMI or SDI triggers.
  • Includes slots for 2 hot pluggable batteries as well as 12V DC power input.
  • Included kickstand.
  • Includes 6G-SDI input.

The Blackmagic Video Assist 4K is available now and retails for $895.

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Sebastian WöberEtienne Lacroix Carlos Martinez Recent comment authors
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Tim Naylor

Now if you could get BM size with Atomos brightness that would be something. Or get rig of the monitor altogether.

Dan Buck Joyce

Frame rates at 1080p please.

Sascha Reinhardt

What your camera can output over a standard video output. :D

Sergio Monserrate

are they ever going to add waveforms, rgb parade, veterscopes, etc

Paul Webb

Hope this one handled highlights better than the 5inch


The highlight issue has been bothering me on the five inch. Could this be fixed with firmware?

Kaster Troy

great article and interview

Evan Shaw

I could be wrong but just like the Video Assist it does not work with cameras like the Canon 5D mark iii that have clean HDMI out but no audio and need an input and lag correction. Atomos has this ability. BM does not it appears once again. I wrote to them about this and they said it would be corrected. Hmmm.

Evan Shaw

I may have to take that reply back, there is a work around it appears. My bad.

 Bryan Conover


 Carlos Martinez
Carlos Martinez

Well, an important difference with the Atomos Shogun Assasin is that you record on an SSD reorder, not an SDHC card.

Etienne Lacroix

Just wondering when it will be in the shops.The status at for the HD video assist is: ” Not in stock – Order now and we’ll deliver when available – Normally ships in 4-6 weeks – subject to variation”…???….:(