30 Jul 2020

Completing the Sony A7S MK III

Adapting the Sony A7S MK III for video and film making use requires thought and professional accessories. Here are our picks…


Runtime is always a consideration with large sensor cameras, and the native Sony NP-FZ100 battery’s 17Wh capacity is limiting. An extremely popular device, CoreSWX’s 49Wh Powerbase Edge battery attaches to the bottom of the camera and provides around 8 hours of continuous shooting.

Core SWX PowerBase Edge

Its LCD screen gives an accurate read-out of remaining runtime and a hibernation mode helps retain charge between shoots so that your camera is always ready to roll. Other smart features include additional outputs (USB and powertaps) to power accessories such as external recorders, transmitters, encoders and lights.

Rigging the Camera

The latest generation of cameras with 4:2:2 10-bit recording and fast frame rate 4K shooting are suitable for TV and film production. Professional cages deliver four key functions:

  • Protective structure to safeguard the camera from everyday knocks
  • Quick release system for instant mounting on tripods, jibs
  • Top handle for under-slung shots and easy carrying
  • Rigging points for mounting monitors, batteries, audio interfaces, matteboxes, wireless lens controllers and other accessories


With a full HDMI output, the Sony A7S MK III pairs beautifully with Blackmagic Design’s Video Assist 12G unit. A 4K ProRes/DNxHR HDR recorder. The 5” and 7” models both feature an incredibly bright 2500 nit screen and a host of framing, focusing and picture analysis tools. The 7” model also gives users:

  • Dual card slots for extremely long (unlimited) recording times
  • Mini-XLR audio inputs for professional sound recording


An on-board monitor transforms the shooting experience. The camera’s screen is now dedicated to control and menu selection. A 5” or 7” monitor enables the operator to concentrate on framing, focusing and image control. Monitors cover all price points and all shooting environments.

SmallHD Focus OLED SmallHD Focus 5
Focus OLED
5.5” 350 nits
Focus 5
5” 800 nits
SmallHD 502 Bright SmallHD 503 UltraBright
502 Bright
5” 1000 nits
503 UltraBright
5” 2200 nits


Sony’s A7S MK III marks the arrival of CFexpress Type A cards. Its theoretical maximum performance of 1000MB/s cannot compare with the the extreme speed of Type B or C cards. The camera is also compatible with professional V90 SD cards which can be used to capture all supported HD and UltraHD and high frame rate formats:

Angelbird 64GB V90 Angelbird 128GB V90 Angelbird 256GB V90
Angelbird 64GB V90 Angelbird 128GB V90 Angelbird 256GB V90

Card Reader

Dual-slot SD card reader with USB-C

Angelbird SD Dual Card Reader


No bigger than a smartphone, Gnarbox 2.0 is an instant back-up device for SD cards. Its fast 1TB drive (256GB and 512GB also available) stores and protects all your video files. It supports H.264 and H.265 files playback over HDMI and previewing on connected mobile devices.

Gnarbox 2.0 SSD


Attach microphone systems to the camera’s 3.5mm audio port:

Azden PRO-XR Azden SMX-30
Azden PRO-XR
2.4 GHz Wireless System
Azden SMX-30
Stereo/Mono Switchable Mic

Both options deliver huge flexibility and excellent audio quality without the need to invest in XLR adapters.

ND Filters

Large sensor cameras are famously superb in low light. In sunlight, however, they need the help of neutral density filters to limit the amount of light hitting the sensor and forcing the user to use uncomfortably small apertures.

Azden PRO-XR Azden SMX-30
Syrp Variable ND Filter
1-8 stops
67mm or 82mm versions
Syrp Dark Variable ND filter
5-10 stops
67mm or 82mm versions

Each filter comes with a set of step-up rings for maximum compatibility with your lenses.

For more information please contact our Sales Desk:
+44 (0)1457 851000 | sales@holdan.co.uk.

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Angelbird SD Dual Card Reader
Angelbird SD Dual Card Reader

SD UHS-II Dual Memory Card Reader

Blackmagic Design Video Assist 5” 12G HDR
Blackmagic Design Video Assist 5” 12G HDR

Portable all in one 5 inch HDR monitor, recorder

Blackmagic Design Video Assist 7” 12G HDR
Blackmagic Design Video Assist 7” 12G HDR

Portable all in one 7 inch HDR monitor, recorder

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