The third camera in Sony’s Cinema Line, the Sony FX6 is a full-frame cinema camera that’s lightweight and fully featured. Sony’s predecessor, the FS5 II, is a small body super 35 cinema camera. The FX6 comes with all of the bells and whistles of the FS5 II, but has a larger sensor, new media options, higher frame rates, XAVC-I 10bit 422 internal capture and new mounting options. It can shoot up to 240 frames per second (fps) in HD, 120fps in UHD 4K and up to 60fps in DCI 4K.

Sony FX6 with the Sony FE 24-105mm f/4 G OSS lens

Size and weight

Our first reaction when pulling the camera out of its box is that it’s surprisingly small and light. Made from magnesium alloy, the camera is just slightly heavier than the FS5 II at 1.96lbs compared to 1.83lbs. Even though it has a larger sensor, the body is slightly shorter and deeper, with only the width being larger by .1 inch. 

Grip side view of the Sony FX6 with the Sony FE C 16-35mm T3.1 G Lens

Grip and monitor

The adjustable smart grip is fantastic. It’s easy to adjust and comfortable to use. It brings all the functions to the fingertips. New to the FX6 are multiple mounting points for the monitor. It secures to the front left, rear left and the rear right. The monitor has a touch function but has to be activated using an assignable button before it works.

Sony says the reason for this is to keep from wrongly touching it and changing a setting. We’ve reviewed many touch screens and this rarely happens. Button activated touch function is not that big of a negative, but we feel it’s unnecessary. 

Camera control using a phone

With the CBM app, the focus, iris and zoom can be controlled. Plus, it can be used to preview the shot. When using Catalyst, the camera captures metadata that indicates camera rotation information, clip flags and image stabilization data. 

Media Card slots on the FX6 with Sony Tough 160GB CFexpress Type A media card

Updated media

The camera has two card slots with the ability to accept two different types of media. It can take either UHS-II or UHS-I SDXC cards. Both media types have been around a while and are relatively inexpensive. It also works with the new, much faster CFexpress Type A cards. The camera only needs the CFexpress Type A for shooting at its highest frame rates and at the highest data rates.

We don’t see a big need to buy the CFexpress Type A cards unless 120fps in UHD4k in 10bit 422 is what you need to do. However, these new cards will offload much faster. Like past cameras in Sony’s cinema line, the FX6 can create proxies on the second card while recording your native footage. 

side controls on the Sony FX6 including the gain control of the XLR audio inputs

Audio inputs

The camera has a flexible audio workflow. It has two XLR inputs with exterior controls to adjust the gain. The camera can capture up to 4 channels at once. That means it can capture the stereo mic built into the handle—along with those two XLR inputs—or using the multi-interface shoe on the camera it can use one of two accessories. The XLR-K3M gives two more XLR inputs and the URX-P03D w/ SMAD-P5 allows for wireless digital audio. 

The image

As expected, the image quality of the FX6 is quite nice. It has a full-frame 10.2 megapixel (MP), back-illuminated CMOS Exmor R sensor. The low megapixel count allows for larger pixels, which allow for extra sensitivity. We will elaborate more on that in the low light performance section. Using its Bionz XR processing engine, the camera has S-Log3, S-Gamut3, S-Gamut3.Cine along with S-Cinetone, so it can be a good match to the FX9 and the Venice. 

Variable ND controls on the side of the Sony FX6

The electronic variable ND

One of the best features of the FX6 is its variable ND filter, which was first introduced in the FS5 and later included in the FS7 II and FS5 II. This ND also allows for a perfect setting because it can go between its steps ¼ and 1/128. This opens up the ability to have the ND counter any adjustment in aperture. This allows for a rack focus of sorts with the depth of field.

Say the exposure is set at f2.8, by using the auto ND to darken the scene so that perfect exposure is possible. Then through automatic adjustment, the ND and increasing the aperture counter each other. The scene can then go from a shallow depth of field to a deep one in the same shot, without composite. Outside of that party trick, it’s more useful when transitioning from indoors to outdoors. It offers no ND filter bloom for a smooth transition through different lighting situations, even when dynamic. 

Performance tests

Auto focus

The FX6 has what Sony calls fast hybrid autofocus (AF). It is a combination of phase and contrast detect autofocus. It offers 627 focal plane phase-detection points with face-detect AF and real-time eye AF.

To test the AF system, I walked from 20 feet away, straight at the camera at a normal walking pace. In our first test, I was wearing a mask and it seemed that the camera had a hard time finding my eyes with the mask on. We then duplicated the test—with the mask off—the performance didn’t improve.

We did see good performance when close to the camera. Standing about 4 feet away, I came in and out of the frame. Once the camera had found and focused on my face, I moved in and out of frame. The camera snapped quickly back in to focus on my face when I returned.

Although it worked very well when we left the frame and came back in, it had a hard time finding the face and then keeping it in focus as we moved closer to the camera. We then tested moving toward the camera in a zig-zag fashion, slowing our speed moving toward the camera. Doing this allowed more time for the camera to find track and focus on the face. This was an improvement but still wasn’t as good as we saw with the Sony a7S III

Low light

The camera has an ISO range up to ISO 409,600. It has two sensitivity settings—base sensitivity at ISO 800 and enhanced sensitivity at ISO 12,800. To test at what point noise would enter the image, we did an ISO ramp from ISO 200 and up to ISO 409,600.

We doubled the ISO and countered that with aperture and shutter speed, to keep the same exposure. The image looked good to use up to ISO 102,400. That’s an incredible low light performance. This puts the FX6 as the go-to cinema camera for run and gun shooting.

Documentarians and other shooters that are unable to control the shooting situation will benefit from its low light performance. 

Battery life

Because it’s a cinema camera, the FX6 has multiple battery options, depending on what the user might need. We tested the camera with the BP-U35, which costs $160 when bought by itself. This is the smallest battery offered for the FX6, but offers an impressive 155 minutes of battery life. Larger and more expensive are the BP-U70 and BP-U100 batteries at $320 and $450 respectively.

Dynamic range

We tested the dynamic range of the FX6 with our DSC labs Xyla 21 chart.

When exposing the first light far to the left, we set it at 100 ire. Every light in the chart the camera captures after the first one is a stop of dynamic range. Sony says the camera can capture 15+ stops of dynamic range and our test confirmed it. Shoot in S-log3 in S-Gamut for the same result, the camera’s dynamic range is significant. 

Sample of the rolling shutter performance of the Sony FX6

Rolling Shutter

This camera has a rolling shutter. However it does not have a rolling shutter problem. The amount of bend to vertical lines when doing a quick pan is minimal. We would not be worried about shooting this camera in situations, when quickly panning or shooting fast objects. 

The Sony FE C 16-35mm T3.1 G Lens

Lenses

The FX6 has the Sony E Mount that Sony now offers 58 different lenses for. There is also a large amount of E mount lenses offered by third parties.

We shot two lenses during the duration of this review. The first is the brand new FE C 16-35mm T3.1 G servo-controlled cine-zoom. With a price tag of $5,500, it’s not a cheap or affordable lens. However, it has a fantastic optical quality.

The servo zoom can be detached to make the lens lighter for those that don’t need it. It can have either smooth transitions or click aperture ring control. For those that are used to f numbers, T3.1 is around an f2.8. This is a great lens, but because of its price, it’s not likely to be for everyone. 

The other lens we tested is the Sony FE 24-105mm f/4 G OSS. This lens can be bought as the kit lens for a discount when coupled with the camera upon purchase. It’s a fine lens for the camera and gives a great focal range with an aperture that is easy to deal with because of the low light sensitivity of the camera. When bought by itself, the lens costs $1,400. 

Sony FX6 view with the Sony FE 24-105mm f/4 G OSS lens.

Marketplace

Sony is the first to offer a full-frame cinema camera in this price range. Canon has the C500 MK II, but it costs $16k, so it’s likely not in the same consideration as the FX6. Sony offers the FX9, just above the FX6, and as expected it’s more money at $11k. So, that leaves us with cinema cameras with a smaller super 35 sensor size. 

Canon C70 cinema camera

Canon C70

First up is the brand new Canon C70. At $5,500, the C70 uses the Canon mirrorless lens mount and can capture up to DCI 4K in XF-AVC at 4:2:2 in 10bit. Frame rates up to 120 in DCI 4k and 180fps in HD, also in 422 10bit. The C70 has a built-in classic step ¼ to 1/1024 ND filters. It has two XLR inputs, but they are micro XLR, so an adapter will be needed to use them. Lastly, It shoots to two SDXC/SDHC card slots. 

Panasonic EVA1
Panasonic EVA1

Panasonic EVA1

The EVA1 shoots up to 5.7K on its super35 image sensor for $6,500. The camera has the Canon EF lens mount and offers dual native ISO. The EVA1’s top frame rate is 60fps in DCI 4k. It captures 422 10-bit video to two SDXC V60 card slots. The camera has a built in mechanical ND filter with a range of ¼ to 1/64. The camera has two full sized XLR inputs and a similar grip to the FX6.  

3/4 view of the Sony FX6 with the Sony FE C 16-35mm T3.1 G cine servo zoom lens

Final thoughts

Sony has made a solid, feature-rich cinema camera in the FX6. The variable ND is a great feature and it can practically see in the dark. We hope that the move to a full-frame cinema camera spreads to other brands and Sony has given them a high bar to reach for. We would have liked the autofocus to work better, but the ergonomics it has are great. If you like the Sony look, require a high-quality high frame rate capture and need great low light performance, the Sony FX6 is a great choice. 

STRENGTHS:

  • Incredible low light performance
  • 10bit 422 120fps in 4K

WEAKNESSES:

  • AF not suitable for all shooting conditions

RECOMMENDED USES:

Narrative Filmmaking

Any project that requires extensive planning and takes on a cinematic aesthetic

Documentary Filmmaking and Journalism

Run and gun videography where conditions are unpredictable and  agility is key

Corporate and Event Videography

Situations where ease of use and reliability is more important than the film look

Marketing Video Production

Short form video produced on a schedule

PRICE:

Body – $6,000

Kit w/ 24-105mm f4 lens – $7,200

FE C 16-35mm T3.1 G Cine lens – $5,500

TECH SPECS: 

  • Sensor: Full frame back illuminated CMOS Exmor R sensor
  • Processor: BIONZ XR
  • Lens Mount: Sony E- mount
  • Autofocus: Face Detection and Real-time Eye AF
  • ND filter: Variable electronically controlled optical ND Filter
  • Resolutions: HD, QFHD, DCI 4K
  • High Frame Rates: up to 240fps
  • Video Format: XAVC Intra & Long
  • Bit depth: up to 10bit
  • Bitrate: up to 600 Mbps
  • Gamma: S-Log3
  • Color Sampling: up to 4:2:2
  • Color Space: S-Gamut3 and S-Gamut3.cine
  • Weight: 1.96lbs
  • Interface: 12/6/3-G SDI, SDI RAW output, TC in/out

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5 COMMENTS

  1. Great review, Chris! Thanks for posting. The Sony FX6 camera certainly is interesting, but I would like to see a direct side-by-side comparison with the Canon C70 and Sony A7S III, including low-light performance and auto-focus. The situation you tested the AF in, where the face often dipped into shadow, and zig-zagging across the frame center, presents quite a good challenge to see how these AF systems would hold up. As for low-light, the FX6 still seemed rather noisy to me, and presented significant color shifts from ISO 400 to 3200. Would also like to see the low light test on an actual scene with human test subject under controlled lighting. Hope you guys can get your hands on all 3 cameras in the future to do a shootout. Some additional points of comparison can be battery life and slow motion (try a dripping tap under controlled lighting or hairspray igniting from a lighter at 4K 120). 🙂