Sony Cyber-shot DSC-RX100 Mark IV Review - Performance

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Sony Cyber-shot RX100 IV Performance

The performance section is where we look at the image quality performance of the camera. Additional sample photos and product shots are available in the Equipment Database, where you can add your own review, photos and product ratings.

Speed - We took a number of shots to test the camera's responsiveness, from switch on to first photo, shot to shot, focusing speed etc. We take a number of shots and then use the average to ensure accurate and consistent tests, making it easy to compare with other cameras.

Shutter Response 0.0secs
Wide - Focus / Shutter Response 0.15secs
Full zoom - Focus / Shutter Response 0.15secs
Switch on Time to Taking a Photo 2.1secs
Shot to Shot without Flash 0.1-0.2secs
Shot to Shot with Flash 2.0secs
Continuous Shooting - JPEG
(shots before slow down)
14fps (48 shots, JPEG Fine)
Continuous Shooting - Flash 1.8s
Continuous Shooting - RAW 8.3fps (29 shots)


Focus and shutter response are both extremely quick, and the camera has a good shot to shot time, although switch on time is a little slow, as is the flash recharge time. Continuous shooting speed priority uses the electronic shutter to shoot at 14fps for JPEG images, and 8.3fps for raw images. It takes the camera 13 to 14 seconds to write JPEG or raw images to the memory card after shooting until the buffer is full. Tested using an integral ultima pro X 32GB SD card.

Sony Cyber-shot RX100 IV Sample Photos

Sample Photos - Exposure is reliable, and the camera records a good level of dynamic range when DRO (Dynamic Range Optimisation) is left on Auto. This can be altered, or you can use the HDR shooting mode for additional dynamic range. The camera takes photos with good colour, with good saturation levels, without being overly saturated. There is no red-eye visible in the portrait photo taken with flash, and skin tones are good.

Sony Cyber-shot RX100 IV Lens test images

Lens Performance - The lens is bright at the wide-angle end of the lens with an f/1.8 aperture, and an f/2.8 aperture at the telephoto end of the lens. The lens zooms from 24mm equivalent wide-angle to 70mm equivalent telephoto. Detail is good and quality remains good into the corners of photos whether shooting wide-angle or telephoto. The lens is quite resistant to flare although when the sun is in the frame flare can be an issue depending on the position of the sun. Purple fringing and chromatic aberrations are minimal, with images corrected in camera. Macro photos can be taken with the subject 5cm from the lens when shooting wide-angle, and 30cm at the telephoto end. There is some vignetting visible when shooting at the wide-angle end of the lens, but minimal barrel distortion.

Sony Cyber-shot RX100 IV ISO test images

ISO Noise Performance - For the lowest noise and best detail possible we would recommend using ISO80 to ISO800, as images have low levels of noise and good levels of detail. For lower light situations ISO1600 to ISO6400 still provides good results, although noise increases and detail is reduced. At ISO12800 noise levels become strong and we would recommend avoiding this setting if possible, although results may still be useful if resized and used on the web. ISO12800 and ISO25600 could still be useful when shooting using the multi-frame noise reduction mode, however detail is low.

Sony Cyber-shot RX100 IV White-balance test images

White Balance Performance - Auto White Balance (AWB) gives a warm colour cast under tungsten lighting, with the tungsten preset giving an accurate result. AWB performs well under fluorescent lights, with the fluorescent preset giving a slight magenta colour cast.

Panoramic | 1/500 sec | f/5.6 | 8.8 mm | ISO 125
Panoramic | 1/500 sec | f/5.6 | 8.8 mm | ISO 125

Panorama mode - The camera features an automatic panoramic mode, where you simply press the shutter release button and pan the camera from one side to the other. Results are good, and well stitched together, with a good resolution image produced.

Sony Cyber-shot RX100 IV Digital filters

Digital Filters - Picture effects can be selected when shooting JPEG images (raw is not available). There are also colour options (called Creative Style), that let you adjust the contrast, saturation, and sharpness, and this is available when shooting JPEG and raw.

Video - The camera records 4K Video at a resolution of 3840 x 2160 at 25fps, with stereo sound and optical zoom available. Video compression options include pro-grade XAVC S codec at 100mbps, and you can record slow motion videos at 1000fps. To record 4K and High Speed video you need to use a UHS:I, U:3 memory card. ISO12800 is available as the highest ISO setting available. 

Standard video resolution and compression options are:

  • XAVC S 4K - 25p, 100Mbps, 25p, 60Mbps
  • XAVC S HD - 1920x1080 50p, 50Mbps, 25p, 50Mbps, 1920x1080 100fps, 50Mbps
  • AVCHD - 50i, 24Mbps, 50i 17Mbps, 50p, 28Mbps, 25p, 24Mbps, 25p, 17Mbps
  • MP4 - 1920x1080, 50p, 28Mbps, 1920x1080, 25p, 16Mbps, 1280x720, 25p, 6Mbps

High speed (HFR) video options available: 

Quality Priority: 2 seconds

  • 240fps/250fps (1,824x1,026)
  • 480fps/500fps (1,676x566)
  • 960fps/1000fps (1,136x384)

Shoot Time Priority: 4 seconds

  • 240fps/250fps (1,676x566)
  • 480fps/500fps (1,136x384)
  • 960fps/1000fps (800x270)


The high speed video is then upsampled to a resolution of 1,920x1,080. Additional example videos can be found on the ePHOTOzine YouTube channel, including high speed examples.

 


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Photographs taken using the Sony Cyber-shot RX100 IV

Memento MoriResting CyclistSecure?Willy's (waterloo trog2)Saturday Shadowsdidn't need telling twicemothviewButterfly (Unknown make) on Flower (Unknown make), any help

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Comments


josa 7 25 Czech Republic
18 Sep 2015 5:21PM
Certainly a desirable camera except price.Softer at the tele settings.

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dcash29 14 2.4k England
18 Sep 2015 10:08PM
I'll keep my nex6, far better image quality
22 Sep 2015 1:38AM
It has over heating problem!

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