Hands On Preview: Sony RX100 IV

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Sony Singapore had introduced two new exciting cameras in its Cybershot RX series on Thursday 2 Jul 2015, the RX 100 IV and the RX 10 II.

Sony RX100 IV
Sony RX100 IV

Despite of the size difference, both of the cameras boast the world’s first stacked 1.0″ CMOS sensor with DRAM memory chip, 40x super slow motion capture, 4K in-camera video shooting, high-speed anti-distortion shutter and more. In this preview, we’ll focus on the RX100 IV.

You can say that the RX100 IV is essentially the RX100 III equipped with the new stacked 1.0″ CMOS sensor with DRAM memory chip because they use the same Zeiss Vario-Sonnar T* lens, same retractable XGA OLED Zeiss T* coated Tru-Finder, same 180-degree tillable LCD monitor, and etc. The RX100 IV’s appearance is same as its predecessor the RX100 III, except the focus ring is now decorated with diamond shape.

Diamond Shape Focus Ring
Diamond Shape Focus Ring

Let’s see what does the new image sensor brings to the RX100 IV and RX10 II, and some feature highlights sample shots from the RX100 IV

40x Super Slow Motion Capture

Well, although slow motion recording is not something new as you can find this feature in the professional DSLR or even in some of the smartphones, but the Sony RX100 IV and RX10 II are capable to record at 40x slower rather than the 10x slower recording we found in the smartphones.

The RX100 IV and RX 10 II are capable to record super slow motion videos up to 1000 fps and save the video among 60p/50p/30p/25p/24p playback formats. For example, a 2 seconds video shot at 1000 fps and 25p will take approximately 80 seconds to playback. I uploaded a full HD 2 seconds (recording in real life time) sample recording (playback for 80 seconds) but I trimmed the video and show the last 20 seconds below (The first minute of video can be said as totally static and that’s the reason I trimmed it).

You can record the HFR video in two modes, start trigger and end trigger. In start trigger mode, the recording is started once the movie button is pressed; In end trigger mode, the RX100 IV will record the video that begin 2 to 4 seconds before the movie button is pressed. The video above was shooting using the end trigger mode. During the short hands-on period, I found that the end trigger mode gave the more consistent and accurate result.

The video was saved as full HD (1920 x 1080) by default which provides amazing detail and clarity. You need an SDXC memory card of Class 10 or higher to shoot the HFR (high-frame-rate) video, using the mode dial to select HFR then you are ready to shoot super slow motion video.

High Speed Anti-Distortion Shutter

The 1.0 type stacked Exmor RS CMOS sensor with an attached DRAM chip gives an impressive continuous shooting speeds of up to 16fps on the RX100 IV, and up to 14fps on the RX10 II.

The new high speed Anti-Distortion Shutter has the maximum speed of 1/32000 second which allows the new cameras to shoot with a wide open aperture at brightness levels up to EV19 using a built-in ND filter. Below are few sample shots using the maximum shutter speed of 1/32500 second and ISO 6,400.

From the sample shots above, you can see that how capable the RX100 IV is. The results are pretty impressive for such a compact camera and the noise/detail ratio is well-managed by the 1.0″ image sensor.

Direct 4K Movie Recording

Both of the RX100 IV and RX10 II are capable to record 4K (3840×2160) movie without pixel binning using XAVC S codes , which records video at 100Mbps during 4K recording and 50Mbps during full HD shooting (you need an SDXC memory card with UHS Speed Class 3 for recording at 100Mbps).

The RX100 IV is capable to shoot 4K videos up to 5 minutes while the RX10 II can shoot 4K videos up to 29 minutes.

Dual Video Recording

Both RX100 IV and RX10 II are capable to do dual video recording which allow shooters to shoot still at 16.8 megapixel during 4K video recording.


Starting from 3 July 2015, the new Sony Cyber-shot RX100 IV will be available for preordering at all Sony Stores, Sony Centres, and selected authorised Sony dealers at S$1,399. All preorders will come with a Leather Carrying Case (LCS-RXG) and a 64GB High Speed SD Card (SF-64UZ).


The RX100 IV and RX10 II will be available at 16 July 2015 at S$1,399 and 30 July 2015 at S$1,899 respectively as well. You may find more details on the RX100 IV and RX10 II via http://www.sony.com.sg/product/dsc-rx100m4 and http://www.sony.com.sg/product/dsc-rx10m2.

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