Sony announces A7 IV with 33-megapixel sensor and 4K 60 video

21 October 2021
Features significantly improved video capabilities for a true hybrid camera experience.

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  • 22 Oct 2021

The a7iii was quite a revolutionary camera, this just seems to be an evolution.

    SigmaR, 22 Oct 2021Canon R5 does it, it gives you an option to oversample 4k f... moreOversampled 4K of the R5 is only in 30fps, while 60fps has a slight 7% crop. Still, the A7 IV is a much cheaper camera and should not be really compared to the R5.

      Anonymous, 22 Oct 2021Check out the Nokia/Microsoft Lumia PureView smartphones. T... moreThat is not the thing to be excited about. The exciting thing was, how natural, they rendered images straight out of the camera. Just like a professional camera would do. I would still go to Lumia's review page, pixel peep the images, and wonder, "This was we were supposed to go."

        • ?
        • Anonymous
        • xHY
        • 22 Oct 2021

        TheAccountant, 22 Oct 2021hello everyone, I want to ask if there is any smartphone t... moreCheck out the Nokia/Microsoft Lumia PureView smartphones. They may not have a large Megapixel unlike the 808 PureView and the Lumia 1020 (20MP vs 41MP), but they can record 4K video and use oversampling technique as well as in Photo mode.

          • ?
          • Anonymous
          • xHY
          • 22 Oct 2021

          Anonymous, 22 Oct 2021These "Oversampling" comments remind of the legen... moreIkr. Those old PureView smartphone cameras are so ahead of their time and still remain unchallenged to this day.

            • L
            • Lccy
            • n1k
            • 22 Oct 2021

            SigmaR, 22 Oct 2021Canon R5 does it, it gives you an option to oversample 4k f... moreThe Canon r5 line skips for its full width 4k60 output or crops at 1.6x, at 30fps, the Canon r5 can oversample from the entire sensor, or downsample from 8k, and you can see on dpreview test charts it produces the best 4k video, one of the very few truly capable of 4k resolution.

              • L
              • Lccy
              • n1k
              • 22 Oct 2021

              TheAccountant, 22 Oct 2021hello everyone, I want to ask if there is any smartphone t... morePhones don't oversampling if at all as they are mainly 12mp 4:3 sensors which when cropped to 16:9 are not much different to the 8mp 4k resolution.

              48mp, 50mp and 108mp sensors are quad Bayer or teracell sensors which are designed to combine pixels nanvand output at 12mp, you don't get any extra detail in 48mp mode as the color filter covers 4 instead of 1 pixel, so the next neighbouring colour group is further away

                Lccy, 21 Oct 2021There is no full frame sensor with 33mp that can do 60fps r... moreCanon R5 does it, it gives you an option to oversample 4k from 8k video in camera. But it's a much more expensive camera compared to A7 IV

                  • ?
                  • Anonymous
                  • 7kk
                  • 22 Oct 2021

                  These "Oversampling" comments remind of the legendary Nokia (Lumias) of yore, those innovative and way ahead of their time sensors and processing is still something I'd like to see emulated today.
                  Not sure how much the Lumia 1520, 930 & 950/XL cropped for 4k, but I wish we got 4k on that beautiful 41MP sensor

                    hello everyone,
                    I want to ask if there is any smartphone that records oversampled 4k. if not, what is the reason? We know processing power is no longer a constraint.

                      prasad-gsma, 21 Oct 2021Could do birds and animals in stills but the A7 IV can also... moreOh, I missed that part, I thought it meant just photos. That makes more sense. Thanks for clearing that up

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                        • Anonymous
                        • 8Kf
                        • 21 Oct 2021

                        Lccy, 21 Oct 2021There is no full frame sensor with 33mp that can do 60fps r... morePhones do not provide high quality video because of small sensors.
                        Even if they were multi aspect, still not help.

                        Also phones apply lots of EIS, this decrease quality.

                          • ?
                          • Anonymous
                          • gr4
                          • 21 Oct 2021

                          DjAlonDevil, 21 Oct 2021You guys should've bolded the fact that there's a... moreIf you want the the 4k60 with the full sensor, just buy the A1 or A7S3, just have to pay more for the more capable product.

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                            • Lccy
                            • n1k
                            • 21 Oct 2021

                            Anonymous, 21 Oct 2021Simple sensor with slow readout. Uncapable of FF 60fps. There is no full frame sensor with 33mp that can do 60fps read out full width.

                            IPhone sand other mobile devices that claim 4k60 don't produce 4k quality video because 12mp 4:3 sensors barely oversample if at all for 16:9 video, because of bayer interpolation, you need to significantly oversample to get true 4k resolution.

                              DjAlonDevil, 21 Oct 2021You guys should've bolded the fact that there's a... moreI suppose that could be an issue for some people. Then again, Sony still has to sell those A7S III.

                                SuuperBaka, 21 Oct 2021What do you mean for a first time on Sony cameras: "ey... moreCould do birds and animals in stills but the A7 IV can also do it in video.

                                  • ?
                                  • Anonymous
                                  • 8Kf
                                  • 21 Oct 2021

                                  DjAlonDevil, 21 Oct 2021You guys should've bolded the fact that there's a... moreSimple sensor with slow readout.
                                  Uncapable of FF 60fps.

                                    What do you mean for a first time on Sony cameras: "eye tracking on animals".

                                    Did they not have eye tracking on them? I'm sure birds were the new thing they had

                                      You guys should've bolded the fact that there's a super 35 crop when shooting 4K60. Completely a joke from Sony.

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