Huawei Mate 50 Pro
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Huawei Mate 50 Pro

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  • Anonymous
  • pLi
  • 01 Oct 2022

Anonymous, 01 Oct 2022Exactly, and in smartphone, the longest focal length is the... moreI won't be making further comments on this topic as anyone who reads and understands will know who's right.

    • ?
    • Anonymous
    • pLi
    • 01 Oct 2022

    Bionic Chip, 01 Oct 2022Who said to multiply the longest focal to the zoom factor? ... moreExactly, and in smartphone, the longest focal length is the telephoto camera's focal length. Which is 90mm for mate50pro.
    My friend, SELP1650 isn't a smartphone camera lens, it's a zoom lens with variable focal length. Mate50pro's camera DOESN'T have this feature (only few Sony phones do on a very limited level).
    So here, we can only take main camera as the base and telephoto's 90mm focal length as the limit. The 315mm lens simply doesn't exist in mate50pro. In fact, s22u's 10x telephoto has 230mm focal length, so it would be a record breaking 315/24=~13x optical zoom, and I wouldn't be asking it's only 3.5x, lol. Hope it's clesr

      Anonymous, 01 Oct 20223.5x isn't significant at all with periscope setup. Y... moreYou don't get it.

      Even a 10x zoom factor is nothing when the focal length starts at a small number.

      Take this lens from SONY:
      SEL1650

      That is a ZOOM lens with zoom factor of 3.1x. Since the max focal length is just 50mm, it can be beaten by a lens with 2x zoom but with max focal length of anything above 50mm.

        Anonymous, 01 Oct 2022And may I also ask where did you get this idea of multiplyi... more"I demand you to show evidence form Huawei or any official source about 315mm focal length. Your claim hence your responsibility of showing evidence."

        Here we go again. I'm researching for you for free, to answer your questions. And again, you should contact Huawei since they keep patents and designs for their camera systems.

        And again, the periscope telephoto is a zoom lens. That's why we have a zoom factor of 3.5x. Otherwise, it's just a PRIME lens.

        ZOOM lens and PRIME lenses are different. You don't want to divide the max or minimum focal lengths of lenses of two different camera modules and get the zoom factor.

        I'm out of here since it's clear that you don't know how zoom lenses work. I happen to have three zoom lenses. The principles are the same: they zoom in and out. They have the shortest and longest focal lengths.

        Longest focal length/shortest focal length equals the zoom factor:

        Reference:
        "To determine the overall zoom ratio of the lens, simply divide the longest focal length by the shortest."—Sigma Photo, a lens manufacturer

          • ?
          • Anonymous
          • pLi
          • 01 Oct 2022

          Bionic Chip, 01 Oct 2022It doesn't matter if it's the full frame equivale... more3.5x isn't significant at all with periscope setup. Yes I know quite well that crop factor. The point I was making is that some may mistake the equivalent focal length for original one, but in fact actual focal lengths in phones are much smaller due to small sensors. Which means it's not as much of a struggle to fit in a longer focal length for more zoom. That's why 5x periscope is common, even 10x is achieved on s22u, which even has another telephoto lens.

            Anonymous, 01 Oct 2022And may I also ask where did you get this idea of multiplyi... moreWho said to multiply the longest focal to the zoom factor? That's illogical. You are dividing the focal length of the separate telephoto to the main camera's focal length. That's incorrect.

            "Zoom lenses are often described by the ratio of their longest to shortest focal lengths. For example, a zoom lens with focal lengths ranging from 100 mm to 400 mm may be described as a 4:1 or "4×" zoom." —Wikipedia

            To be clear, it is as simple as shortest focal length of a ZOOM lens multiplied by zoom factor.

            Example zoom lens: Sony SELP1650
            16mm to 50mm
            zoom factor is longest focal length divided by shortest, that is 16/50
            zoom factor is: 3.12x

            Example zoom lens: Sony SEL55210
            55mm to 210mm
            zoom factor is longest focal length divided by shortest, that is 210/55
            zoom factor is: 3.8x

            And here the reference from my previous posts:
            "For example, a 50-100mm zoom lens would be 2x zoom, and a 50-150mm zoom would be a 3x zoom."
            —SLR Lounge

              • ?
              • Anonymous
              • pLi
              • 01 Oct 2022

              Bionic Chip, 01 Oct 2022"104/25=4.33 (rounded down to 4) times optical zoom on... moreAnd may I also ask where did you get this idea of multiplying the longest focal length with the zoom factor from? It's nowhere to be found except form you!

              Yes, you're right (for first time), it's 7x zoom BUT only when compared to ultrawide sensor, which is a pointless measure. Remember, zoom is only a ratio. We care about the ration bw main and telephoto, not UW and telephoto.

              "we can assume that Mate 50 Pro's periscope setup is a 90-315mm zoom lens, that's why we get 3.5x magnification."
              So according to your claim, Mate 40 pro's telephoto camera can increase it's focal length to 315mm? That's simply untrue. It would be big news and many articles would be written if it was true. Only phones with variable focal length are from Sony.
              I demand you to show evidence form Huawei or any official source about 315mm focal length. Your claim hence your responsibility of showing evidence.

                • ?
                • Anonymous
                • pLi
                • 01 Oct 2022

                Bionic Chip, 30 Sep 2022Very funny 🤣 The periscope has a starting focal length o... moreSorry, you're wrong again. I've posted clear evidences and calculations already. And your calculations are plain wrong unless you put another 3.5x zoom lens from somewhere on top of that telephoto lens, maybe a clip on lens from eBay or amazon or aliexpress. My calculations are constant with official specifications and "315mm" is nowhere to be found on this phone's specs.

                  • D
                  • AnonD-1026644
                  • 7Xd
                  • 01 Oct 2022

                  Bionic Chip, 01 Oct 2022It doesn't matter if it's the full frame equivale... moreWe really need to know what the 90 mm focal length refers to. Is it the shortest focal length?
                  By the looks of it and the periscope telephoto's capability, it seems that the 90 mm equivalent refers to the shortest focal length. Therefore, if Huawei claims it to be a 3.5x zoom, then that's 315 mm for the longest focal length.

                  Writing a proper zoom lens specs should consist of the aperture/short and long range. Ex.:
                  f/3.5-5.6/28-70

                  This means that at 28mm, the aperture is f3.5 and at the maximum focal length, f5.6.
                  That's how you want to avoid confusion and senseless discussions.

                    Anonymous, 30 Sep 2022By the way, these ones on gsmarena are 35mm equivalent foca... moreIt doesn't matter if it's the full frame equivalent; the zoom factor is still the same. If you look at EXIF, for example, we see 18 mm, multiply it to the crop factor for conversion.

                    For example, the EXIF shows the shortest focal length of the phone's telephoto lens is 18 mm, zoom factor is 3.5x.

                    That is,
                    18 mm to 63 mm and still translates to 3.5x zoom.
                    Multiply these values to the crop factor, let's say 5.
                    That still translates to 90 mm to 315 mm. Zoom factor is still the same—3.5x.

                    (These examples are theoretical.)

                    But since your original concern is as to why Huawei even have to implement a periscope setup just to achieve a "3.5x" magnification which turned out to be a significant number in conjunction with the lens' focal length, then I can't answer that.

                    Just reach out to Huawei's customer support and question the existence of a periscope telephoto setup on Mate 50 Pro.

                      Anonymous, 30 Sep 2022Except that your working out is wrong. Again, that's n... more"104/25=4.33 (rounded down to 4) times optical zoom on pixel 6 pro."
                      "So mate 50 pro's main camera has focal length of 24mm and telephoto is 90mm. So 90/24=3.75 (GSMarena should fix it, it's not 3.5x it's 3.75x).
                      And for iPhone 14 pro max it's 77/24=3.21 (i think they just round it down to nearest 0.0 or 0.5)
                      For s22 ultra, 70/23=3.04 and 230/23=10 times optical zoom."

                      Where are you getting these idea of dividing the telephoto's focal lengths to the main cam's focal length? These are separate modules; separate lenses.

                      If that's the case, it's also correct to divide the longest focal length (telephoto) to the shortest (ultrawide)?
                      So for Huawei Mate 50 Pro,
                      that would be 90mm/13mm = 7x zoom.

                      "Zoom lenses are often described by the ratio of their longest to shortest focal lengths. For example, a zoom lens with focal lengths ranging from 100 mm to 400 mm may be described as a 4:1 or "4×" zoom." —Wikipedia

                      In Huawei Mate 50 Pro's case, I simply assume that the shortest focal length of the telephoto setup is 90mm, then multiply it by 3.5, so we get the longest focal length of 315mm.

                      Therefore, based on the specs published on this website, we can assume that Mate 50 Pro's periscope setup is a 90-315mm zoom lens, that's why we get 3.5x magnification.

                      That way, it makes sense.

                        Anonymous, 30 Sep 2022Except that your working out is wrong. Again, that's n... more"For example, a 50-100mm zoom lens would be 2x zoom, and a 50-150mm zoom would be a 3x zoom."
                        —SLR Lounge

                        Please don't mislead us. Read tons of articles and simplify the explanation.

                        🤷‍♂️

                          Anonymous, 30 Sep 2022Sorry you're doing it wrong. That's not the way t... moreThis conversation is pointless. Just reach out to Huawei's customer support and question the existence of a periscope telephoto setup on Mate 50 Pro.

                          The periscope setup has to be there since the sensor size for that module doesn't allow for it to be placed in the phone in conventional way.

                          The engineers know what they're doing here, unfortunately.

                          Periscope is simply a bunch of mirrors that reflect light. That's it. Nothing fancy.

                            Anonymous, 30 Sep 2022Sorry you're doing it wrong. That's not the way t... moreVery funny 🤣

                            The periscope has a starting focal length of 90mm.
                            The main cam's focal length has nothing to do with the periscope's zoom.
                            Lol.

                            90mm x 3.5 is simply 315mm. Yes you do some rounding, common sense.
                            Please read the SPECS and come back.

                            You're dividing it. Which is the opposite of multiplication 🤦‍♂️🤦‍♂️
                            Google optical zoom, please. It's not complicated. You just have to multiply it.

                              • ?
                              • Anonymous
                              • pLi
                              • 30 Sep 2022

                              Since actual focal length is much shorter, there's even less excuse for not using a longer focal length and hence more zoom

                                • ?
                                • Anonymous
                                • pLi
                                • 30 Sep 2022

                                By the way, these ones on gsmarena are 35mm equivalent focal length not actual. The formula is:

                                Equivalent focal length=actual focal length/crop factor
                                Crop factor= diagonal of full frame sensor (43.3mm)/diagonal of your phone's sensor in mm

                                You'll find actual focal length in EXIF data and sensod diagonal on Wikipedia or manufacturer website

                                  • ?
                                  • Anonymous
                                  • pLi
                                  • 30 Sep 2022

                                  Bionic Chip, 30 Sep 20220.5 more? That's huge step above 3x if we start at 90m... moreExcept that your working out is wrong. Again, that's not how to find zoom or focal length. Correct way is:
                                  104/25=4.33 (rounded down to 4) times optical zoom on pixel 6 pro.
                                  So pixel has 104mm lens in periscope, so why mate 50 pro only has 90mm when periscope allows for much more?

                                    • ?
                                    • Anonymous
                                    • pLi
                                    • 30 Sep 2022

                                    Bionic Chip, 30 Sep 2022It doesn't matter if it can zoom 3.5x or not. What mat... moreSorry you're doing it wrong. That's not the way to multiply for zoom. The correct way is:

                                    Zoom=max focal length (telephoto)/focal length of base lens (main camera)

                                    So mate 50 pro's main camera has focal length of 24mm and telephoto is 90mm. So 90/24=3.75 (GSMarena should fix it, it's not 3.5x it's 3.75x).
                                    And for iPhone 14 pro max it's 77/24=3.21 (i think they just round it down to nearest 0.0 or 0.5)
                                    For s22 ultra, 70/23=3.04 and 230/23=10 times optical zoom.

                                    So, you don't multiply the zoom to telephoto focal length as you did there, rather you multiply the zoom to main lens's focal length to approximate telephoto lens's zoom (i say approximate because advertised zoom is slightly inaccurate as shown above).

                                    Yes, maybe you're right that 90mm lens may not fit without increasing phone's thickness so they need to fold it into periscope setup. But, once they did go periscope, question is why be limited to 3.5 or 3.75x and not go for lets say 5x? There's plenty of room so why be limited to 90mm?

                                      • ?
                                      • Anonymous
                                      • 6kH
                                      • 30 Sep 2022

                                      Ellenes, 30 Sep 2022Verry big price.for this money you can buy asus rog phone 6... moreNo rog is for gamers and mate 50 pro is all in one beast.
                                      If we don't consider gms it's second after iphone 14 pro max in this year.

                                        JJANIS, 29 Sep 2022Great specs for phone. Love the possibiliti to use google s... moreVerry big price.for this money you can buy asus rog phone 6s and its more good in specifications