How optical zoom works on a smartphone - Gary explains
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- Опубліковано 26 лип 2024
- Read more: goo.gl/qDtq2Y
Dual camera smartphones boasting "optical zoom" capabilities are appearing more often now. Here's a breakdown of how the technology works.
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How about a smartphone with 3 cameras set up for normal photos, 2x optical zoom, and wide angle lens... that would be cool.
yes i thought about it too
hidenproductions great idea on paper but ut would look silly
Why not just have the sensor move between the 3 lenses with a slider rather than putting 3 sensors in the phone
hidenproductions Then you can say goodbye to headphone jack, larger battery, fingerprint scanner and other things. its all about internal hardware space and keeping the thing we like vs the size of the phone vs a bunch of other things.
Pretty sure some manf have thought about using 3 lenses with only 1 sensor but it would likely not work too well as lens + sensors are precision instruments; to make a mechanical system capable of doing that precisely over x number of actuations would probably be expensive and large
Gary your amazing at explaining something in so much detail 👍
This bloke is the David Attenborough of tech
Tony Nguyen EXACTLY
thank you Gary
have a reply
news
I don't know who this Gary character is or why he's explaining things but I like it.lol
You aré the Best reviewer of tecnology in UA-cam !👏🏻
So happy you persisted in doing this in spite of all the early hate against you Gary. I've always thought these videos were amazing.
Love the video thanks Gary.
Good video, gary. There are/were smartphones with actual optical zoom like a lens on a camera - Asus Zenfone Zoom & a Moto-Z with that Hasselblad Moto Mod thing; and maybe one or two other older models that I don't recall
Steven Leong Lumia 1020??
Musa Hoosain, I believe the "zoom" for the 1020 is basically high quality cropping from that massive 40MP+ sensor, i.e. digital zoom
my biggest frustration of smartphone camera's is not having optical zoom.
At one point there was a debate if more pixels really are better. And I always supported more pixels just because it gives you the possibility to actually zoom a bit and keep the object sharp. Now with my 12 MP camera of the htc 10 I really miss that. I got used to taking pictures with mij Xperia compact Z3 and keep being dissapionted that even object a meter of 10 away from me are far from sharp.
They have optical zoom now
Thank you Garry, as usual a nice and detailed explanation that can be easily followed by any non-tech savvy
best thing in this channel TBH.
Gary dropping' knowledge as usual.
best explaination on UA-cam
Great explanation. I was so puzzled by manufacturer claims of having an optical zoom. Thanks!
do more of these on cameras Gary u explain so well 🙂
Quad camera setup needs to happen
1. black n white depth information sensor
2. the usual rgb sensor with 24mm focal length
3. 135 degree wide angle lens
4. 50mm zoom lens
thanks for explaining...🙃
Gary you are the education DON.
I love this series, thank you Garry.
Too bad you could not ccover the Zenfone Zoom's setup which offers real zooming with some sort of periscope system if I'm not mistaken.
good video!
I got my answer in the best clear explanation.
*GARY!!!* Afternoon Professor
MARK!!!
Thanks for spending 3 minutes explaining something we already understand. We wouldn't click on this if we didn't.
The difference between digital zoom (cropping) and optical zoom is compressed perspective created by optical zoom.
Don't you love that Oneplus 5 in the background does not have optical image stabilization as Gary talks optical image stabilization?
My old Sony phone had a camera that when zooming in or focusing would make a sound with the camera. I believe it didn't have a fixed focal point but rather actual optical zoom
based on my observation, the lens in smartphone actually moves when the camera focusing on object but it is very subtle movement. Try it with smartphone that has manual focus and large aperture. For example, Galaxy S7.
It's still fixed focal length though.
there is a concept for a camera chamber sit inside the phone width with glass reflection and stuffs so it can increase/decrease the length from the lens to the sensor... don't know how long until we get this but it will supposed to be only use single camera and offer a custom zoom magnification level
While what you have said Gary is mostly true there are a few phones that do not actually fall into exactly what you have said. The Nikon Coolpix S800c for example while technically more a point and shoot camera than phone but it was running full Android and so I believe could have made VOIP/Skype etc calls at least if you used a Bluetooth headset. I also thought there was a Sony phone but I can't see to find it. I think I remember reading on AA a month or 2 ago that one of the unreleased models is going to offer true optical zoom by making a sort of periscope.
I could see in future that it may also be possible to use the High Res shot mode type technology used in some of the top Olympus cameras to offer more resolution in an image which then could be cropped with less noise etc. I guess in a way they are doing this to an extent now by combining the images from 2 cameras but doing sensor shifting I am sure to give a better result at least when there is nothing moving in the scene.
I'd appreciate it if you could make another "gary explains" video on dual lens setup used by huawei
Can you explain how the camera system of the Tango ar works?
1:42 Since the convergence angle changes when the focal length changes, a more accurate magnification ratio might be MR = (f1/f2)*(f2-dObj)/(f1-dObj) as derived from the Thin Lens Equation, instead of just f1/f2. Equivalently, MR = (f2/f1)*(f1-dImg)/(f2-dImg).
Finally understand why I like the old P30 Pro and S10+ compared with the new S21 and Pixel 6 crap.
Gary should explain everything.....everything lol
very Impressed. You've taken me to school, and I am the better for it.
how about the Oppo's 5x zoom? The one with the Periscope or something in it? ( I forgot what it's called but if I remember correctly it's also used in submarines to see)
Tell me gary. What's the best smartphone out there that has a better camera system which doesn't overheat?
Hi Gary, Could you do a part or whole segment on how cell phone speakers work and why they can't seem to make it where loud speaker, isn't just a name? Maybe the companies will see your video and get it right. Thanks Gary.
Hi Gary,
I use ASUS Zenfone Zoom that can do 3x Optical Zoom with a periscope mechanism.
Gary Sims is to Android authority what Richard Leadbetter is to Digital foundry
How does the asus zenfone 3x optical zoom work?
if its changing the camera how can my iphone seven use the same camera ?
I think Gary forgot the Oppo 5X phone, with 5 times optical zoom, no camera bump.
I think if want to take high quality shooting we should forget the camra on smartphone and put some budget on a real camera as I did in the end.
asus ZenFone zoom had a single lens camera but it provided 3x optical zoom
sorry gary...optical zoom is not only limited to dual camera phones..nokia was actually moving the lens as in dslr to provide optical zoom as early as 2006 in nokia n93
what about those cameras from oppo and gionee which makes a 50 megapixels photo from 13 megapixel sensor..
Danish Khan that's multiple photo trick... don't be tricked. it's like, I take 10 photos with different ISO and other settings, and add them layer by layer in Photoshop, then I could get a photo with HDR and details from each photo of each setting. Problem is that Oppo's camera is not good enough to produce great photos, it's OK level. Plus the shaky hand and moving object, this type of photo is hard to be perfect.
I like honor 9
Is optical lens and optical zoom same please someone tell me..
the robert triggs article: www.androidauthority.com/dual-camera-optical-zoom-technology-explained-781993/
It is also linked in the video description. :-)
You forgot about oppo's 5x optical zoom
starts at 3:25
i love my samsung galaxy k zoom with 10x optical zoom
It looks like the S9 Plus has real optical zoom (2x).
Video starts at 3:30
How optical zoom work on a smartphone. They don't
This doesn't need to be a 7 minute video...
Jamal Mahroof And you don't have to watch the video.
With a couple exceptions from past smartphone generations:
www.tomsguide.com/us/nokia-lumia-1020-vs-galaxy-s4-zoom,review-2901.html
huawei best zoom
Android Authority........ with an iPhone at the background......
This is a general piece about smartphones with optical zoom. I mainly talk about Android phones but what I say is equally true of the iPhone 7 Plus.
iPhone? I see OnePlus android phone at background.
Bloody Wolf that's the joke
This is wrong I have done 10 different courses in photography
Gary stop it please 💦
yo first. this made my day lol.
if that made your day - your day was really rubbish.
congratz!!
dont let the negative comments ruin your day. 😄👍
ydn your life must also be even more rubbish
Get to the point Gary....
gimmicks and waste of space
How is optical zoom a gimmick? It's very nice thing to have. 2x optical zoom is rather lame though, I'd wish seeing 5x or more and it would be cool if the phone could actually somehow move the optics to produce any focal length between 1x-5x. That might be impossible though with the ultra thin smartphones of today.
PhazonBlaxor sorry i meant adding a 2nd camera in a phone for optical zoom is a gimmick
How Bokeh works?