Camera operation - Nokia 8 Questions & Answers

I found this question, and tryed too. Same happens on my Nokia 8.
"Bit of an odd question but when I use colour or mono camera on the app and cover the camera, it goes dark obviously. But on twin mode when I cover the monochrome camera, it takes a perfectly normal picture as if its still shooting in colour camera only. Is it really using both cameras in duel camera mode or is it something I don't know about?"
Sent from my TA-1052 using Tapatalk

I'd guess it's only using image from monochrome camera when algorithm decides effect would be worth it. So when you cover it, it decides that using color camera alone will give better effect.

Related

[Q] HTC1 Camera - Image Stabilization Question

In the Anandtech review of the HTC One, the author discusses the Optical Image Stabilization feature of the camera, describing it this way:
The One also has OIS which can accommodate +/- 1 degree of deviation and has its own dedicated gyroscope which polls at 2 kHz for making corrections. You can actually see OIS working if you look at the module while the camera preview is going and slightly deviate the phone — it’s quite surreal to watch the system make a reverse accommodation to the angle you’ve deviated the phone.
Click to expand...
Click to collapse
This technology just blows me away. To think that we've been able to pack not only a tiny camera, but gyroscopes and mechanical stabilizers in a lens amazes me. I'm wondering if there's any way to demonstrate to someone how it works, or to at least show the effects of it in the viewfinder - say for example, is it that horizontal line when shooting a panorama shot?
Just wondering if there's any practical way to show someone not familiar with the phone or camera how absolutely cool it is.
Bump.
Sent from my HTC One using Tapatalk 2
I't's pretty hard showing off that feature. The most obvious way of showing it is by placing it with another phone in a sturdy stand and moving it slowly. You'll notice the HTC One video minimizes the shakes a little compared to the other one.
Riyal said:
I't's pretty hard showing off that feature. The most obvious way of showing it is by placing it with another phone in a sturdy stand and moving it slowly. You'll notice the HTC One video minimizes the shakes a little compared to the other one.
Click to expand...
Click to collapse
Finally tried this experiment with my old Inspire and my new One side-by-side holding both phones and focusing on the same object . It really does work, and it really does make a difference. Thanks for the suggestion.
Sent from my HTC One using Tapatalk 2

HTC One Camera - very blurry

I just purchased the HTC one for sprint a few days ago.
I have been taking mostly indoor vidoes/pictures under normal lighting conditions.
And all the pics are awful. They are blurry , not focused properly and the photo just looks horrible - like one taken from a bad camera phone.
I have tried messing with the settings...tried HDR mode...zoe mode. Still...pictures come out very grainy or just plain out of focus.
Is this a defect or what? Im hearing all these great things about the camera , but the pics don't come close to what my 4 year old HTC Evo takes.
Should I try to exchange it out for another at sprint store ? anyone else having this issue?
Is the lens dirty or covered by anything? Try tapping the screen to focus. Do you have a sample to show us?
Sent from my HTCONE using xda app-developers app
mrkool444 said:
I just purchased the HTC one for sprint a few days ago.
I have been taking mostly indoor vidoes/pictures under normal lighting conditions.
And all the pics are awful. They are blurry , not focused properly and the photo just looks horrible - like one taken from a bad camera phone.
I have tried messing with the settings...tried HDR mode...zoe mode. Still...pictures come out very grainy or just plain out of focus.
Is this a defect or what? Im hearing all these great things about the camera , but the pics don't come close to what my 4 year old HTC Evo takes.
Should I try to exchange it out for another at sprint store ? anyone else having this issue?
Click to expand...
Click to collapse
The photos are grainy because of the ultra pixel system that they used in this camera. It is sort of a trade off really....in order to get those nice low light shots they had to devise a camera with larger light sensitive cells. It is like in the old film days when you used 1600 speed film for low light conditions but ended up with pictures that were super grainy. Same concept but now in digital form.
I know what the OP is talking about, this is a different issue than just having grainy pictures. Mine cannot seem to focus on anything more than 10 ft away. I'm attaching an example from a graduation last night. The focus was so bad that I will not using any of these pictures for anything.
And yes I tapped on the screen multiple times to get it to focus, this is what came out. I can replicate this basically anytime when taking pictures of anything kind of far away. It freaking sucks.
This is not due to not focusing or pics being slightly grainy
Im saying the pics are awful.. Way out of focus and look distorted, phone is only 3 days old so it's not a dirty lens
Taking this back to sprint today... Will update you guys on what they do for me..
I've had time where the front camera is blurry from smudges on the lens taking it out of my pocket. Wiping off the lens helps. It happens pretty frequently actually.
Sent from my HTCONE using xda app-developers app
Sounds like bad hardware to me, I would have taken it back to.
Sim-X said:
Sounds like bad hardware to me, I would have taken it back to.
Click to expand...
Click to collapse
I went to the sprint store yesterday and they exchanged it out for a new HTC one.
Same problem with the new one. Blurry images, out of focus objects, when you zoom in the images, they are too grainy/fuzzy.
I'm now beginning to understand that it's not a hardware problem, but just a bad camera on the HTC One.
I have been comparing pictures over the past 3 days from HTC One vs my 3 year old Galaxy S2 phone.
The galaxy s2 phone pictures are significantly more clear, crisp and more detailed.
The HTC One pictures are routinely blurry, noisy and just plain out of focus in certain areas.
The HTC one pictures look good when you look at them zoomed out...but when you pinch n zoom in, you begin to see fuzzy edges and blurred focus. This does not happen on my S2.
The S2 images are 3.5 MB with resolution of 3264x2448
The HTC one images are 2.17 MB with resolution of 2688x1520
So, clearly, the galaxy s2 pics are going to look better.
I love everything about the HTC one , but the camera is a total disappointment. I wish it was a hardware defect so I could swap it for a better unit, but I suppose that's just how it is
I am on badseed rom and I opened zip and replaced the camera.apk with the new one found in international roms and wiped and reflashed and my camera is 1000% better . The one I used is from cleanrom 2.0
Mine has been the same way and I use it a lot for work. I will try the different apk.
Is this an effect of running custom roms? Isn't all the after picture stuff done via image sense?
HTC ONE! Everything your phone isn't.
thronnos said:
Is this an effect of running custom roms? Isn't all the after picture stuff done via image sense?
HTC ONE! Everything your phone isn't.
Click to expand...
Click to collapse
Not sure all I know is ever since I've had the phone (I've used stock, Viper, and badseed) it's been that way.
I replaced the camera apk and reflashed my rom and the issue is still there.
It's like it only focuses in the center of the picture... everything around the center is blurry even if i touch the screen outside the center.
Here are some examples:
I'm using the xda app which doesn't handle pics very well, so it's hard to tell for sure but it sounds like you're complain about the depth of field - area of importance in focus, background/foreground blurry.
Photography 101:
The HTC one uses a camera with a f/2.0 or so lens. This means it can allow lots of light in. The lower this number is, the more light passes through the lens. There's a catch, this extra light isn't as sharp. Parts of the image fall out of focus. This is called shallow depth of field. The lower the f-stop (f number), the shallower the depth of field. There's a distance from the lens that's the sweet spot in focus, adjusting focus repositions where the sweet spot is, but the sweet spot is smaller on lower f-stops
Sent from my HTCONE using xda app-developers app
gk1984 said:
I'm using the xda app which doesn't handle pics very well, so it's hard to tell for sure but it sounds like you're complain about the depth of field - area of importance in focus, background/foreground blurry.
Photography 101:
The HTC one uses a camera with a f/2.0 or so lens. This means it can allow lots of light in. The lower this number is, the more light passes through the lens. There's a catch, this extra light isn't as sharp. Parts of the image fall out of focus. This is called shallow depth of field. The lower the f-stop (f number), the shallower the depth of field. There's a distance from the lens that's the sweet spot in focus, adjusting focus repositions where the sweet spot is, but the sweet spot is smaller on lower f-stops
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse
Still don't really understand the issue... Never had these problems with my GS3. And it really has nothing to do with background/foreground... Everything that is the same distance form the lens that is outside the center is blurry as %^#@.
I took another look outside the app at the pics. I think it's a shallow depth of field. Our camera is capable of a much lower f-stop than most others. The average consumer camera it around 3.5 f-stop for example. Until the HTC amaze, android phones never had an f-stop this low. I'm not sure what the galaxy's used though.
The pic of the signs tells me a lot that this is the case. Most people like this effect as it's artsy. The sign on the left is in focus and closer to the camera, the sign to the right is further away and not in focus. This is what depth of field is. Shallow depth of field is a smaller area in focus.
Now, I don't want to make excuses for HTC. The f-stop isn't a fixed number. It's supposed to be adjustable in cameras, we just may not have the option to. Try using landscape mode. That should keep everything in focus. This depth of field shouldn't be for every pic
Sent from my HTCONE using xda app-developers app
tkoreaper said:
I replaced the camera apk and reflashed my rom and the issue is still there.
Click to expand...
Click to collapse
If you reflashed the rom after installing the new camera apk then the old camera app will still be there since you relfashed the rom. If anything flash the newer camera apk after not before.
themuffinman said:
If you reflashed the rom after installing the new camera apk then the old camera app will still be there since you relfashed the rom. If anything flash the newer camera apk after not before.
Click to expand...
Click to collapse
I replaced the APK inside the ROM then flashed it. Simply replacing the apk from within android didn't work and it wouldn't let me just install it either..
tkoreaper said:
I replaced the APK inside the ROM then flashed it. Simply replacing the apk from within android didn't work and it wouldn't let me just install it either..
Click to expand...
Click to collapse
Oh ok, well I used root explorer to replace the apk and it worked just fine. Anyway I do see a difference with the newer apk.

Does anyone else feel kinda lied to? (Camera)

I don't know how it took me this long to realize this but when just zooming in a normal camera application the cameras never switches from the wide angle to the telephoto lens.... Obviously it happens when you use live focus mode but it never switches if you're not in that mode. So whenever i tap on that "x2" button its just giving me another digital zoom, just as with any of the previous phones before the Note 8. I guess its not a huge deal but I feel lied to. You can check for yourself, just cover the telephoto lens (the one on the left) and zoom in. I'm not sure if this is the case with the iPhones as well but i just thought this was a little weird. They bragged about actual 2x optical zoom but you can only use it when its this specialized portrait mode where focusing can be a pain...
I feel like Samsung just wanted to copy the iPhone feel with that zoom button.
Had anyone else noticed this? I feel like I'm the first one to mention this.
Are you already covering the lense before you Zoom? If so, that's why. The camera knows that it's covered, so it uses Digital on the Main. Also, the lighting condition needs to be optimal for the Telephoto lense. At least that what I heard around the Internet. :silly:
dilness said:
I don't know how it took me this long to realize this but when just zooming in a normal camera application the cameras never switches from the wide angle to the telephoto lens.... Obviously it happens when you use live focus mode but it never switches if you're not in that mode. So whenever i tap on that "x2" button its just giving me another digital zoom, just as with any of the previous phones before the Note 8. I guess its not a huge deal but I feel lied to. You can check for yourself, just cover the telephoto lens (the one on the left) and zoom in. I'm not sure if this is the case with the iPhones as well but i just thought this was a little weird. They bragged about actual 2x optical zoom but you can only use it when its this specialized portrait mode where focusing can be a pain...
I feel like Samsung just wanted to copy the iPhone feel with that zoom button.
Had anyone else noticed this? I feel like I'm the first one to mention this.
Click to expand...
Click to collapse
Open the camera.
Cover each camera until it picture doesn't appear.
Switch to 2X then do the same.
You will see it uses the two different camera. If you have it covered BEFORE the switch the software seems to adjust because the lens is covered like above mentions.
Sent from my SM-N950U using Tapatalk
https://www.technobuffalo.com/2016/09/23/iphone-7-plus-2x-optical-zoom-explained/
guess the cheezy zoom is a copy alright. same 'issues' or limitations as the iphone7s. the reviews of the iPhone 8's camera are not giving any real details apart that it's very good which is not helpfull and are prolly chit reviews payed by the company since their whole line of new old phones are a flop.
Tidbits said:
Open the camera.
Cover each camera until it picture doesn't appear.
Switch to 2X then do the same.
You will see it uses the two different camera. If you have it covered BEFORE the switch the software seems to adjust because the lens is covered like above mentions.
Click to expand...
Click to collapse
I don't understand.
Sent from my Galaxy Note8 using XDA Labs
xbmoyx said:
I don't understand.
Sent from my Galaxy Note8 using XDA Labs
Click to expand...
Click to collapse
It works like intended but you can't block the lens before you switch. The software will see it covered and adjust use the same lens as before and digitally zoom.
Sent from my SM-N950U using Tapatalk
Tidbits said:
It works like intended but you can't block the lens before you switch. The software will see it covered and adjust use the same lens as before and digitally zoom.
Click to expand...
Click to collapse
I saw many YouTube videos where people would say this or that camera is for zoom, so I would hold my finger over both and hit the 2x and it's always the same camera and seems the only reason for the 2nd camera is for the Live Focus.
Sent from my Galaxy Note8 using XDA Labs
xbmoyx said:
I saw many YouTube videos where people would say this or that camera is for zoom, so I would hold my finger over both and hit the 2x and it's always the same camera and seems the only reason for the 2nd camera is for the Live Focus.
Sent from my Galaxy Note8 using XDA Labs
Click to expand...
Click to collapse
They are covering BEFORE they switch. The camera sees the lens is blocked and uses the same lens because the other is blocked.
Try it yourself
Camera 1 - inside lens (next to flash)
Camera 2 - Outside lens
Open camera
Cover Camera 1
Uncover camera 1
Switch to Camera 2
Cover camera 1
Then cover camera 2
You will see it works how it should. The software is smart enough if the camera two is not available it will digitally zoom using the first.
As far as covering camera 1 and it not switching to Camera 2 as camera 2 was never intended to be the main shooter so the software doesn't compensate.
Sent from my SM-N950U using Tapatalk
---------- Post added at 03:05 PM ---------- Previous post was at 02:58 PM ----------
Tidbits said:
They are covering BEFORE they switch. The camera sees the lens is blocked and uses the same lens because the other is blocked.
Try it yourself
Camera 1 - inside lens (next to flash)
Camera 2 - Outside lens
Open camera
Cover Camera 1
Uncover camera 1
Switch to Camera 2
Cover camera 1
Then cover camera 2
You will see it works how it should. The software is smart enough if the camera two is not available it will digitally zoom using the first.
As far as covering camera 1 and it not switching to Camera 2 as camera 2 was never intended to be the main shooter so the software doesn't compensate.
Sent from my SM-N950U using Tapatalk
Click to expand...
Click to collapse
I will try and post a video later. Of how I noticed how it worked. You can't cover camera 2 before you switch to 2X or else it will use camera 1 and digitally zoom it to compensate.
Sent from my SM-N950U using Tapatalk
Tidbits said:
Camera 1 - inside lens (next to flash)
Camera 2 - Outside lens
Open camera
Cover Camera 1
Uncover camera 1
Switch to Camera 2
Cover camera 1
Then cover camera 2
Click to expand...
Click to collapse
When you say Switch to camera 2, you mean move your finger from blocking camera 1 to 2? It seems like no matter what I do the camera will only do 2x zoom in the inside camera near the flash? I'm lost.
Sent from my Galaxy Note8 using XDA Labs
It will also not switch to 2nd camera in low light, presumably because zoom lens is 2.7 and main cam is 1.7, letting in more than double the amount of light. Personally I hate automation (I can make better choices that suit me better) and would prefer full manual lens choice much better, but I see where is Samsung coming from: most user don't know much about photography, just care about end results, so lets camera decide which is best for given condition. We could probably fix this, if we had root.
xbmoyx said:
When you say Switch to camera 2, you mean move your finger from blocking camera 1 to 2? It seems like no matter what I do the camera will only do 2x zoom in the inside camera near the flash? I'm lost.
Sent from my Galaxy Note8 using XDA Labs
Click to expand...
Click to collapse
When you press 2X it will switch to Camera 2. If you do it enough times sometimes you can see the software transfer too slow and you can see yourself cover camera 2 then all of a sudden you will see it switch to Camera 1 and be digitally zoomed.
Sent from my SM-N950U using Tapatalk
---------- Post added at 03:39 PM ---------- Previous post was at 03:28 PM ----------
Tidbits said:
When you press 2X it will switch to Camera 2. If you do it enough times sometimes you can see the software transfer too slow and you can see yourself cover camera 2 then all of a sudden you will see it switch to Camera 1 and be digitally zoomed.
Sent from my SM-N950U using Tapatalk
Click to expand...
Click to collapse
Try doing this cover camera 2 the one farthest from the heart rate sensor.
Then tap the 2X a few times. Do it enough times it'll bug out and you will see not switch like it should when camera two is blocked. I will have a video up shortly.
Sent from my SM-N950U using Tapatalk
dilness said:
I don't know how it took me this long to realize this but when just zooming in a normal camera application the cameras never switches from the wide angle to the telephoto lens.... Obviously it happens when you use live focus mode but it never switches if you're not in that mode. So whenever i tap on that "x2" button its just giving me another digital zoom, just as with any of the previous phones before the Note 8. I guess its not a huge deal but I feel lied to. You can check for yourself, just cover the telephoto lens (the one on the left) and zoom in. I'm not sure if this is the case with the iPhones as well but i just thought this was a little weird. They bragged about actual 2x optical zoom but you can only use it when its this specialized portrait mode where focusing can be a pain...
I feel like Samsung just wanted to copy the iPhone feel with that zoom button.
Had anyone else noticed this? I feel like I'm the first one to mention this.
Click to expand...
Click to collapse
I did check for myself. Opened the camera app, pointed the camera at a well-lit scene (both lenses uncovered). Tapped the x2 icon and covered the main/wide lens and the viewfinder still shows the uncovered view.
I don't appreciate being lied to by the OP.
harveydent said:
I don't appreciate being lied to by the OP.
Click to expand...
Click to collapse
Don't be so hard on OP. Maybe he didn't know better? He's just trying to help. No need to go assuming he's a liar.
Anyways I did the experiment too and the 2nd camera is definitely working in 2x zoom mode. I can even see the switch happening back and forth if I cover/uncover the camera.
Yeah coming from note 5... It's underwhelming to say the least.
It's weird I'm with T-Mobile... And a switch isn't happening for me except with live focus. With all zooms on regular mode it's always the camera closest to the heart sensor that displays the image ... And I've switched uncovered in a well lit area and even closed the app and tried. I can do anything to make it use the telephoto lens except live focus.
nique0201 said:
It's weird I'm with T-Mobile... And a switch isn't happening for me except with live focus. With all zooms on regular mode it's always the camera closest to the heart sensor that displays the image ... And I've switched uncovered in a well lit area and even closed the app and tried. I can do anything to make it use the telephoto lens except live focus.
Click to expand...
Click to collapse
Try cover the second lens(outer) and then switch between 1X and 2X.
Sent from my SM-N950U using Tapatalk
Tidbits said:
Try cover the second lens(outer) and then switch between 1X and 2X.
Click to expand...
Click to collapse
I did... But what is that supposed to achieve the outer lens is already the one not displaying anything.
nique0201 said:
I did... But what is that supposed to achieve the outer lens is already the one not displaying anything.
Click to expand...
Click to collapse
If it wasn't being use or some "tricks" then why does it not display a thing when it is covered.
Sent from my SM-N950U using Tapatalk
Ok I got it to switch but I basically had to aim the camera at a light bulb to get it to register. I'm in a what I consider well lit room. And it wouldn't make the switch. There must have to be a crap ton of light to trigger it... Or maybe it just has to be white light.
---------- Post added at 07:09 AM ---------- Previous post was at 07:07 AM ----------
Tidbits said:
If it wasn't being use or some "tricks" then why does it not display a thing when it is covered.
Click to expand...
Click to collapse
What I meant by not displaying (which I now see where your confusion was) was that the inner camera was the one supplying the image on both 1x and 2x.. the outer wasn't even turning on at all to display an image (obstructed or otherwise).
nique0201 said:
Ok I got it to switch but I basically had to aim the camera at a light bulb to get it to register. I'm in a what I consider well lit room. And it wouldn't make the switch. There must have to be a crap ton of light to trigger it... Or maybe it just has to be white light.
---------- Post added at 07:09 AM ---------- Previous post was at 07:07 AM ----------
What I meant by not displaying (which I now see where your confusion was) was that the inner camera was the one supplying the image on both 1x and 2x.. the outer wasn't even turning on at all to display an image (obstructed or otherwise).
Click to expand...
Click to collapse
For me if I cover the outer it and I hit 2X I see nothing. I go back to 1X it switches. If I cover it with my fingers from time to time I can move faster than the software and you can see it switch from outer to inner digital zoom. Right now I don't have another phone or camera where I can record it. I hoped I could go home early but looks like I will pull a double.
Sent from my SM-N950U using Tapatalk

Really two cameras ?!

Hello guys, I'm really disappointed and I need your explanations please !
I bought my Galaxy Note 9 (960F variant) from an official Samsung store so I'm sure I'm having a genuine one
As you know, there are two cameras in the rear. I thought that the main one is in the middle, and the 2X optical zoom powered is the one at the left.
Well, yesterday I was playing with my phone, and I masked the camera on the left with a paper. So I thought that I can take pictures in normal mode with the camera on the middle, but the 2X option should give me a blank picture only because of the mask. But no ! Both modes (1x and 2x) are using the same middle camera !
It's normal ?! So what is the purpose of the left sided camera ? Is the 2X really an optical zoom or just a software one ?!
Please do the test and answer me !
Maybe this explains is it
https://www.trustedreviews.com/reviews/samsung-galaxy-note-9-camera
My side camera works only on live focus. Everything else I tested works on the center only. I have a snapdragon, the same setup as my wife's Note 8 too. It's the way they are designed.
kaalalto said:
Hello guys, I'm really disappointed and I need your explanations please !
I bought my Galaxy Note 9 (960F variant) from an official Samsung store so I'm sure I'm having a genuine one
As you know, there are two cameras in the rear. I thought that the main one is in the middle, and the 2X optical zoom powered is the one at the left.
Well, yesterday I was playing with my phone, and I masked the camera on the left with a paper. So I thought that I can take pictures in normal mode with the camera on the middle, but the 2X option should give me a blank picture only because of the mask. But no ! Both modes (1x and 2x) are using the same middle camera !
It's normal ?! So what is the purpose of the left sided camera ? Is the 2X really an optical zoom or just a software one ?!
Please do the test and answer me !
Click to expand...
Click to collapse
It's the same thing with the Note8. It all depends on the lighting and if anything blocking the other camera. It works by design. So when you hit 2x it seems it's blocked and gives you 2x digital zoom instead.
So it's truly an optical zoom ? I ask because if it's "just" a software one, I won't never use it to preserve picture quality !
kaalalto said:
So it's truly an optical zoom ? I ask because if it's "just" a software one, I won't never use it to preserve picture quality !
Click to expand...
Click to collapse
yep, AFAIK, it is true optical zoom. The camera just changes back to main camera if something is blocking the secondary one.
Um I try to not cover it ,but it still using the main one
JalenHo said:
Um I try to not cover it ,but it still using the main one
Click to expand...
Click to collapse
Same here !
I hope I didn't started a "cameragate" scandal !
There are no official specifications from Samsung explaining the purpose of each camera ?!
It depends on the lighting
Try and go outside, on a sunny and bright day, point at the clouds or something, and zoom
Then cover the center camera, it should be using the 2x lens (can confirm with my SM-N960F)
kaalalto said:
Same here !
I hope I didn't started a "cameragate" scandal !
There are no official specifications from Samsung explaining the purpose of each camera ?!
Click to expand...
Click to collapse
You didn't, it's working properly. You are just confused. Cover the middle one and see. Take multiple pics @ 1x and then at @ 2x on both cameras with and without covering. Covering the camera just out it into a different mode so as to not take bad pics by default. The difference is clear of you understand the 2 technologies and have any eye for photography. It's working completely correctly and very nicely.
Yeah like the others stated, it's not supposed to work completely independently and take pictures even with no light to the sensor, it's supposed to be smarter than that, if it's working correctly.
Sent from my SM-N960U using Tapatalk
Hey all, I worked this out.
In a low light situation the wide camera is used for the 2X zoom (So technically Digital zoom)
In a situation with more light, it switches to the dedicated 2X camera.
You can test this by putting your finger over the camera and showing it a bight light, then dark. I'm guessing this is because the main (Wide) camera is better at low light.
willhemmens said:
Hey all, I worked this out.
In a low light situation the wide camera is used for the 2X zoom (So technically optical zoom)
In a situation with more light, it switches to the dedicated 2X camera.
You can test this by putting your finger over the camera and showing it a bight light, then dark. I'm guessing this is because the main (Wide) camera is better at low light.
Click to expand...
Click to collapse
Yes, although you mean digital zoom for low light situations.
My issue is that sometimes the camera still decides to use digital zoom in good lighting instead of the second camera because it decides that a slightly overcast day or sunset is "low light" or the subject is too close. I'm guessing the second camera can't focus as closely and its optics aren't quite as good as the main camera. In more inconsistent conditions I can sometimes see the viewfinder image jump between the two lenses and usually settle for the digital zoom. Doesn't seem to be used at all in Pro Mode. (I also wish Pro Mode had burst capture)
If you look at the EXIF data you can see which lens is used for your photo. The wide lens is 4.3mm and the telephoto lens is 6mm. The mushroom images were taken 20 seconds apart with "2X" in Auto mode; in the second shot the camera decided to use the wide lens with crop, and the EXIF shows 4.3mm compared to the first image. The crop version just looks like an upscale and has more aggressive nose reduction and edge enhancement; it's not too bad compared to some phone cameras which add too much sharpening or use a simpler interpolation filter. The third image of the grasshopper/locust was in very bright daylight, but the camera decided to use the main camera with 2X crop.
https://imgur.com/a/MYpRogb
With video it tends to be even more obvious which camera is used because if you take 4K in low light with 2X enabled it looks more noise-reduced and interpolated.
I get that Samsung tried to make its camera app "smart" but the 2x button implies that it's using the 2x lens and doing otherwise is deceiving.
If I knew that a zoomed photo would use digital zoom then I'd rather take the full shot and crop later so that I can have more flexibility in framing.
While this is unlikely to ever happen, here's how I feel this should be fixed:
1) Add an option to force switch cameras in all conditions (perhaps in pro mode only?)
2) Hide the 2x button unless the telephoto camera will actually be used. Still allow pinch to digital zoom.
I've looked around but couldn't find any 3rd party camera apps which are able to use the zoom lens. Does anyone know of one?
I've tried a few shot it seems if the lighting isn't good enough it will stick with the primary camera., in good lighting it does work though.
Just do two shots with each and compare the level of detail, it should be obvious.

Is the secondary front facing camera real?

So the phone has 2 front facing cameras. The 24 megapixel camera is working fine. But is the 2 megapixel one working for you? I tried covering the camera and there is no difference in portrait blur. It looks like it's just some software blur instead of a real one.
The secound one i used for the bokeh effect.
I know. I have enabled bokeh and covered the second camera but the background is still blurred. Also it does a really bad job identifying what's in the background and what's in the front.
Try with covered lens on Aperture mode. You will see the difference.
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There is no aperture mode for the front facing camera.
ShareACoke said:
There is no aperture mode for the front facing camera.
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My bad. Didn't read "front camera"... Yep on front one no difference if you cover the second sensor.
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Thanks for your answer. Do you know any way to check whether it is real or not?
That's very interesting.. i tried every mode, that i could, but as i can see, i don't really know, how to test it out :/
I just got a Mate 20 Lite. Funny if it is a fake camera.
Both secondary "cameras" are "depth sensors".
Anybody with Pie who got the depth sensor working?
Second cameras are working but they are working in conjunction with software. Software utilizes the additional information that is collected from the depth cameras but it does not solely rely on that information. And if you cover it you may not be able to see any difference because thanks to machine learning the software is really good at identifying subjects from the background. There is never a real bokeh on these smartphones because of the tiny lenses and sensors that are being used in them. So you are always in need of some software trickery to achieve good blurr. Another option is to get really close to your subjects but in many cases that is not useful.
Both the secondary cameras, front or rear, are real. But they are only used to the boken effect most of the time.
They are used to capture the depth of a cenary, imrpoving the effect in the final version.
You probably wont notice a difference if cover the secondary sensor, but in some cases can have impact.
Most of the work isn't done by that sensor, but by the câmera software, thats why you don't see any real difference in the images.
That secondary câmera can also be used to improve the quality of some photos, for instance, in the night.
So, is a real câmera? Yes, it is.
But like in any other dual câmera smartphone, is used for some situations, not all the time.

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