Question Photo taking tips/advice - Samsung Galaxy S21 Ultra

Great to see some more positive feedback on the camera since the updates!
What resolution/mode are people finding best for general point and shoot? Auto or 3:4 (if so, with or without 108MP)?
Also, hoping for a bit of advice on the best ratio and mode to use in the following scenarios:
- Under artificial light indoors
- In low light
- Capturing movement without it being one big blurry mess (I tried taking a few of my dogs whilst they were running in the park and couldn't get any focus or features at all)

following

Tmel14 said:
Great to see some more positive feedback on the camera since the updates!
What resolution/mode are people finding best for general point and shoot? Auto or 3:4 (if so, with or without 108MP)?
Also, hoping for a bit of advice on the best ratio and mode to use in the following scenarios:
- Under artificial light indoors
- In low light
- Capturing movement without it being one big blurry mess (I tried taking a few of my dogs whilst they were running in the park and couldn't get any focus or features at all)
Click to expand...
Click to collapse
Any experts out there got any tips?

Tmel14 said:
Any experts out there got any tips?
Click to expand...
Click to collapse
https://www.reddit.com/r/S21Ultra/comments/lr4t8j

Tmel14 said:
- Capturing movement without it being one big blurry mess (I tried taking a few of my dogs whilst they were running in the park and couldn't get any focus or features at all)
Click to expand...
Click to collapse
To capture movement you either need to push up the shutter speed to a speed of 1/300-500 in Pro mode (so only use the main camera no zoom), or 'pan'/move the camera to track the subject whilst its moving to with the zoom lens. The later is almost impossible to do on any phone, and AF on the S21 U I don't think is good enough for it, I tried it last weekend and I got zero usable shots out of about 10 attempts even with burst mode.
The other options is a 'still' capture using slow mo video or 4K 60 FPS.
I don't think its impossible to capture good motion with the main sensor, but you need to play with the setting, and use Manual Focus.
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Gzoom82 said:
To capture movement you either need to push up the shutter speed to a speed of 1/300-500 in Pro mode (so only use the main camera no zoom), or 'pan'/move the camera to track the subject whilst its moving to with the zoom lens. The later is almost impossible to do on any phone, and AF on the S21 U I don't think is good enough for it, I tried it last weekend and I got zero usable shots out of about 10 attempts even with burst mode.
The other options is a 'still' capture using slow mo video or 4K 60 FPS.
I don't think its impossible to capture good motion with the main sensor, but you need to play with the setting, and use Manual Focus.
Click to expand...
Click to collapse
Thank you for the tips, I will give that a go. Is the tap photo you posted an example of the shutter speed tip or slow mo/4K video tip?
Having had an opportunity to play around with the camera more, my main difficulty (particularly compared to my partner's iPhone) is definitely capturing the dogs while they're moving. I have experimented with burst shots and also motion photos to allow me to try and pick the best shot afterwards but it's really not ideal having to sift through a load of shots to try and find the most usable one.
I find that if I just point and shoot, the photo will often just be a blur with no distinguishable features - whereas the iPhone seems to capture the dogs in motion pretty well. By motion, I don't just mean in full flight either, at times my dog will be lying/sitting and just one head movement seems to completely nerf the photo...

Smartphones are crappy cam platforms compared to a pro cam system that weighs a couple pounds. A pro cam's handholds are also much better.
More mass means more inertia. The heavy pro cams are very easy to shoot with in part because of the extra weight.
So bracing the phone or the hand/arm/shoulder/your body holding the phone on any solid object at the right height helps to keep keep the framing lined up and avoid cam shake.
Even with a pro cam you brace it when possible otherwise you take a wider staggered foot plant, keep your elbows down/inward. You watch your breathing just like you would when shooting a rifle. If kneeling you can rest your elbow or arm on your leg.
This is a learned practice that over time becomes second nature the same as composing-framing/squaring up a shot.
You need to do this quickly/accurately to grab most action shot keepers.
That's part of the issue but far from all.

Tmel14 said:
Thank you for the tips, I will give that a go. Is the tap photo you posted an example of the shutter speed tip or slow mo/4K video tip?
Click to expand...
Click to collapse
Yes upping shutter speed -1/2000, and Manual focus.
The Autofocus on the S21U back focuses at times consistently- so will focus behind what you want. Am not sure why, this scene below I just couldn't get the AF to focus on the purple flower, it didn't matter where I tapped on the screen it wouldn't do it.
Manual focus nailed it however. But you really cannot use Manual focus on a moving subject with the phone, the ergonomics just aren't there, so your best bet is to go into Pro mode and get the shutter speed up to 1/2000 range.
You will also need to push the ISO up to 200-400 to ensure the picture isn't too dark, so realistically you need to be outside with good sunlight to get a decent shot.

Use auto tracking focus for moving subjects, remember to turn it off afterwards.

Related

camera app that really works - request

Hello to everybody,
Before alot of search i`ll try to ask it to you.
Ìs it possible that there isn`t any apps that let you use all potentility of the g1 camera?
I`ve seen that in hero rom(but now i have cym 4.2.5) the htc camera let you set iso, contrast, night mode, and a lot of features, i`ve buy all camera apps in market but any of these let you set these parameter.
I would pay for an app that let me use my camera in all its features.
Any suggestions?
FXCamera is free and i like it check it out
yes, i've already try it, but it's not what i want
Our product Camera ZOOM FX offers a very high degree of customization of the G1 camera's abilities. A Droid version is expected to be available in the next 10 days. Camera ZOOM FX is available on the Android Market for £1.29 or on the SlideME market.
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It features the following features :
- 40 photo fx! (pencil, fisheye, filmreel, etc.)
- circular zoom wheel (6x zoom)
- upscale zoomed images
- tap screen to snap shot
- timer + sound effect
- auto focus on / off
- burst mode up to 16 shots
- photo booth = quad camera!
- stable shot including stability meter
- sound activate
- props, borders and famous ‘buddies’ in your pictures
- customizable grid overlays
- whitebalance
- nightshot
- geotag
- send, share
- 1-click upload facebook, twitter, myspace
- silent mode
- antibanding (for TV / computer monitors)
- auto save option
- digi composites
More information is available on our website :
http://www.androidslide.com/camerazoom
We continue to update the product so feature requests are always welcome.
Snap Photo Pro?
yes, i already buy it, but this not have any contrast regulation, or iso setting or exposure etc.
i would like to have these features but... nobody do that.
The problem i that in low light or in night the photos are so dark.
It's not a DSLR, it's a camera on a phone.
yes i know, but for example in built in camera in hero rom there is the regulation of constrast, saturation and sharpness, and iso, and if i set high iso and low contrast i can take beautiful and clear photos with very low light.
davidesatta said:
yes i know, but for example in built in camera in hero rom there is the regulation of constrast, saturation and sharpness, and iso, and if i set high iso and low contrast i can take beautiful and clear photos with very low light.
Click to expand...
Click to collapse
then you should get a hero phone or run a hero rom. again, this is a phone.
g1 camera
well i notice that no matter what program the g1 has its seems that the camera sux!!! is there any way that this can be fixed???
Try xROM.
It's a full rom, not an app.
But it has the Hero camera in it, and it works pretty good in dark light.
The Market does have some very nice camera apps (especially for a phone camera), but I fully understand the op's request. Sometimes it's not feasible to carry around a camera and a phone. For the candid, spur-of-the-moment shots, that's the benefit of having a camera on the phone. Unfortunately, most of these apps do post-processing of photos. That's not much fun when you take multiple photos. The Hero camera, on the otherhand, let's you set the brightness/contrast/etc BEFORE you take the pics. That's a huge benefit when you're in a restaurant or club and want to grab some low light photos.
xROM is a very nice, stable and fast rom. Although it's a bit older of a rom, it still has most of the functionality of the latest roms and pretty much all the speed as well. I believe it's the most recent rom that also had the Hero camera.
Thats why I'm hoping we get some software improvements once the Sony Ericsson phone comes out. I had the k800i Cybershot Phone before the G1, and that phone rocked. The camera software was amazing. I imagine the hardware will limit it of course, but the image processing right after the sensors output should see great improvements that, I hope because of android, will lead to amazing improvements of the camera apps.
I have Snap Photo Pro, FxCamera, and 3DCamera.
In my opinion...
Snap Photo is best for photos that matter the most (but its still not a real cameraphone so you can't expect much). But the detail is there and postediting can fix most issues. And you get the most megapixels compared to the rest.
FxCamera is awesome if you don't mind small photos. Web quality, but not print. Love this app though, and prefer the auto output of the polaroid mode better than auto Snap Photo settings, and use this one the most for casual shots.
Never had a photo from 3dCamera yet. Hoping its a skill level thing and I can make use of th incredible possibilities. But only possibilities so far.
I repeat, if a hero rom can use these features on a g1/dream phone, this mean that a stand alone software for g1 can do that, i think.
Why nobody has developed these features? What is the problem?
I totally agree! I just wish we had an app. in which nightmode actually worked...
is it just me but is FX camera missing from the market now? I havent been able to find it

[Q] Need help with using camera

Either the camera sucks or I simply do not know which settings I should be using. I just want to take standard quality pictures. When taking a pic of something, I usual have to take 5 or more to get at least 1 ok pic because they are either blurry or dark. I'm taking pictures of things that are usually within 3 to 5 from the phone.
Could someone help by telling me what are the best settings I should be using?
Thanks in advance for your help.
I usually leave it in auto, and depending on lighting I turn on HDR. Those two should give you great picyures 99% of the time.
Sent from my SAMSUNG-SM-G900A using XDA Premium 4 mobile app
chrispyutec said:
Either the camera sucks or I simply do not know which settings I should be using. I just want to take standard quality pictures. When taking a pic of something, I usual have to take 5 or more to get at least 1 ok pic because they are either blurry or dark. I'm taking pictures of things that are usually within 3 to 5 from the phone.
Could someone help by telling me what are the best settings I should be using?
Thanks in advance for your help.
Click to expand...
Click to collapse
Sounds like a movement issue
What I use for most of my pictures is a Tripod and the Istabilizer, and well as setting the camera to timer mode ( usually 3 seconds is ok)
If you don't have those items try this
open the camera app
set the S5 on a table against something to hold it up
in the gear icon click on
Timer pick 5 seconds
(you don't need picture stabilization if the camera is going to be completely still and in timer mode)
set flash to auto
face detection off
tap to take pics off ( because you are in timer mode so you will tap the SCREEN to focus not take the picture)
you can leave hdr on this wont matter for a test
guide lines this is up to you but i put them on
click back on the gear icon
now pick a part on the camera viewfinder that you want to focus on and touch the screen
the circle will turn green and a small chirp will be heard letting you know it is now in focus (it has to turn green for focus lock)
now lightly without moving the camera tap the camera icon
OR with the STOCK Samsung galaxy S5 earphones connected just hit the volume up button, Yes you can take a picture with the headphones ( stock ones not aftermarket ones)
it will count down 5 4 3 2 1 then it will take the picture
This picture should be sharp and clear if it was stable on a table or desk or something else, what we tried to do here is eliminate all movement to the device while taking a picture.
If they are still not sharp and clean I don't know what to tell you.
I have had great pictures from my S5
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cerobles1 said:
I usually leave it in auto, and depending on lighting I turn on HDR. Those two should give you great picyures 99% of the time.
Sent from my SAMSUNG-SM-G900A using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I have tried that too and it always seem to be out of focus or something. Kinda starting to think bad camera maybe!?
davew41 said:
Sounds like a movement issue
What I use for most of my pictures is a Tripod and the Istabilizer, and well as setting the camera to timer mode ( usually 3 seconds is ok)
If you don't have those items try this
open the camera app
set the S5 on a table against something to hold it up
in the gear icon click on
Timer pick 5 seconds
(you don't need picture stabilization if the camera is going to be completely still and in timer mode)
set flash to auto
face detection off
tap to take pics off ( because you are in timer mode so you will tap the SCREEN to focus not take the picture)
you can leave hdr on this wont matter for a test
guide lines this is up to you but i put them on
click back on the gear icon
now pick a part on the camera viewfinder that you want to focus on and touch the screen
the circle will turn green and a small chirp will be heard letting you know it is now in focus (it has to turn green for focus lock)
now lightly without moving the camera tap the camera icon
OR with the STOCK Samsung galaxy S5 earphones connected just hit the volume up button, Yes you can take a picture with the headphones ( stock ones not aftermarket ones)
it will count down 5 4 3 2 1 then it will take the picture
This picture should be sharp and clear if it was stable on a table or desk or something else, what we tried to do here is eliminate all movement to the device while taking a picture.
If they are still not sharp and clean I don't know what to tell you.
I have had great pictures from my S5
Click to expand...
Click to collapse
Wow that is some great direction you have provided and those are some awesome pics. I'm not needing to get that professional lol, but I simply just need to snap a pic here and there and they need to be somewhat ok. My pics are so bad you almost can't even make out whats in the pic.
This picture should be sharp and clear if it was stable on a table or desk or something else, what we tried to do here is eliminate all movement to the device while taking a picture.
chrispyutec said:
I have tried that too and it always seem to be out of focus or something. Kinda starting to think bad camera maybe!?
Click to expand...
Click to collapse
You may be right there, unfortunately. You might try a factory reset. Your issues sound highly irregular.
Sent from my SAMSUNG-SM-G900A using XDA Premium 4 mobile app
So is zoom only available via touchscreen? I used to use volume up and down buttons....
Sent from my SAMSUNG-SM-G900A using XDA Premium 4 mobile app

How to use super slow-mo/slow-mo

I can't seem to get the slow mo to work as i want it to. I read that it should automatically detect movement how, but when i try record something it slow mo's the bit just before the motion, is there something im suppose to be doing that i am not? I point the camera at the object and click record sometime before i think the motion is about to happen. Am i suppose to do something else? it seems like it always slow mo's the bit right after 1 second.
Does it have this UI on your slo mo mode?
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I also have a query on how to use the Slo-Mo, before the latest update .. I could start the slow-mo when I wanted by pressing the shutter .... in this new one, you have the activation window
Yesterday, I was trying to take a slow-mo pic of a helicopter (flying), I framed up the picture, pressed the shutter button, expecting it to start recording slow-mo when it sensed the movement, but it didn't start?
I tried pressing the shutter to start it manually, but that did not work either ...... I then pointed it at my daughter to make sure it was working, and when she moved (quite a bit), it then started recording ... is this new activation window, not very sensitive, and can you still override it?
as the picture orangecroc posted above you should have an auto to the left. press it and snap slow mo when you want.
freddyttt said:
as the picture orangecroc posted above you should have an auto to the left. press it and snap slow mo when you want.
Click to expand...
Click to collapse
Superb, thanks for that ... really had not noticed that auto button
Alternatively, I just use 120fps x4 times slow motion. This gives me 1080p resolution and I don't have to worry about timing the button press to be just right. Granted, it isn't as slow as 960fps but more than slow enough for the intended effect and at much better quality recording.
The auto function is implemented only after the 131 firmware. So if you are in an earlier version than this, you ll have to use it manually.
Sent from my CLT-L29 using Tapatalk
Same Problem
I too had the camera automatically select the slow motion section and choosing wrong. I tried the tips here, but as I shoot martial arts sequences, the timing just does not work. Is there any way to move which part is in slow motion afterwards, by editing. Timing that one slow motion sequence whilst filming longer sequences seems absolutely unrealistic as I currently understand the use of the phone.
On a side note, why didn't they include usage instructions. I have spent an hour trying to google and search on YouTube for videos and articles on how to use the slow motion function, which would seem unnecessary when one has purchased the phone.
nbastedo said:
I too had the camera automatically select the slow motion section and choosing wrong. I tried the tips here, but as I shoot martial arts sequences, the timing just does not work. Is there any way to move which part is in slow motion afterwards, by editing. Timing that one slow motion sequence whilst filming longer sequences seems absolutely unrealistic as I currently understand the use of the phone.
On a side note, why didn't they include usage instructions. I have spent an hour trying to google and search on YouTube for videos and articles on how to use the slow motion function, which would seem unnecessary when one has purchased the phone.
Click to expand...
Click to collapse
Well, if you pick the 120fps 1080p 4x or 8x 720 then after recording you can play the video and when you touch the video again then you will see this bar at the bottom where you can edit the slomotion
subhani said:
Alternatively, I just use 120fps x4 times slow motion. This gives me 1080p resolution and I don't have to worry about timing the button press to be just right. Granted, it isn't as slow as 960fps but more than slow enough for the intended effect and at much better quality recording.
Click to expand...
Click to collapse
Is there a maximum recording time for this? I like the look of the phone and the static camera but I like to take long slow-mo videos - on the iphone 6 you can do 120/240fps seemingly forever, or at least until you run out of memory.
I know the (arguably nominal) 960fps mode on this phone allows for only very short videos, but i'm not after hi-definition ultra slow footage, just 'very' (4x/8x) slow motion for several minutes at a time (like 5 mins of shooting to get 20/40mins slowed video)
user9319062 said:
Is there a maximum recording time for this? I like the look of the phone and the static camera but I like to take long slow-mo videos - on the iphone 6 you can do 120/240fps seemingly forever, or at least until you run out of memory.
I know the (arguably nominal) 960fps mode on this phone allows for only very short videos, but i'm not after hi-definition ultra slow footage, just 'very' (4x/8x) slow motion for several minutes at a time (like 5 mins of shooting to get 20/40mins slowed video)
Click to expand...
Click to collapse
btw apologies for rampaging in to your forum with 0 posts demanding ANSWERS

Manual focus to infinity results in blurry pictures

Hi everyone,
my p30 Pro seems to have a limited manual focus range, in particular when pushing the cursor to infinity.
When I point the phone to something very far away the autofocus works well, the resulting picture is perfectly sharp.
Now if I switch to manual focus and slide the cursor all the way up, I can clearly see a difference ! It seems to be occurring only when using the main 27mm lens.
Here is an example. Left manual focus, right AF-S :
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I just updated my phone to .161, the problem still exists. I am pretty sure it is software-related as the AF works perfectly, but I didn't find anything about it through the internet.
I also tried with another app, 'HD Camera Pro', which allows to manually set the focus and it is still the same.
Any ideas ? Am I the only one ?
If I remember correctly, this "bug" was already present in the P20 Pro's Software last year. The work around was not to drag the slider to the right completely but leave a little wiggle room (like, focus to 95% of infinity). You could try if it still works.
Yep I read something about this, it happened to the Pixel 2 also if I am not mistaken ! Sadly it doesn't work for me, my focus isn't past the limit, it just can't make it to infinity ... and beyond
Could some people please try to reproduce this on their p30 pro ? If I am the only one (which I hope to be), I'll ask for a replacement of my unit ...
Have you checked if its ok if you stop short before hitting infinity?
poulos971 said:
Could some people please try to reproduce this on their p30 pro ? If I am the only one (which I hope to be), I'll ask for a replacement of my unit ...
Click to expand...
Click to collapse
It happens for me too. In manual focus it does not reach all the way to infinity.
nurps said:
Have you checked if its ok if you stop short before hitting infinity?
Click to expand...
Click to collapse
Yes I did ! Here is the test :
The first picture is with Autofocus.
The second one is with Manual Focus, with the cursor all the way up to the maximum.
The third one is theoretically the exact same focus level as AF, as it keeps the setting when you open the Manual Focus Tab. So this one was 2 little graduations before the maximum.
dannejanne said:
It happens for me too. In manual focus it does not reach all the way to infinity.
Click to expand...
Click to collapse
Thank you ! I feel relieved in a way, at least I'm not the only one :laugh: So, I guess it is indeed software related.
Thing is, it happens with other apps I tried (HD Camera Pro, DeepSkyCamera), so I reckon the issue exists at the camdriver level...
Anyone managed to get around this issue? It's really annoying when I'm trying to take multiple pictures of the night sky, I cannot fix the focus. Auto focus keeps changing it between pictures. (I'm using an intervallometer app.).
Is there an official Huawei site to report bugs.
Thanks.
I tested this on both p30 pro and P20 pro with latest 9.1 patch, if you drag the manual focus to the top it lose all focus on both devices . So it's software related.
This is a common "issue" with lenses. AFAIK all DSLR and mirrorless lenses behave this way, no matter the price tag.
kadajawi said:
This is a common "issue" with lenses. AFAIK all DSLR and mirrorless lenses behave this way, no matter the price tag.
Click to expand...
Click to collapse
Can you upload your camera folder with fx explorer from system/odm/camera via copy. Fx explorer link is here. https://play.google.com/store/apps/details?id=nextapp.fx may be some help...
I have this problem too, I thought my phone was damaged! Autofocus gives a clear image but manual doesn't go far enough out. It happens in Filmic Pro too. Kind of disappointing that this bug exists in a phone designed around a cutting edge camera system. And why can't we use wide angle in manual mode? Or disable the EIS?
I had a LG V20 before this and it's stock camera app was soooo much better.
ForestyForest said:
I have this problem too, I thought my phone was damaged! Autofocus gives a clear image but manual doesn't go far enough out. It happens in Filmic Pro too. Kind of disappointing that this bug exists in a phone designed around a cutting edge camera system. And why can't we use wide angle in manual mode? Or disable the EIS?
I had a LG V20 before this and it's stock camera app was soooo much better.
Click to expand...
Click to collapse
On my normal P30 I can use wide angle with Pro mode and manual focus
*Detection* said:
On my normal P30 I can use wide angle with Pro mode and manual focus
Click to expand...
Click to collapse
Yes with photos I can, but in video mode the option disappears.
And if you use wide angle in Filmic Pro it is far wider. They need to give us an option to disable EIS.
ForestyForest said:
Yes with photos I can, but in video mode the option disappears.
And if you use wide angle in Filmic Pro it is far wider. They need to give us an option to disable EIS.
Click to expand...
Click to collapse
There is no Pro mode for video, at least on my P30 anyway, video is it's own mode, fairly basic
Might be something to do with Android 9 though as the Galaxy S9 did have a video pro mode on Android 8, but was removed in Android 9
*Detection* said:
There is no Pro mode for video, at least on my P30 anyway, video is it's own mode, fairly basic
Might be something to do with Android 9 though as the Galaxy S9 did have a video pro mode on Android 8, but was removed in Android 9
Click to expand...
Click to collapse
Yes go to Pro Mode and then hit the video button beside the shutter. I'm using Android 9. You can control focus, white balance, exposure.. 1 to 10x zoom, but no wide. They really need to add focus peaking too.
ForestyForest said:
Yes go to Pro Mode and then hit the video button beside the shutter. I'm using Android 9. You can control focus, white balance, exposure.. 1 to 10x zoom, but no wide. They really need to add focus peaking too.
Click to expand...
Click to collapse
Ah ok I see it now, but I do have the wide option too (Normal P30 not Pro)
EDIT - Wide only shows with 1080p, not with 4k
p30 main camera incapable of focusing at infinity manually
I have the same problem with the main camera on my p30 too. And this is really bad for me because I shoot timelapses of the stars. Unbelievable! I'm looking now to seee if I can send the phone back.

Question White dots appearing in long exposure shots on Redmi Note 10 Pro Max (S-30, ISO-6400)

Need help to fix this issue with long exposure shots on my Redmi Note 10 Pro Max. I recently bought the phone and today when I tested long exposure shots it showed white dots in all the pics with same settings, higher the ISO, more clearly the dots were visible.
What can I do to fix this issue?
I attached 2 shots below that I took in complete dark room after cleaning my lens carefully, and for extra precaution I point the camera towards a black surface closely. These are clicked with "Wide" camera in pro mode with Shutter Speed : 30 and ISO : 6400, when I reduce the ISO, they dots fade away a bit. Ultra Wide camera produces similar results.
I even downloaded ProShot app to check if it does any good but, same dots at same place were visible.
These 2 are taken by system camera app, using above given setting (S-30, ISO-6400)
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Sniper God said:
Need help to fix this issue with long exposure shots on my Redmi Note 10 Pro Max. I recently bought the phone and today when I tested long exposure shots it showed white dots in all the pics with same settings, higher the ISO, more clearly the dots were visible.
What can I do to fix this issue?
I attached 2 shots below that I took in complete dark room after cleaning my lens carefully, and for extra precaution I point the camera towards a black surface closely. These are clicked with "Wide" camera in pro mode with Shutter Speed : 30 and ISO : 6400, when I reduce the ISO, they dots fade away a bit. Ultra Wide camera produces similar results.
I even downloaded ProShot app to check if it does any good but, same dots at same place were visible.
These 2 are taken by system camera app, using above given setting (S-30, ISO-6400)
View attachment 5534839View attachment 5534837
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Which ROM and which cam?
ROM : MIUI Global 12.5.10 Stable and Camera : 108 MP, 5 MP, 8 MP, 2 MP and in depth details added as attachment.
Ping for @Laptapper
Mentioned the device details in the above reply.
That's hot pixels and/or noise. That's pretty much normal on any digital camera, especially on longer exposures and higher ISO. How much they're shown in the final image depends on noise reduction used - the less (less aggressive) noise reduction, the more they will be visible.
@Case_
Firstly thanks for helping out! And got what you're saying, so just wanted to know in my case, as I am on an android device, what measures can I use to fix this? Any third party app that'll process images with more noise reduction? Or maybe any way to change default settings of system camera app? Can't always switch to post editing to fix this, as it'll be tricky too.
@Sniper God I would start by not shooting 30 second ISO 6400 shots That can be a tall order even for a DSLR, let alone for a phone camera.
GCam ports have noise profile and noise reduction adjustments if you're willing to tinker. I think I saw a hot pixel removal setting there too. Also I've used the mobile Photoshop before for noise reduction. Other than that, I only ever use Snapseed for some light photo editing, but it doesn't have noise reduction (or I don't think it does, at least).
But yeah, as silly as the advice to not shoot shots like that might seem, that's honestly one of the best advices in photography in general - if your camera has some shortcomings, either take advantage of them and use them to improve the shots (which in this case is kinda hard), or work around them so the affect your shots as little as possible.
Case_ said:
@Sniper God I would start by not shooting 30 second ISO 6400 shots That can be a tall order even for a DSLR, let alone for a phone camera.
GCam ports have noise profile and noise reduction adjustments if you're willing to tinker. I think I saw a hot pixel removal setting there too. Also I've used the mobile Photoshop before for noise reduction. Other than that, I only ever use Snapseed for some light photo editing, but it doesn't have noise reduction (or I don't think it does, at least).
But yeah, as silly as the advice to not shoot shots like that might seem, that's honestly one of the best advices in photography in general - if your camera has some shortcomings, either take advantage of them and use them to improve the shots (which in this case is kinda hard), or work around them so the affect your shots as little as possible.
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Got it, but I've been trying to shoot with nearly same settings using different phones, and none of them reflected any issue like this. I think I should try resetting the phone or otherwise get to the service center as it is under warranty period. It even does this with inbuilt long exposure shot settings that are made to shoot stars and light painting.
It all depends on noise reduction algorithms and settings used. Many phone cameras are pretty aggressive in that regard, so things like these will rarely show up. Though it can also differ literally sensor from sensor, even on a same phone model, to a degree at least.
It is also IMO more likely to show up using settings made for astrophotography, because those are likely to have the noise reduction set pretty low to make sure it doesn't remove too many stars and smudge the sky too much.
I would seriously doubt a factory reset will change anything. But, I mean, you've got little to lose by trying that. And returning the phone is certainly your customer right if you're not satisfied with it.
BTW, out of curiosity, I just tried it on my phone. I got roughly the same amount of hot pixels as you did. Which, frankly, is impressively low for a phone camera as far as I'm concerned I'm pretty sure I'd get the same or more if I shot a 30s ISO 6400 exposure with my DSLR. I don't normally even use ISO 6400, I even try to use ISO 3200 as a last resort.

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