I took my S9+ to a concert and while shooting in low light in auto mode, strobe lights seem to cause a problem. I think the phone is switching between cameras when the strobes come on. I had just gotten the camera that day so I didn't have time to mess with recording in any other modes. Is this a common problem with Samsung phones? My previous G6 didn't suffer from this issue but it's low light video is terrible in comparison.
This video demonstrates the issue around the 2:30 mark.
youtu.be/vrNg9X4GJSw?t=147
Oh wow, that's definitely not right! I first thought it would have been something with the aperture change before watching the video, but that would cause brightness issues - not jumpiness like that!
Sent from my SM-G965W using Tapatalk
Alius Ratio said:
I took my S9+ to a concert and while shooting in low light in auto mode, strobe lights seem to cause a problem. I think the phone is switching between cameras when the strobes come on. I had just gotten the camera that day so I didn't have time to mess with recording in any other modes. Is this a common problem with Samsung phones? My previous G6 didn't suffer from this issue but it's low light video is terrible in comparison.
This video demonstrates the issue around the 2:30 mark.
youtu.be/vrNg9X4GJSw?t=147
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Cool i want this as an effect
Related
Hi,
I recently got the Samsung Galaxy SII and noticed that I'm not getting a clear image from the front facing camera (I'm seeing a bunch of vertical lines). Outdoors the camera is fine, I noticed it occurs indoors (so I'm assuming it's because of low light, although my rooms seem lighted enough) and is more noticeable with a higher screen brightness on the phone and when recording a video. It got me worried enough when I was testing video recording in my room and I was seeing these lines on my face.
I tried searching for answers but couldn't find any, maybe it's because I'm not familiar with camera terminology . Is this what you call a grainy image?
Is this normal? I wasn't expecting quality from the front facing camera anyway, so if other users experience this too then this really isn't much of a problem. The image I uploaded shows the vertical lines I'm talking about. I bumped up the exposure value to get the lines to show more because it looks that bad, sometimes worse, when recording video.
Hopefully this is normal and I'm just being a noob. I don't want any problems on such a great phone! Thank you for any help in advance!
That just looks like noise due to the small sensor, you can try setting the ISO to be locked at 100 to minimise noise. The downside is that shutter speed will be used to compensate so you need to hold the camera steadily.
The phone doesn't let me change the iso for the front facing camera and I can see those lines even before taking the photo or video. I'm just wondering if other users experience this. If not then maybe I need to get it exchanged D:
Thank you for your reply though.
I am stock unrooted(till my 30 days are up) anyway I have seen a bunch of concerts recently and recorded video using my HTC Inspire, then with my brief time with the LG Thrill, and now with the Galaxy S 2 and while the galaxy s 2 seems to give the best quality recordings it seems while recording it will blur the video for a few seconds like its trying to focus then it will go back to normal it may do this once or twice during a 2-3 minute video yet I never had this problem with my Inspire or LG Thrill just wondering if I am missing some settings or what the deal is?
Auto Focus
bbubel said:
I am stock unrooted(till my 30 days are up) anyway I have seen a bunch of concerts recently and recorded video using my HTC Inspire, then with my brief time with the LG Thrill, and now with the Galaxy S 2 and while the galaxy s 2 seems to give the best quality recordings it seems while recording it will blur the video for a few seconds like its trying to focus then it will go back to normal it may do this once or twice during a 2-3 minute video yet I never had this problem with my Inspire or LG Thrill just wondering if I am missing some settings or what the deal is?
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Most likely the other phones do not have the feature of
continuous auto focus during video recordings.
Perhaps one of the devs will include a mod in these custom roms
which can enable or disable the auto focus feature while recording
video clips.
(not many camera phones have auto focus during video recordings)
I guess I don't understand the continuous auto focus, to me that would mean it would auto focus always so I wouldnt get the blur issue. I went through the video recording settings didn't really see anything I could do that would remedy the situation.
Sent from my SAMSUNG-SGH-I777 using XDA App
Auto-Focus
bbubel said:
I guess I don't understand the continuous auto focus, to me that would mean it would auto focus always so I wouldnt get the blur issue. I went through the video recording settings didn't really see anything I could do that would remedy the situation.
Sent from my SAMSUNG-SGH-I777 using XDA App
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Continuous auto-focus in i777 SGS2 means that it will
auto-focus as needed automatically while recording video.
So when the foreground or background changes and people
or objects are closer or further from the lens that's when
it will automatically try to auto-focus for optimal results.
I don't see too much of a problem on my test video but then it's not moving "too fast" like people/motion.. only cars passing by.
http://www.youtube.com/watch?v=PRat0Drzu6s
This happened to me while at the gun range, kind of anyways. The camera was blurry for the first half of the video like it wasn't even trying to focus, then when it did I guess it didn't go out of focus again. Very odd. Now that I'm on MIUI this doesn't happen, this video is from when it was stock unrooted.
http://www.youtube.com/watch?v=rcBAAOPvhv8
To be honest, on the stock/unrooted version I was running, I was having the exact same difficulties. You would expect that the camera wouldn't have to test its entire focus length before finding one that works and goes back to it.
It's not as noticeable when recording objects far away whose distance isn't changing, but when something passes in front of the camera or you move it to something slightly closer and it loses focus at all, it takes a good 1-2 seconds to refocus. That's a lot of time.
I was just thinking, could this be caused by my video recordings running off a 16gb class 4 kingston sd card? If so would I need to up the class or could I just switch my video recordings to go onto the 16gb of internal storage space? I may just switch it to internal and try a video and see if that is part of the problem.
Whenever I am recording video it seems to be constantly going in and out of focus. Any idea what I'm doing wrong?
Care to expand so we can help?
Sent from my SGH-I777 using XDA App
You couldn't ask both your questions in one thread? Post some examples.
I'm not sure what else to say besides it oscillates constantly, meaning fractions of a second.
Miami_Son said:
You couldn't ask both your questions in one thread? Post some examples.
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I don't think they should be in the same thread because they are different issues. Perhaps they are related, but then it would be do to a hardware issue.
What's the preferred means of posting examples?
If your having problems with both stills and videos, then it is likely related. You can attach jpg files to your post. You can upload vids to YouTube and post the links here.
Here are a few example shots.
The 1st shot is with the camera settings at default. The 2nd shot has anti-shake on. The 3rd shot has auto-contrast enabled.
As you can see they are all grainy and blurry even though I'm taking an image of something that is not moving.
The light produced from an overhead halogen. However, the pictures turn out similar under standard incandescent, fluorescent, or any other non-natural lighting. Also I tried out several other settings without any improvement (e.g. setting white balance to incandescent, setting the scene to party indoor, using macro focus instead of auto, etc.).
That's sensor grain. It happens when there is insufficient light as the sensor has to work harder to expose the scene and it heats up. Also, since the scene is so dim the camera is using a slower shutter speed, which results in some camera shake that causes a less sharp photo. Can you take a pic with the flash on? Also, if you are expecting Canon-level photography from this (or any cell phone camera) expect to be disappointed more often than not.
Miami_Son said:
That's sensor grain. It happens when there is insufficient light as the sensor has to work harder to expose the scene and it heats up. Also, since the scene is so dim the camera is using a slower shutter speed, which results in some camera shake that causes a less sharp photo. Can you take a pic with the flash on? Also, if you are expecting Canon-level photography from this (or any cell phone camera) expect to be disappointed more often than not.
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Cool, thanks so far. I will try it with the flash on. I have taken pictures in a lot of indoor light and if anything is moving the whole image is blurry. Sometimes it looks like the air is shimmering.
Perhaps what I need to do is to use something other than auto ISO?
DLarva said:
Cool, thanks so far. I will try it with the flash on. I have taken pictures in a lot of indoor light and if anything is moving the whole image is blurry. Sometimes it looks like the air is shimmering.
Perhaps what I need to do is to use something other than auto ISO?
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Nope, just like Miami_Son said, auto flash will make the difference. That or bright enough lighting. Try it during the day time.
Sent from my páhhōniē
Like I said, in low light the camera will pick a slower shutter speed, which causes camera shake and blur of anything moving. What seems well lit to the eye is different for a camera sensor. Either use flash or turn on more lights. You can try turning up the ISO, but that can also increase grain.
Record video in 720p and the autofocus issues should go away.
hi, this phone don't have led flash for taking video in low light and i can't find any setting to enabled night mode in video, anyone have any tips?
This is a drawback of this phone! But now there is no good that phone dark light cameras, including the Nokia 925 and HTC One.
arcxandroid said:
hi, this phone don't have led flash for taking video in low light and i can't find any setting to enabled night mode in video, anyone have any tips?
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If you record in 30FPS low light is does a reasonable job, if you record in 60FPS in low light the video will end up darker. Learnt from my mistake a week ago.
kil43 said:
If you record in 30FPS low light is does a reasonable job, if you record in 60FPS in low light the video will end up darker. Learnt from my mistake a week ago.
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Thanks for the tip, never notice this problem, always taking videos in 60fps all times :good:
Post any videos you've made with the phone! i'm currently working on some..i tend to do guitar videos on my youtube.
sadly, i'm not a fan of the G2 video camera.. it seems like it doesn't look as HD as it should to me. i just did a guitar video in my room..yes it's dark out, but i had my ceiling light and another lamp on, but even then everything looked really soft and blurry and nothing focused well..on top of the fact that anything white is completely overblown so you have to drop the exposure down like crazy. all in all, i'd say the GS4 recorded better videos.
especially bc the G2 does that constant focusing crap that the rezound did..where it's like, pulsating for some reason. weird.
post your videos!
here's the videos i did..i'm not happy with them whatsoever. the audio is bad, the constant focusing is terrible.
used audio focus on this..absolutley no difference lol i focused it on the amp, but yeah, i don't see any difference.
http://www.youtube.com/watch?v=S0SvRXoumHQ&feature=youtu.be
http://www.youtube.com/watch?v=RVDibA2u-7M&feature=youtu.be
this one sounds worse with more garbling..also, i did this one at 60fps, but youtube won't show it obv
tip for 60fps: the FPS drops really low when in low light situations..so don't expect 60fps in low light! you have to be in ample lighting for it to work correctly!