Camera flash green tint issue is stupid hardware problem !!! - Galaxy S II Q&A, Help & Troubleshooting

HI
got like others the green tint on pics or videos taken with flash on.
So i looked deeper on the problem and made some experiment.
And SORRY no software way to avoid it....
Its not a white balance bug like some people said.
Got a good experience in dslr ,lenses and some knowledge on optics.
Results on SGS 2 :
a really bad implementation of flash led.
There s light reflexion of the led on the lens cover (not camera lens) who got anti flare treatment.
at some angle it can be red or green.
u can see it in this picture of a disassemble SGS2.
http://samsungmobilerepairs.co.uk/images/Galaxy S2 disassembled.jpg
Zoom on pic and look at the lens cover.
it s just not enough protected of the led light reflects.
Sure there s some tweak but u have to open ur phone and void ur waranty.
How a real camera engineer can miss this kind of issue???
Im thinkin to open mine so will let u know if i find the way to solve this.
With for sure some sample of a proper camera with led flash !!

Related

[Q] Camera pink hue :( anyone else?? - SOLVED (AUTO WB/INADEQUATE LIGHTING)

Auto WB issue! Video Link showing dynamic changing in light sources: http://www.youtube.com/watch?v=0F0x1wkt5EU
This ones to all you SGS2 owners...
Today whilst takin' pics of my son, i noticed whilst pointing the camera down at my cream coloured carpet a pink hue was clearly visible in the centre of the shot. I took a snap and the hue was on definitely there... this was during the day time with only ambient light from my large bay windows...
slowly panning up across the room towards the window it seems to fade away, but directly at the light surface its unmissable...
I double checked the shot on my partners DHD, her shot was completely pink, very poor camera!!
Anyone elses S2 suffering from this? a quick google search shows this has also been an issue on other handsets such as the Nexus One and Samsung Focus...
Cheers,
Dickie
This is very important.
Can you make some photos and upload it?
if someone more have the classic tint pink of cheap cameras like other HTCs I am going to cancel my order inmediately.
Here are some untouched Macro shots taken in my backyard in fading light with the Galaxy S II, was a bit windy so the flowers kept moving:
Click for full sized image
I don't know of any sansung Focus.
Can anyone shoot to white walls or cloudy sky?
It is the faster way to see if the camera have the pink tint.
Intratech said:
I don't know of any sansung Focus.
Click to expand...
Click to collapse
lol alright smart arse, edited
The shot! 8mp default settings
http://postimage.org/image/7zd9ak9w/
Dickie
just to add, this has been the only time ive noticed this issue, shots taken across the room show no visible signs of this, just the straight shot...
tbh, with the quality of all the other shots ive taken, its not a deal breaker for me, this phone still blows away any other ive used, and i don't find blank white walls/carpets interesting enough to take photos of...
Dickie
That sure looks like something I read about some HTC phone a while back. I'll need to check my phone to see. I wonder if it's software or hardware related.
after some testing i believe this is a software issue, specifically with the AUTO White Balance setting, as i point it to the cloudy sky out the window it looks perfect and when switched to incandescent it goes away!!
like i said before, i don't make a habit of shooting my carpet or my white walls very often!
Dickie
EDIT: when switched to Daylight mode, it also goes away, although it makes the carpet look orange for obvious reasons... Definitely a White Balance issue, the lighting and colour of the carpet requires the correct setting as opposed to the Auto mode, outside or with good lighting the Auto setting is fine! as far as i'm concerned, panic over! lol
dickie2007 said:
after some testing i believe this is a software issue, specifically with the AUTO White Balance setting, as i point it to the cloudy sky out the window it looks perfect and when switched to incandescent it goes away!!
like i said before, i don't make a habit of shooting my carpet or my white walls very often!
Dickie
EDIT: when switched to Daylight mode, it also goes away, although it makes the carpet look orange for obvious reasons... Definitely a White Balance issue, the lighting and colour of the carpet requires the correct setting as opposed to the Auto mode, outside or with good lighting the Auto setting is fine! as far as i'm concerned, panic over! lol
Click to expand...
Click to collapse
That it isn't a white balance issue, it is a hardware problem. HTC got the same problems on a lot of devices before, and they tried to hide it tweaking the colors, but that doesnt solve the real problem.
If I were you I will return the phone for another one.
kersh said:
That it isn't a white balance issue, it is a hardware problem. HTC got the same problems on a lot of devices before, and they tried to hide it tweaking the colors, but that doesnt solve the real problem.
If I were you I will return the phone for another one.
Click to expand...
Click to collapse
then why when i switch to the correct WB setting for the lighting i'm in does the issue disappear?? the issue only arrises in Auto mode under certain lighting conditions. just took a white sheet outside on Auto - No issue!
Dickie
Maybe in a non-auto mode they know the color temperature that software will apply to the image and then they can tweak the pink tint of the image, but with an auto mode that changes dinamically the color grade they cant adjust the pink tint.
I really dont know, but all of the pink tints problems in all other phones are hardware related issues, I don't know why this is going to be different.
i get exactly what you are saying, but i'm only going by what i'm working out on my device...
at the end of the day, like i said before, its not a deal breaker for me, and ive not had a single issue with it in other lighting conditions...
Also, ive just walked around my room allowing the camera to adjust dynamically, and it does disappear!! i have a standing lamp on, a small window on the opposite wall, and the large bay window at the front of the room, the pink hue is not permanent and is just the Auto WB not being perfect.
Its even visible on video, so i'll upload a vid of the pink disappearing as i walk around the room and the light changes dynamically! Auto WB issue for sure!!
Dickie
Just registered after seeing this...
A pink hue like you describe usually means infrared contamination, and happens on any camera to varying degree. Some black clothing in direct sunlight suffers the most.
Edit: Extreme Example: vimeo (dot) com/5637250
Regards, Matt
I'm just uploading a video to Youtube 720p - WB AUTO
You can clearly see the pink hue fading in and out as the phone auto adjusts to the varying lighting in my home, namely Incandescent light fittings, Fluorecent light fittings and daylight outside.
If i set the camera to a setting for one of those lighting conditions specifically, there is no issue in said condition.
I will update this post when its uploaded with the link - THIS IS NOT A PERMANENT HUE CAUSED BY HARDWARE - ITS SOFTWARE STRUGGLING WITH THE LIGHTING CONDITION!! - phew!!
Dickie
EDIT: the hue becomes very apparent after pointing the camera and any of the light sources directly then quickly moving to a white surface, it then gradually adjusts away...
LINK: http://www.youtube.com/watch?v=0F0x1wkt5EU
kersh said:
Maybe in a non-auto mode they know the color temperature that software will apply to the image and then they can tweak the pink tint of the image, but with an auto mode that changes dinamically the color grade they cant adjust the pink tint.
I really dont know, but all of the pink tints problems in all other phones are hardware related issues, I don't know why this is going to be different.
Click to expand...
Click to collapse
I doubt Samsung will use the low quality camera sensor that HTC uses buddy.
ScepticMatt said:
Just registered after seeing this...
A pink hue like you describe usually means infrared contamination, and happens on any camera to varying degree. Some black clothing in direct sunlight suffers the most.
Edit: Extreme Example: vimeo (dot) com/5637250
Regards, Matt
Click to expand...
Click to collapse
not sure its the same buddy, it appears in the centre of the image and fades out, i'm 100% certain that this issue is WB/lighting condition related, 10mins and the link will be up if your interested...
Dickie
Intratech said:
I doubt Samsung will use the low quality camera sensor that HTC uses buddy.
Click to expand...
Click to collapse
I can't agree more there, you should have seen the same shot on the Desire HD, the carpet was entirely pink!! not just a spot in the middle..
Dickie
BTW I just checked my phone and observed the same situation as described by Dickie. After checking for myself I'm certain it's software related. They may need to tweak their auto white balance algorithm.
Please see link above or in OP
Dickie

[Q] Camera problem lumia 800

Ohkk this is a weird prblm whenever im taking pic during the night on auto bfre taking the snap everythng thing luks blue and when i take it like if im taking a frnds pic with the flash falling on him it cums nrmal if thers no flash it cums blue evn yesterday at night i tuk a pic of a tower it came out blue is anyone else having this prblm or is it hardware fault.
Im having a cyan 800 with 12072 india
you should respect people reading you and beginning by edit your post to make it more easily readable....
Yeah, that post is hard to read.
I'd say try checking to see if the White Balance setting is on Automatic or something else.
Srrry i am kind of new to posting and all if u did nt gt it the picture cums blue whn i take it at night and evnwhite balance is on auto
It's a known problem with the white balance in dark conditions. The pics just turns out blue. Not much you can do. Perhaps manually select "beach" or something as scene choice. Myself I never photograph in the dark with my phone. For that I have my full-frame DSLR camera.
Thanks man for tht

Lumia 920 Red-eye problem

I think I didn't do any picture in low light with flash on which didn't make the red-eye effect on people.
I think it starts to really be an issue. I know there is software to remove the redeye effect, but it's definitely not the same as not having the red-eye to begin with. I didn't had this issue with the S2 that I still own.
What do you guys think? Do you find this red-eye an issue or not? Why didn't Nokia test this and just put the flash a little bit further away from the camera lens?
You have to put the flash a long way away from the lens to avoid red eye. But with LED flashes it's not such a problem as they can stay on long enough for the eye to settle down.
can you post an example?
Not a major issue for me. The ones I do get red eye issues, like you mentioned creative studio red eye fix works ok
Sent from my RM-820_nam_att_100 using Board Express
Ok, here are some examples:
https://www.dropbox.com/sh/wkz4k560m1zwm04/02gZfV5c27
Of course it's not a dealbraker, yes you can use creative studio, and it makes a good job removing them, but you end up with the corrected images in saved images, instead of camera roll, so it's not a very fluent user experience..
@gilesjuk so you're saying if they program the flash to stay on a little bit longer the red-eye effect won't be so noticeable? That would seem a quick fix for them to do, but for them to bother about this we have to say to them that this is really an issue for us...
shumilica said:
Ok, here are some examples:
https://www.dropbox.com/sh/wkz4k560m1zwm04/02gZfV5c27
Of course it's not a dealbraker, yes you can use creative studio, and it makes a good job removing them, but you end up with the corrected images in saved images, instead of camera roll, so it's not a very fluent user experience..
@gilesjuk so you're saying if they program the flash to stay on a little bit longer the red-eye effect won't be so noticeable? That would seem a quick fix for them to do, but for them to bother about this we have to say to them that this is really an issue for us...
Click to expand...
Click to collapse
the only ways to avoid redeye is to move the flash so that light bouncing out of the back of the eye doesn't hit the sensor
red eye reduction is accomplished by making the subject's iris constrict to a pinpoint by either (1) pre-blindng them with a flash before taking the photo - this is typical for P&S red-eye reduction, or (2) if using an LED flash just have the flash come on a bit early to do the same thing. The iris reacts "slowly" by digital camera standards...
If you take multiple shots one right after the other with flash, only the first will likely have redeye - you could try just taking back to back shots ...

Duff camera?

I think I have a duff camera on my new Z2, took some photos of a off white coloured box and a wooden desk and green horizontal banding on the photos. I also noticed what looks to be an oscillation in brightness when previewing a picture before taking the photo.
Has anyone else noticed this behaviour? I have requested a replacement as this is not something I have seen before and don't think it should be doing this.
The other query is about image stabilisation, stabilisation can be enabled in manual mode but cannot when using the superior auto mode, is this correct?
Thanks
Mine performs great. I'd ask for a replacement because it seems like a defect.
Fluorescent tube lighting by any chance?
Sent from my D6503 using Tapatalk
There was fluorescent lighting but it didn't affect an iphone taking the exact same picture, my old Galaxy S3 wasn't affected by fluorescent lights either. If the Z2 is affected that badly by lights in the ceiling it is pretty crap and will definitely be getting a refund.
We will see if the replacement is any better but I don't have a huge amount of confidence that it will be.
George_2010 said:
There was fluorescent lighting but it didn't affect an iphone taking the exact same picture, my old Galaxy S3 wasn't affected by fluorescent lights either. If the Z2 is affected that badly by lights in the ceiling it is pretty crap and will definitely be getting a refund.
We will see if the replacement is any better but I don't have a huge amount of confidence that it will be.
Click to expand...
Click to collapse
Should be an attachment showing the banding on the photograph.
Point any digital camera near a fluorescent light and you'll see why I asked that. It's not constant light, they pulse and taking photos of white objects bounces the pulsing back to the camera, iphones may be different due to a rolling shutter what ever that means but I know for a fact galaxy s3 did the same because I had two of them and I spent a long time in my flourescently lit shed trying to take photos of white snakes.
Look here and read the section on disadvantages and sub section on flicker effect.
http://en.m.wikipedia.org/wiki/Fluorescent_lamp
Sent from my D6503 using Tapatalk

Sony Z2 Camera problem

I know this phone has a lot of issues with overheating, especially while using the camera, but recently I bought this phone and it came with a very strange camera problem. I must say first that the phone isn't new it's already used but neverthelss I didnt expcet everything to be working flawless but this thing kind annoys me.
This is the problem that I am facing with watch?v=ANLkCRZ-M-g ( just paste this after youtube com because I am not allowed to post links )
Is is possible to be a software problem or just a camera sensor is not working properly ? Device is running on Marshmellow 6.0.1.
Thanks in advance. Help would be appreciated.
Hello, try to look into your camera glass lens, is it clear?? or you can see some scratches with random colors?
The video shows a kind of glare.
Is it the same in the dark or just in the daylight?
it would be better if you can post here some close photos of the camera lenses.
No matter what, light or dark, pic and video always have the same glare of light which sometimes change colour into pink or lightblue like the one shown in the video . No scratches found on the lens.
Here are the pics, just as above first type imageshack com and then the rest.
a/img924/3623/hBwZzx.jpg
a/img921/562/W4He9m.jpg
If the phone back cover and the camera lens are clear as you said and properly sealed than it is a hardware problem probably. camera could be replaced and it is not very expensive.

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