Develop Bugs

[Q] Ace 2 - Camera Focus problem

When I take pictures with my new Samsung Galaxy ACE 2 (few weeks old),
Pictures with camera focus setting to macro, then it take sharp photos
but when I set it to auto-focus, the borders are sharp, but the image in the center is out of focus and blurry.
When I capture a movie, the same problem occurs, the middle is out of focus and the borders look sharp.
Is this a bad camera module? is there any possibility to tweak the focus of the camera? I've already upgraded the firmware to Jelly Bean, but no improvements. I am thinking about replacing the camera module, or buy another phone.
I read some one had same problem with galaxy ace.

My auto-focus is working fine in all of video, back and front cam.
No noticeable difference to using macro mode either.
So would think u've got a faulty module then

Carpe-Dimi said:
My auto-focus is working fine in all of video, back and front cam.
No noticeable difference to using macro mode either.
So would think u've got a faulty module then
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Click to collapse
When I take photo close to the object it's sharp in the middle, if the object distance is more than 50 cm away, then center is out of focus but borders are sharp.
So it's probably a focus problem of the camera module, is there any solution to adjust the focus point of the camera module, or just replacement?

Solved the problem.
I opened the ace 2, removed the back,
cleaned the camera lens on the print board. cleaned with alcohol
that fixed the problem :good: photo's now!

Discovered a Camera (front) trick....

Everyone knows the weakness behind our Back Camera.. but does everyone know how POWERFUL our front facing camera is? I bet you didn't know you can crank the ISO to 12446 on the front facing camera
You can now take selfies in almost pitch black rooms (and come out grainy, but visible).
Inside the "Selfie" mode, click on EV +2 and go into a dark room.
Your image will automatically being super grainy but you'll be able to see yourself like no other!

im_high_tech said:
Everyone knows the weakness behind our Back Camera.. but does everyone know how POWERFUL our front facing camera is? I bet you didn't know you can crank the ISO to 12446 on the front facing camera
You can now take selfies in almost pitch black rooms (and come out grainy, but visible).
Inside the "Selfie" mode, click on EV +2 and go into a dark room.
Your image will automatically being super grainy but you'll be able to see yourself like no other!
Click to expand...
Click to collapse
It worked...night vision now?

Isn't that an awesome trick?! I love it!

im_high_tech said:
Isn't that an awesome trick?! I love it!
Click to expand...
Click to collapse
Yes...it's weird it only works on front camera and not on regular one...but yeah! Takes photos on pitch black room

Does anyone know if the rear facing camera has an IR filter on it? That may explain this, because if the rear facing camera has a filter but the selfie one does not, the selfie camera will let in more "light", and use ambient IR to illuminate your face slightly more. That's just my best guess.

Joren.ideas said:
Does anyone know if the rear facing camera has an IR filter on it? That may explain this, because if the rear facing camera has a filter but the selfie one does not, the selfie camera will let in more "light", and use ambient IR to illuminate your face slightly more. That's just my best guess.
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The reason you can do this with the front is because the camera used is exactly the 4UP sensor from the M8 which has larger pixels for better low light performance

Front facing camera blurry?

Has anyone also the problem with the front facing cam, that it only delivers sharp pictures while holding the cam no too far away? If I hold my arm fully streched, the image is never 100% sharp. The view finder shows a sharp picture but the result is blurred. I really start to worry that my front facing lens might be broken. But if this was correct, the preview was also blurred, right?

Hi,
I've been experiencing the same issue. Any subject beyond arm's length appears blurry. Not sure why this is. Were you able to solve this issue in some way?

The front facing camera probably has fixed focus so moving the subject further away will result in a blurry image. There's also some very aggressive noise reduction processing that really softens the image regardless. I don't find the front camera to be particularly impressive despite being optically stabilized, wish it still had the same sensor as the m9 as that provided better shots anyway.

Any solution to this guys on the selfie camera. Could it be a defective sensor of the selfie camera? If I am the object it works fine beyond one feet turns out to be blurry. I just got my 10, two weeks back. If anyone could solve kindly reply
Thanks

Any solutions for this. What I am currently doing is holding the camera close while taking selfies as this is the only solution I could find. Other then that it's a great device.

Did also not find a solution yet.

Xiaomi mi6 optical zoom is actually digital?

Hello guys,
Ive been playing with my mi6 for a while and noticed a strange thing. Photos captured at 2x look actually more like a digital zoom than an optical, even though the resolution is the same as 1x. When you actually cover the left camera lens, the picture is still normal. No matter if you choose 1x or 2x.
Any ideas?
Thanks in advance.

You can explicitly set the lens on manual mode.

marinespl said:
You can explicitly set the lens on manual mode.
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Click to collapse
Thanks, you da real MVP!

Where can you change that? Still on MIUI8.

it does that in low light shots, cause the tele lens is so bad at low light that it prefers to shot in main camera and zoom it in.
sources : miui forum? red it when i bought it

ZackoFF96 said:
it does that in low light shots, cause the tele lens is so bad at low light that it prefers to shot in main camera and zoom it in.
sources : miui forum? red it when i bought it
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That's right, the telephoto sensor has 1.00µm pixel size at f/2.6 aperture, while the main sensor has 1.25µm pixel size at f/1.8 aperture.

camera takes unusable pictures. but excellent macro images

I am facing an unusualy issue which has cropped up suddenly.
I am not able to use the rear camera of the moto z play for anything as all images are extremely blurry as if an opaque cover is kept in front of it. But If I use the camera from a 1 inch or lesser distance, the clarity is superb as if its only meant for macro shots.
This issue is not happening with the front camera but only the rear camera.
Please help.

devarshi84 said:
I am facing an unusualy issue which has cropped up suddenly.
I am not able to use the rear camera of the moto z play for anything as all images are extremely blurry as if an opaque cover is kept in front of it. But If I use the camera from a 1 inch or lesser distance, the clarity is superb as if its only meant for macro shots.
This issue is not happening with the front camera but only the rear camera.
Please help.
Click to expand...
Click to collapse
Sounds like hardware problem
Do you have a warranty?

devarshi84 said:
I am facing an unusualy issue which has cropped up suddenly.
I am not able to use the rear camera of the moto z play for anything as all images are extremely blurry as if an opaque cover is kept in front of it. But If I use the camera from a 1 inch or lesser distance, the clarity is superb as if its only meant for macro shots.
This issue is not happening with the front camera but only the rear camera.
Please help.
Click to expand...
Click to collapse
Seems like problem with laser focus, check if manual focus is working or not.
If it's working then maybe it's the laser module that's giving trouble.
PS: check if the lens is clear and there's no dust inside.

Hi,
I changed my battery yesterday and my camera is behaving the same way. Manual focus does not work.
I had to apply a lot of heat to open the screen and also on the back, to loosen the old battery. Could it have damaged the rear camera?
If I replace the camera module, the laser sensor will be replaced too?
I also lost the finger print sensor, but maybe that's because I lost the lever of the zif connector.
OP, did you have some heat on your phone too?