Exposure is longer than 1/10 second - Samsung Galaxy A8 (2018) Questions & Answers

Hello! Shutter speed is important for shooting night landscapes. The developers have limited the maximum shutter speed to 1/10 second. Therefore, automation puts a large ISO. Noise reduction turns parts into spots. Night photos from the A8 look much worse than on phones (cheaper) with the possibility of long exposure.
Is it possible to modify the software to remove the exposure limit? Third-party applications using the camera 2 api do not provide such an opportunity...

jon887 said:
Third-party applications using the camera 2 api do not provide such an opportunity...
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Try with Open Camera: https://opencamera.sourceforge.io
Try the manual mode Exposure compensation, ISO and Manual White Balance.
Quote from the FAQ:
ISO and shutter speed sliders - If Camera2 API is used, and a non-auto ISO mode is selected, instead of the exposure compensation sliders, two sliders will appear allowing you to control the ISO more finely, and (if supported) the exposure (shutter speed) time.
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Related

Camera manual shutter and aperture

Hi,
is there a camera app that supports manual shutter speed and aperture for the oneplus? Thx
XmechaniX said:
Hi,
is there a camera app that supports manual shutter speed and aperture for the oneplus? Thx
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You can control shutter speed in the stock camera app by switching to "Slow Shutter" mode and then setting a duration in the app's settings. You can a wider range of shutter speeds by using CameraNext Modded, the ColorOS Camera Port, or the Modified ColorOS Camera Port.
The aperture can't be tuned because it's fixed in the hardware. You have to change ISO if you want to change the brightness and use focus stacking (i.e. multi-image post processing) if you want a wider depth of field.
Thank you sir

[Q] HDR

Trying to shoot HDR but surprised that the only parameters that can be used to apply the exposure changes are ISO & shutter speed. Where is the aperture priority? Surely both of these change the aperture &, therefore, affect the depth of field & focussing of the HDR series? Am I missing something here?
Best,
Ray

Nokia 6 can shoot RAW (.dng), even from the front camera!

You can access the camera2 api of Nokia 6 with apps like opencamera or manual camera (this app is fantastic) and shoot RAW from both the front and back cameras.
There are also some more benefits like
- full manual focus
- iso adjustment upto 1600
- shutter speed adjustment upto 0.6s
- exposure bracketing shooting mode
- Kelvin based smooth WB slider
- realtime luminance and RGB histogram
etc
I've seen that shooting in RAW allows for suprisingly high dynamic range. The flexibility of being able to shoot RAW from the front camera along with autofocus (or manual) should highly appeal to selfie lovers
Been using the Adobe Lightroom app ?

A Guide for Better Photography [How to use manual mode][camera api2 pros]

It is boring to always use the auto mode in camera so let's try the manual mode and have greater quality pictures, which is better than auto mode.
What is manual mode ?
Manual mode is one of the main settings on your camera, and it lets you manually control shutter speed, white balance, manual focus, and ISO in most. These three settings work together to control the how bright or dark your photo is (known as exposure), as well as change the overall look of the image.
What is ISO ?
In photography ISO measures the sensitivity of the image sensor. The same principles apply as in film photography – the lower the number the less sensitive your camera is to light and the finer the grain. Higher ISO settings are generally used in darker situations to get faster shutter speeds.
What is Shutter Speed ?
In photography, shutter speed or exposure time is the length of time when the film or digital sensor inside the camera is exposed to light, also when a camera's shutter is open when taking a photograph. The amount of light that reaches the film or image sensor is proportional to the exposure time.
What is White balancing ?
White balancing is a process in which a camera will attempt to detect the type of white light largely visible in different environments. This is typically utilized to account for different light sources (fluorescent, incandescent, etc.), as well as different weather types and times of day (overcast, sunny, sunset, etc.). White balance generally focuses on collecting the proper temperature of white light in a scene, which ranges from cold (blue-tinted) to warm (orange or gold-tinted).
This is one setting that is often best left on automatic settings, unless the viewfinder suggests that the automatic white balance is obviously wrong. Of note, RAW images will have to be manually white balanced in post-processing, as RAW shooting will not modify the white balance in-camera.
What is Manual Focus ?
Manual focus controls are a more recent and much-appreciated addition to the control suite of manual smartphone photographers. Most camera apps features a simple and intuitive circular slider which can be used to accurately set focus manually in lieu of the jumpier and imperfect auto-focus, something which is often exaggerated when trying to take photos of close subjects. If you want to take a closer pic of something very near try macro focus.
What is Manual exposure ?
manual exposure is a small supplement to ISO and shutter speed settings, and it is one of the rarer manual settings one will find in smartphone camera applications. If a combination of shutter speed and ISO produce an unsatisfying image, manual exposure is often offered as a way of tweaking the brightness of an image in-camera. It can quite easily be replaced by simply modifying brightness after taking the photo, but it can sometimes be more efficient to get the image right the first time.
What do we have in our Lenovo P2 :
I had Camera api2 activated and snap camera hdr+ and oneplus 5 camera apps.
Shutter speed
Minimum 0.68s maximum 1/96423s
ISO
Minimum 100 Maximum 19200
Verdict approximate values
In low light condition
Higher ISO [ 500 ~ 19200 aprx] + Higher shutter speed [0.68 ~ 1/200 aprx]
In heavy light condition
Lower ISO [below 500 aprx] + Lower shutter speed [1/200s ~ 1/96423s aprx]
Camera Api2 advantages
Raw image capture support
In depth manual mode control
Enable camera api2
https://forum.xda-developers.com/lenovo-p2/themes/flashable-zip-activating-camera-api2-t3724207
Which app is best for manual mode?
? Snap camera HDR
https://www.google.co.in/search?q=Snap+camera+HDR+paid+apk&gws_rd=cr&dcr=0&ei=bXs-WuDaI4HEvQSYyLWQDQ [Google search result page, Cuz many getting confused about this app]
? Oneplus 5 camera
Download link https://forum.xda-developers.com/lenovo-p2/themes/stable-oneplus-5-camera-t3709983
? Adobe Photoshop Lightroom CC
? Camera FV 5
Reserved [for samples]
I can't use the RAW format, the scrren get mad and the camera crash, am i the only one with this problem?
Liacon said:
I can't use the RAW format, the scrren get mad and the camera crash, am i the only one with this problem?
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Screenshot
It's like this with all the camera apps that have avaible the raw format
At first I was thinking that the problem it's present because I usa a micro sd, but the image gets mad even without it.
I'm on the last lineage build by Higway Star
Liacon said:
It's like this with all the camera apps that have avaible the raw format
At first I was thinking that the problem it's present because I usa a micro sd, but the image gets mad even without it.
I'm on the last lineage build by Higway Star
Click to expand...
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Only the bug in camera driver can make mess like this.
Wonder Wicked Witch said:
Only the bug in camera driver can make mess like this.
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So it's a rom's related problem?
Liacon said:
So it's a rom's related problem?
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Same issue on stock s244, with every app.
Also, I've seen many others
Liacon said:
So it's a rom's related problem?
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icsdia said:
Same issue on stock s244, with every app.
Also, I've seen many others
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Maybe due to changing roms in mobiles the camera driver can get into buggy, not confirmed yet.
If you want Camera with Raw capture try "snap camera HDR" with force HAL1 enabled in-app setting.
If you looking for completely manual configuration try camera api2 ON in-app setting.
[camera api2 HAL3 vs HAL1 screenshots]
I can't find force hal1, sucks.
At least the manual controls it's a very sweet thing
Liacon said:
I can't find force hal1, sucks.
At least the manual controls it's a very sweet thing
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Did you check it out properly? It is in-built in app itself.
Wonder Wicked Witch said:
Did you check it out properly? It is in-built in app itself.
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I have check the same option that you show in your screen shot, but maybe it's because I have the trial version
Liacon said:
I can't use the RAW format, the scrren get mad and the camera crash, am i the only one with this problem?
Click to expand...
Click to collapse
Same problem here.
Liacon said:
I have check the same option that you show in your screen shot, but maybe it's because I have the trial version
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Maybe you can get it for free if you Google it.
YoYoRishi said:
Same problem here.
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With camera api2 raw fails as it is not supported in P2 right now. But without camera api2 or with Hal1 enabled you can capture raw image in DNG format.

Question Samsung A-12 moon photos

I recently purchased an A-12 and want to take photos of the moon but they are very grainy, blurred.
Can anyone advise me me on the correct settings to use ?
Thanks in advance.......
So I watched a YT video on the subject, the guy said when you increase the ISO setting you should increase the shutter speed as well.
When I go into Pro mode I can only see 3 buttons - ISO, WB and another that has a slider from -2 ~ +2, I think it's something to do with brightness.
How do I adjust the shutter speed ?
Thanks in advance.....
In general, as long as you are able to set ISO you don't need to worry about shutter speed, it is adjusted automatically according to the scene brightness. Just set ISO to a smaller value and you'll have low noise and low shutter speeds, which, or course, cause the moving things to blur much more, so either a tripod or 4-axis optical stabilization is compulsory for sharp low-shutter-speed/long-exposure pictures. A12 does not have any optical stabilization at all, so you have to use a tripod. Also I recommend to set the exposure adjustment (it's the +/- slider) to a lower value to bring up details on the moon, otherwise it can look totally white.
uluruman said:
In general, as long as you are able to set ISO you don't need to worry about shutter speed, it is adjusted automatically according to the scene brightness. Just set ISO to a smaller value and you'll have low noise and low shutter speeds, which, or course, cause the moving things to blur much more, so either a tripod or 4-axis optical stabilization is compulsory for sharp low-shutter-speed/long-exposure pictures. A12 does not have any optical stabilization at all, so you have to use a tripod. Also I recommend to set the exposure adjustment (it's the +/- slider) to a lower value to bring up details on the moon, otherwise it can look totally white.
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Thanks very much uluruman, I will try that......
why you buy a lowcost device for that?

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