Question I think this would be possible but it's above my skills and that is to turn the laser auto focus from the camera into a laser range finder lg say the laser measures the distance to focus so I don't see how it can't be used as a laser range finder maybe there's an app out there that does it but I couldn't find one I think it would be a cool add on app for the g3
I know there are a lot of range finder apps it there but I think using the g3s laser would make the app much more accurate
Robshr said:
Question I think this would be possible but it's above my skills and that is to turn the laser auto focus from the camera into a laser range finder lg say the laser measures the distance to focus so I don't see how it can't be used as a laser range finder maybe there's an app out there that does it but I couldn't find one I think it would be a cool add on app for the g3
I know there are a lot of range finder apps it there but I think using the g3s laser would make the app much more accurate
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It's only effective up to a certain short distance unlike the commercial range finders. Its possible but I think it only works for fairly close objects.
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I don't know if anyone knows of a way, or not as the case may be, to access the laser autofocus sensor for use in developing an app.
I'm personally assuming that the sensor records distance data in order to change the focus of the camera. I want to be able to access that distance data for use in a Range Finder app. Any help in this would be greatly appreciated! And if this isn't in the right forum, do let me know
+1
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+1
Would love to see this!
contraryrhombus said:
I don't know if anyone knows of a way, or not as the case may be, to access the laser autofocus sensor for use in developing an app.
I'm personally assuming that the sensor records distance data in order to change the focus of the camera. I want to be able to access that distance data for use in a Range Finder app. Any help in this would be greatly appreciated! And if this isn't in the right forum, do let me know
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Click to collapse
+1
PS: I tried the autofocus laser...
and i find it really strange...
The first time i tried it without covering the laser sensor, and i got a fast and precise focus.
Then the second time i tried to cover (with a finger) the autofocus sensor and i still got a fast and precise focus...
(the test was done on a low light ambient)
Can someone explain this?
Sent from from my LG-D855
EpicChineseTime said:
+1
PS: I tried the autofocus laser...
and i find it really strange...
The first time i tried it without covering the laser sensor, and i got a fast and precise focus.
Then the second time i tried to cover (with a finger) the autofocus sensor and i still got a fast and precise focus...
(the test was done on a low light ambient)
Can someone explain this?
Sent from from my LG-D855
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The camera falls back on software in situations where the laser can't get an accurate reading similar to how the S5 and all other phones focus normally. It's possible that our wasn't using the laser for this reason when you tested it even though its on.
Sent from my LG-D850 using XDA Premium 4 mobile app
Hi.
Taking hundreds of pictures with G4 during last weekend, I cannot sure my G4's laser auto focus is working well.
Focus time by touch is not instant as expected.
So I tested by taking picture after blocking laser part (black area left of lens), but I cannot feel any difference.
Does anybody knows how laser auto focus works?
And do your devices make difference after blocking laser ?
Is that possible to make an app that control the laser sensor in the LG g4 and make it read fingerprint and because the laser is used to measure distances so it may also measure the distance in our finger
Abdelrahman tarek said:
Is that possible to make an app that control the laser sensor in the LG g4 and make it read fingerprint and because the laser is used to measure distances so it may also measure the distance in our finger
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nope because we don't have the api of the laser.
TL;DR/dream response to this post:
If anybody that has Camera FV-5 (this is the app I want to use and it seems to have the best support for MF via Camera2 API and "LENS_INFO_FOCUS_DISTANCE_CALIBRATION_CALIBRATED") could...
1. Switch to MF in FV-5
2. Set focus distance to infinity (drag the MF slider all the way to the left to the "mountain symbol")
3. Take a snap of a landscape type of scene.
I'd really like to take a look at the resulting DNG/JPEG in full size.
Long version:
I'm considering selling my Nexus 5 because the MF does not work (because of mechanical reasons) with my favorite apps "Manual Camera", "L Camera" or "Camera FV-5".
This GitHub issue comment explains why it doesn't work:
The problem relates to the fact that the focus system of the Nexus 5 is not calibrated, as the construction of the focusing system (a relatively simple spring with an electromagnet) does not allow for calibration. That means that the chip cannot know when it is on a certain position or not. If you point your phone downwards (i.e. you try to photograph your feet yourself while standing up) your phone will reach infinity (i.e. the spring will stretch farther), while pointing to the ceiling will be the worst case, and even when setting the focus position to infinity (manually) the focus will be farther away from infinity (the sprint contracts because of the lens weight). While autofocusing, the camera uses an iterative process to achieve focus, and do not rely on absolute positioning.
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My question now: will it work on the 5X, or does it suffer from the same hardware design fail? The Nexus 5X should be calibrated (says apps should be able to read "LENS_INFO_FOCUS_DISTANCE_CALIBRATION_CALIBRATED" from the Camera2 API), but right now I don't trust this information at all, since support for for basic Camera2 features in many handsets (even Googles "own") has been a big fail.
To be clear: I'm not interested in manually focusing flower macros. Manually focusing at objects at up to 1 meter or so works perfectly with the Nexus 5. It is focusing at things at a distance (or at infinity) that isn't working. I want to be able to snap pictures fast without engaging AF in a street setting (see hyperfocal distance) with the focus set to infinity. Phone cameras are well suited for this because their sensors are abysmal which results in a very deep DOF.
Thanks in advance!
@8fold Here you go...
PiousInquisitor said:
@8fold Here you go...
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Thank you!!! I'm sad to see that this picture isn't in focus though. I guess that means that Google has released yet another Nexus phone which is incapable of manual focusing. You can see what the picture should really should have looked like by turning on the AF and focusing at something distant in your scene.
I wonder though if it's possible to have a distant object in focus by setting the MF a little to the right of the mountains on the MF slider i FV-5. If there is a another position, even if it isn't "at the mountains icons", which allows distant objects to be in focus that wouldn't bother me much. If you, or somebody else, has the time/energy/curiosity to research it that would be marvelous.
If i buy a diferent sensor can i replace it and will it funcion normaly? Or would need some custom firmware?
Buying a different camera sensor will not work. First of all the contacts to attach it to the daughter board will be different. Secondly it probably won't fit in the cameras space and so would rattle. Thirdly the firmware wouldn't understand the output of the sensor. Sorry
if only android worked as proper os with modular drivers or should i say it's Qualcomm fault.... as far as my testing i think sensors on poco f3 are not bad at all it's the software that counts these days, if you can tweak gcam you can get good results in color reproduction and dynamic range and video quality as well, keep in mind that all phone camera systems have limitations and the best bet is getting a cheap used compact camera like lumix lx10 or sony rx100 or canon g7x.
dfps123 said:
If i buy a diferent sensor can i replace it and will it funcion normaly? Or would need some custom firmware?
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Someone tried a IMX686 (or IMX 682) from a K40 Pro in the standard K40(actually vice versa but the point still stands) and it will not work. If you can read chinese then watch this video. Basically the camera module can fit in the connector and can fit in the frame but it will not work both in standard and 48MP mode as the driver is missing.
venomus001 said:
if only android worked as proper os with modular drivers or should i say it's Qualcomm fault.... as far as my testing i think sensors on poco f3 are not bad at all it's the software that counts these days, if you can tweak gcam you can get good results in color reproduction and dynamic range and video quality as well, keep in mind that all phone camera systems have limitations and the best bet is getting a cheap used compact camera like lumix lx10 or sony rx100 or canon g7x.
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Nah the sensor is objectively awful, especially in low light conditions. My 3 year old MI 8 has a better sensor.
Camera sensors ranking
Camera sensors rating for different shooting conditions. Comparison list of image sensors used in phones, tablets and action cameras.
www.deviceranks.com
Stoffl_ said:
Nah the sensor is objectively awful, especially in low light conditions. My 3 year old MI 8 has a better sensor.
Camera sensors ranking
Camera sensors rating for different shooting conditions. Comparison list of image sensors used in phones, tablets and action cameras.
www.deviceranks.com
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Click to collapse
For me the sensor is like lightyears ahead of my old phone, that thing can't even take a low light photo without blur in 80% of scenarios. Probably because my standards are set so low that this sensor is amazing to me.
Stoffl_ said:
Nah the sensor is objectively awful, especially in low light conditions. My 3 year old MI 8 has a better sensor.
Camera sensors ranking
Camera sensors rating for different shooting conditions. Comparison list of image sensors used in phones, tablets and action cameras.
www.deviceranks.com
Click to expand...
Click to collapse
imx363 is a very good sensor even if it's lacking pixel banding but what make the difference is the lenses, tbh they used a higher quality one in mi8 compared to f3, also the lack of ois on f3 affects low light quality