Now that we have "In screen fingerprint scanners", which is literally a super-short focal length camera taking the picture of your fingerprints, would it not be feasible to have a similar setup for the selfie camera. The region in and around the selfie camera should work as a screen under regular use and switch off when in selfie mode.
Due to the function required for this to work, the screen will have to be OLED or related technologies that can switch off part of the screen with no pixels light up those areas.
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I'm trying to understand what makes a camera phone produce good quality pictures. Initially, I thought it was pretty much solely dependent on the camera itself: I have an HTC EVO 4G LTE and it's 8MP. I want even better picture quality so I was searching for phones that had more megapixels, since I assumed that more MP the better. But during my search, I saw more discussions centering around the camera software, and how that effects pictures, which I hadn't even known before. Can I just simply download a camera app and get better quality pictures, or will I have to get a new phone, or both?
Altom85 said:
I'm trying to understand what makes a camera phone produce good quality pictures. Initially, I thought it was pretty much solely dependent on the camera itself: I have an HTC EVO 4G LTE and it's 8MP. I want even better picture quality so I was searching for phones that had more megapixels, since I assumed that more MP the better. But during my search, I saw more discussions centering around the camera software, and how that effects pictures, which I hadn't even known before. Can I just simply download a camera app and get better quality pictures, or will I have to get a new phone, or both?
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Sort of. Megapixels are a measure of resolution, which is essentially how many mini-dots of color make up an image. One megapixel is the equivalent of 1,000,000 of those little dots, called pixels. They make up every digital screen you've ever seen. The more pixels an image has, the more detailed, and the the clearer it can be.
Now, there are some issues with large amounts of pixels in a small camera. One is that each pixel in the sensor must capture light, and the smaller they are, the longer they take to capture enough light for a well-lit, clear picture. That leads to the second main issue, which is blur. When the shutter time (amount of time that the camera sensor takes in the light that forms the picture) is long, you get a well lit, clear picture... provided the subject is stable, and your hand is too. If something moves, then the sensors see it both in it's initial - "true" - position, and every position in between where it ends up when your sensors stop taking in light. This causes blur. When the shutter time is short, blur is reduced, but pictures are darker.
So, yeah, the software you use is important. Some will use smart software to correct for blur, some will automatically brighten the image (Which reduces detail), and the best ones (IMO) let you set your own shutter time depending on what you're taking a picture of. For example, if you're watching a baseball game outside, you should set a very short shutter speed so that you minimize the amount of motion blur captured, but there should be plenty of natural light provided by the sun. If you're in a dim art gallery, you may want a longer shutter time, as you need the time for lighting, and nothing's going to be moving.
Creed14 said:
Sort of. Megapixels are a measure of resolution, which is essentially how many mini-dots of color make up an image. One megapixel is the equivalent of 1,000,000 of those little dots, called pixels. They make up every digital screen you've ever seen. The more pixels an image has, the more detailed, and the the clearer it can be.
Now, there are some issues with large amounts of pixels in a small camera. One is that each pixel in the sensor must capture light, and the smaller they are, the longer they take to capture enough light for a well-lit, clear picture. That leads to the second main issue, which is blur. When the shutter time (amount of time that the camera sensor takes in the light that forms the picture) is long, you get a well lit, clear picture... provided the subject is stable, and your hand is too. If something moves, then the sensors see it both in it's initial - "true" - position, and every position in between where it ends up when your sensors stop taking in light. This causes blur. When the shutter time is short, blur is reduced, but pictures are darker.
So, yeah, the software you use is important. Some will use smart software to correct for blur, some will automatically brighten the image (Which reduces detail), and the best ones (IMO) let you set your own shutter time depending on what you're taking a picture of. For example, if you're watching a baseball game outside, you should set a very short shutter speed so that you minimize the amount of motion blur captured, but there should be plenty of natural light provided by the sun. If you're in a dim art gallery, you may want a longer shutter time, as you need the time for lighting, and nothing's going to be moving.
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Wow, thank you for that very detailed answer Creed I understand this much better. So basically (let me know if I'm wrong here) a large number of MP won't make much of a difference if your software and settings suck? So, on average, what is a decent amount of MP? I have 8 right now on my HTC EVO 4G LTE. Can you also suggest a good camera app? Thanks very much in advance :good:
Hi, so here Is the question, it possible to disable OIS (optical image stabilization) somehow ?
In the camera settings, you can only disable the Digital Image Stabilization. But the Optical Image Stabilization is like a system of springs maintaining the camera lens that compensate the physical movement of the phone. So, you can't disable it, it's not software, it's hardware. The only way to "disable" it would be to open your phone, get access to the camera lens, and stuff things around the lens to hold it in place, or something like that.
Meshuggahblast said:
In the camera settings, you can only disable the Digital Image Stabilization. But the Optical Image Stabilization is like a system of springs maintaining the camera lens that compensate the physical movement of the phone. So, you can't disable it, it's not software, it's hardware. The only way to "disable" it would be to open your phone, get access to the camera lens, and stuff things around the lens to hold it in place, or something like that.
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That's incorrect. OIS is physical, but it's also electronic. It uses data from your phone's accelerometer (and possibly gyro) to determine when the handset has moved, and compensates by shifting the lens slightly using (I believe) tiny electro magnets, all within a fraction of a second. Just Google "how does OIS work?" and you'll find a decent explanation. Whether or not you can disable it is another matter.
Hello guys I have an issue related to camera can you guys please check if this is an issue or that's how it should work.
When you open camera on photo mode there are 3 modes to take a photo i.e primary camera, wide angle and telephoto for zoom.
Wide angle works fine and so does Primary camera.
Now if you put a finger on telephoto lense that is the lense next to led flash and switch to 3x zoom, it should use the telephoto lense but it uses Primary camera instead.
For a fraction of sec it tries to go to telephoto lense and switches to primary lense
However for portrait mode it uses telephoto without fail.
Don't put finger on the telephoto lense, switch to zoom, boom it works.
Now put finger on it. Hey, the camera app says, it's too dark you use the telephoto sensor, let's switch to normal one.
So: it works as expected. Not enough light = no telephoto sensor.
Pfeffernuss said:
Don't put finger on the telephoto lense, switch to zoom, boom it works.
Now put finger on it. Hey, the camera app says, it's too dark you use the telephoto sensor, let's switch to normal one.
So: it works as expected. Not enough light = no telephoto sensor.
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Cool, if that's the case it's smart af.
But that still doesn't justify 3x zoom with primary lense, is that digital crop in low light after all?
I'm gonna purchase this phone but need to know if you can zoom during video recording?
At basic 4K30 setting does it switch cameras/lenses when you use the zoom slider?
Short answer is: nope.
At 4K30, with the standard camera app, you can select one of three lenses: ultra wide (0.5x), standard (1x) or the zoom lens (5x). With each your then have the option to digitally zoom in during filming, with the ultra wide then ranging from 0.5 to 2x, with the standard going from 1x to 6x and with the zoom lens you start at 5x and can zoom in to 15x zoom max. A slider will be on screen to help you with that. It's all digital zoom, so don't expect picture quality to remain the same.
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This is bummer... Is it down to Xiaomi or it's the first phone with multiple cameras that can't switch on the fly during video recording ?!
OK that person is wrong. I zoom while recording all the time... I usually either use 720p to minimize file size or 4k60 for max quality. Maybe he's using the wrong mode.
My personal experience is exactly what Appelsap described. No way for me to switch cameras on the fly while recording video.
What about other apps like FIlmic PRO - do you have access to the other cameras?
In Filmic Pro I could only find the switch from back to front. Is there another way to access the other cameras?
So you can zoom, but only digitally using the same lens. You can't switch lenses to zoom even more during filming. I tested the 4K30 as was asked, didn't try other formats (720p/HD/8K) but expect the same result even then. Main issue would be that switching lenses would be noticable in the resulting film. The lenses are in a slightly different position on the phone - they have to be next to each other rather than on top of each other , so whilst zooming in or out you'd see the camera shift suddenly to a slightly different position. I doubt other multi-lens phones can switch camera's during filming, you'd notice it then too - but do correct me when I'm wrong and tell me how the software then solves the suddenly shifted perspective (or not).
Every other multicamera phone (as far as I know) is using different cameras (lenses) while video recording. My most current phone is Find X2 Pro and it is using all of the cameras, however they are not enabled in Filmic Pro, in comparison OnePlus 8 PRO is enabled and all cameras can be used in Filmic Pro but this is different topic.
So basically this is first high end camera centric phone that is unusable in video recording, what a shame... I will cancel my purchase then.....
My Find X2 Pro is the best package overall but I'm missing the 2x telephoto camera as there is quite a gap between the 25mm main camera and 130mm 5x periscope one.
Appelsap said:
So you can zoom, but only digitally using the same lens. You can't switch lenses to zoom even more during filming. I tested the 4K30 as was asked, didn't try other formats (720p/HD/8K) but expect the same result even then. Main issue would be that switching lenses would be noticable in the resulting film. The lenses are in a slightly different position on the phone - they have to be next to each other rather than on top of each other , so whilst zooming in or out you'd see the camera shift suddenly to a slightly different position. I doubt other multi-lens phones can switch camera's during filming, you'd notice it then too - but do correct me when I'm wrong and tell me how the software then solves the suddenly shifted perspective (or not).
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It's not only the perspective. Different cameras have different aperture, meaning different exposure. So if you pay attention, you will notice that - it gets darker when the phone switches to 5x camera. Don't know what cameras and aperture have the other phones but I'm extremely interested in an example video zooming from UW all the way to periscope and producing usable picture quality in 4k.
Just wanted to let you know that on latest EU weekly, the switches cameras on fly during video recording 1800p.
I also confirm that the video produced is not the best quality as expected - changing the camera changes the exposure and focus too.
For 4k it doesn't switch cameras.
neverthemore said:
Just wanted to let you know that on latest EU weekly, the switches cameras on fly during video recording 1800p.
I also confirm that the video produced is not the best quality as expected - changing the camera changes the exposure and focus too.
For 4k it doesn't switch cameras.
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Just tried it, and you are so right. At 1080p it does switch lenses during zooming (in/out), which is very noticable in the result, so why you'd want that is beyond me really. But it is possible. I'd like to see another phone do this without changes to exposure and focus, that seems very unlikely to me.
Hi
While making a video of close objects Whenever the system shifts to zoom lens the saturation increases and colors become over saturated.
I make videos of gems and stones. and for that purpose i bought this camera.
Especially the blue stones become too blue when i zoom in and zoom lens turns on.
Is there a way where we can select individual lens manually so that the zoom lens doesn't turn on unless I want it.
Try with turned of AI. If nothing changes after that I don't know what can you do.
When the device switching between camera modules maybe is normal to have problems with saturation. All three camera modules have different apertures and they receive a different amount of light.
The only solution that I found is by using the pro mode and setting the white balance manually when the zoom lens turns on. By doing that the camera keeps the selected saturation even when the lens gets changed.
This is what I think. Need to confirm it with different color items.
You guyz check it aswell.
I hope mate 40 doest have the same problem. Quite disappointing bug considering the price of the phone and camera quality.