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.
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hello everyone
I am working on a project requiring me to produce IR images from a cell phone camera. I understand that in most cell phone cameras, the IR light is filtered out to produce better pictures in the visible light. Does anyone know if this is done by putting a physical filter in of the optical path, or it is removed as an image process?
Also, I managed to open one cell phone I have and it looks to me the camera is a single CCD chip with a glass housing on top of it. Does anyone know if there is any online tutorial to show me how to dissemble the camera if a hardware modification is needed?
a third question, what are the companies that produced these CCDs for cell phones? I am particularly interested in the ones supply for iphone or newer android smartphones.
thanks
I've yet to come across a phone camera which filters out IR.
They're very handy for checking if car plips/TV remotes are working.
I've seen howto's on removing the ir filter on USB webcams. Some are simple "remove this and a little ir filter sheet will fall out" and some require grinding away at the lens and then repolishing. Good luck on your camera project, hope you find out good news like xaccers suggests.
The camera on smartphone is just a single unit with sensor and lens together, disassembling is quite a task or does it even contain the filter?
Try using a TV remote or any other infrared device in front of the smartphone camera.
No,there is no IR filter on smartphone's cameras pal.
Look at this video and see that there is a second light on that Desire HD at the place of the proximity sensor,which emits IR I think.Plain proof that there is no filter.
im am sorry to say that you are all wrong. all digit cameras including cell phone cameras have IR filters.
they are there to reduce IR light not block it. this is why you are able to see flashing IR leds on remotes. by removing the filter though the leds would be far brighter.
IR light washes out images on ccd and cmos sensors the the filters are in place to reduce this effect.
but as once mentioned it will be quite difficult to remove from a mobile sensor as the lenses sit within the autofocus chamber and would probably be damaged during removal.
yup totally correct.. the ir filter is with in the lense/autofocous chamber and will most likely ruin the sensor if you try to remove it. i tried it on the s7. had to buy replacement camera. in older smartphone cameras the ir filter was easier to remove.. lates phone cameras the ir filter is sandwich between lenses chamber an sensor.
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:
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.
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.
Verstuurd vanaf mijn M2007J1SC met Tapatalk
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.
Good morning! From the moment I bought this device, I noticed that the noise reduction behaves too aggressively. Since some time, it has become more aggressive, it is impossible to shoot something with a macro lens (an example is attached below), it is easier to take a screenshot of the camera. On the main lens, the situation is better, but only in ideal conditions. What can be done about it? Without root, as I understand it, I can’t cope, and Samsung support does not see the problem, they write that it should be so.
Try turning off scene optimizer.
Get closer to the subject (not responsible if it jumps at you).
Shoot at a lower iso or in brighter light.
Shoot in raw mode if you have this option.
blackhawk said:
Try turning off scene optimizer.
Get closer to the subject (not responsible if it jumps at you).
Shoot at a lower iso or in brighter light.
Shoot in raw mode if you have this option.
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A53 don't shoot in raw (cam2api limited cmn)
All enhancements are disabled. Problems in image post-processing, noise reduction behaves too aggressively. In night shots, for example, you can’t see digital noise, but you can see the results of processing work - objects merge into a mess.
Enot-XD said:
Good morning! From the moment I bought this device, I noticed that the noise reduction behaves too aggressively. Since some time, it has become more aggressive, it is impossible to shoot something with a macro lens (an example is attached below), it is easier to take a screenshot of the camera. On the main lens, the situation is better, but only in ideal conditions. What can be done about it? Without root, as I understand it, I can’t cope, and Samsung support does not see the problem, they write that it should be so.
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install manually the latest firmware, has some fixes in performance and camera
Enot-XD said:
A53 don't shoot in raw (cam2api limited cmn)
All enhancements are disabled. Problems in image post-processing, noise reduction behaves too aggressively. In night shots, for example, you can’t see digital noise, but you can see the results of processing work - objects merge into a mess.
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There's Gcam too.