Hey all,
Here's a pretty cool macro DSLR effect I discovered the other day. FINALLY a use for 4K video resolution!
All you have to do when in video mode is select 4k (3840 × 2160) and zoom in 4x. When close to a subject tap to focus as usual and you may be shocked that the image suddenly has crazy depth of field but still remains sharp.
The reason? The camera module has an aperture of f/2.2 which is great, but that's not the real clincher. 4K UHD has 8,294,400 pixels in a frame. Just to give you an idea 1080p is only 2,073,600 pixels. So basically, when you zoom in 4x, your image still looks great. No other phone camera can do this in 2013.
Big deal, SO WHAT? you may be thinking. Well the results CLEARLY speak for themselves..
Happy shooting!
James Harrison said:
Hey all,
Here's a pretty cool macro DSLR effect I discovered the other day. FINALLY a use for 4K video resolution!
All you have to do when in video mode is select 4k (3840 × 2160) and zoom in 4x. When close to a subject tap to focus as usual and you may be shocked that the image suddenly has crazy depth of field but still remains sharp.
The reason? The camera module has an aperture of f/2.2 which is great, but that's not the real clincher. 4K UHD has 8,294,400 pixels in a frame. Just to give you an idea 1080p is only 2,073,600 pixels. So basically, when you zoom in 4x, your image still looks great. No other phone camera can do this in 2013.
Big deal, SO WHAT? you may be thinking. Well the results CLEARLY speak for themselves..
Happy shooting!
Click to expand...
Click to collapse
Are you saying that if you record in 1080p mode and framed the shot exactly the same, that the depth of field would not be the same? I'm confused?
I understand the merits of 4K recording, but I don't see how the depth of field would be affected.
WOW! Cant believe all that comes from the small lens sensor of Note 3
Sent from my SM-N9005 using Tapatalk
Maverick777 said:
Are you saying that if you record in 1080p mode and framed the shot exactly the same, that the depth of field would not be the same? I'm confused?
I understand the merits of 4K recording, but I don't see how the depth of field would be affected.
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Click to collapse
I probably should have explained this better but you can't really frame the same shot in 1080p because you'd be way too close to the subject for the camera to even attempt to focus on it. 4k allows much more flexibility for macro shots.
And do you have a 4K display to see this awesomeness?
Otherwise you're just watching it at 1080p lol.
James Harrison said:
I probably should have explained this better but you can't really frame the same shot in 1080p because you'd be way too close to the subject for the camera to even attempt to focus on it. 4k allows much more flexibility for macro shots.
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Click to collapse
Now I'm curious how 4K video zoomed in 4x downscaled to 1080p compares to 1080p video zoomed in 4x. I wonder if Samsung is using software zooming to enlarge the video image or cropping the sensor to achieve the field of view. If it's software zoom then there's obviously going to be a loss in quality. But if it's simply cropping the sensor there should be no difference. And it fact it'd be a waste of time and memory space to shoot in 4k zoomed to 4x and then having to downscale it to 1080p afterwards. That would add unnecessary steps for editing. Also, in 1080p mode you have access to the software video stabilization while in 4k mode you don't.
it's not about the resolution lol. think putting on different DSLR lenses for your phone.
great find, OP! will be trying this soon
4k works with approx 50% more colours than normal 1080p. Even if you dont have a tv to warch it in full res, a 4k clip will look and FEEL rather different than everything else.
The clip in the above link is done with a little bit of postproduction. Indeed its impressing and there is more to be discovered.
_madness haven't any rest, only swet_
CorruptedSanity said:
And do you have a 4K display to see this awesomeness?
Otherwise you're just watching it at 1080p lol.
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Click to collapse
lol, it's not about the resolution. it's kinda like being able to use different lenses for your note 3.
great find, OP. thanks!
Maverick777 said:
Now I'm curious how 4K video zoomed in 4x downscaled to 1080p compares to 1080p video zoomed in 4x. I wonder if Samsung is using software zooming to enlarge the video image or cropping the sensor to achieve the field of view. If it's software zoom then there's obviously going to be a loss in quality. But if it's simply cropping the sensor there should be no difference. And it fact it'd be a waste of time and memory space to shoot in 4k zoomed to 4x and then having to downscale it to 1080p afterwards. That would add unnecessary steps for editing. Also, in 1080p mode you have access to the software video stabilization while in 4k mode you don't.
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Cropping a sensor of say a 35mm legs by 1.6 doesn't give you a 56mm zoom perspective. You're still getting a relatively wide angle shot but simply cropped.
CorruptedSanity said:
Cropping a sensor of say a 35mm legs by 1.6 doesn't give you a 56mm zoom perspective. You're still getting a relatively wide angle shot but simply cropped.
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Click to collapse
I understand that. However, in this instance is 1080p mode on the Note 3 simply cropping the sensor to begin with? My question in relation to the OP is if you shoot at 4K mode, zoom in a 4X, is the phone simply cropping the sensor 4x to give you a lossless zoom? Or it is using some type of software pixel binning to give you the zoomed in view? Or perhaps a combination of both.
And how does that compare to shooting in 1080p mode with the 4x zoom?
I took a few sample videos sitting at my desk and to my naked eye viewing both videos on the Note 3's screen, there is 0 difference between shooting at 4K resolution with a 4x zoom and shooting at 1080p at 4x zoom other than the file size. The field of view is identical. I'm looking to see if there's any advantage at the end of the day if I want to end up with a 1080p file as the end product. Is there any advantage to shooting the same field of view at 4K and downscaling?
The 4x zoom when shooting at 4K did not give me a distance advantage versus shooting 1080p at 4x zoom. The phone remained at the same distance as my subject when framing the shot with the same field of view. So for macro video shots, I do not appear to have any advantage when shooting at 4K.
Epic and very well done video!
Sent from my SM-N9005 using Tapatalk
James Harrison said:
I probably should have explained this better but you can't really frame the same shot in 1080p because you'd be way too close to the subject for the camera to even attempt to focus on it. 4k allows much more flexibility for macro shots.
Click to expand...
Click to collapse
I think what he's saying is that no matter of 1080p or 4k, distance and senzor pixels are the same, therefore theoretically you shouldn't necessarily have to do 4k to do such zooming. Question is: in effect does zooming in 1080p still record lossless as far as the sensor goes (13mil pixels), or zooming in 1080p only zooms into the 1080p capture (magnifies the 2mil pixels).
Maverick777 said:
I understand that. However, in this instance is 1080p mode on the Note 3 simply cropping the sensor to begin with? My question in relation to the OP is if you shoot at 4K mode, zoom in a 4X, is the phone simply cropping the sensor 4x to give you a lossless zoom? Or it is using some type of software pixel binning to give you the zoomed in view? Or perhaps a combination of both.
And how does that compare to shooting in 1080p mode with the 4x zoom?
I took a few sample videos sitting at my desk and to my naked eye viewing both videos on the Note 3's screen, there is 0 difference between shooting at 4K resolution with a 4x zoom and shooting at 1080p at 4x zoom other than the file size. The field of view is identical. I'm looking to see if there's any advantage at the end of the day if I want to end up with a 1080p file as the end product. Is there any advantage to shooting the same field of view at 4K and downscaling?
The 4x zoom when shooting at 4K did not give me a distance advantage versus shooting 1080p at 4x zoom. The phone remained at the same distance as my subject when framing the shot with the same field of view. So for macro video shots, I do not appear to have any advantage when shooting at 4K.
Click to expand...
Click to collapse
BoneXDA said:
I think what he's saying is that no matter of 1080p or 4k, distance and senzor pixels are the same, therefore theoretically you shouldn't necessarily have to do 4k to do such zooming. Question is: in effect does zooming in 1080p still record lossless as far as the sensor goes (13mil pixels), or zooming in 1080p only zooms into the 1080p capture (magnifies the 2mil pixels).
Click to expand...
Click to collapse
I just assumed that zooming in ALWAYS "magnified" the pixels so you'd naturally just get sharper detail with the 4k mode. I now understand my error with the field of view though (I tried it out myself too)
I guess the main thing to take home is the amount of detail you're getting from this phone's sensor.
Related
Hi Guys,
I asked myself how the zoom on my Z3 should work.
As far as I know, the Z3 can Zoom into the sensor while taking 8mpix pictures.
While I tried it, it seemed to me that the quality gets really bad.
I was guessing that the indicator on the left is the indicator which separates digital zoom from the sensor-zoom.
As far as I thought the light grey indicator-bar shows the part which is the sensor zoom and the dark part is the digital zoom.
Considering the quality it seems to me that both modes are digital zoom. The picture looks really annoying while i use it.
I just thought maybe I'm doing something wrong - has anyone an idea how I can improve this or use it right or or or...
Regards,
Matthias
I didn't know about the 8mp restriction, i also tested it out in the shop, but in 20mp mode. The sections looked identical. However, as the sensor is not at it's limits at 8mp, i guess it could take a higher resolution and crop it to 8mp size at the zoomed in section.
Auto mode enables you to use the camera's Clear Zoom feature, which produces good-looking, lossless-like digital zoom.
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Click to collapse
the image is stretched by the software, which then attempts to fill in the blanks as best as it can. Well, thanks to the giant sensors on the Nokia Lumia 1020 and Sony Xperia Z1/Z1 Compact, zoom is no longer a problem. But instead of opting for bulky zoom lens (Galaxy S4 Zoom), they both rely on their massive resolution in order to get what we call 'lossless' zoom.
So what's lossless zoom, then? In simple terms, it means that zooming into a scene will only result in a negligible loss in quality. Think of it this way: there are so many pixels available with a camera like the one on the 1020 that you can 'crop' any part of the photo and still have more than enough pixels for a full-sized photo that will appear zoomed in. No upscaling, and no loss of quality. But how does it work in practice?
Click to expand...
Click to collapse
More info about everything
http://www.phonearena.com/news/What...-work-in-the-Lumia-1020-and-Xperia-Z1_id52198
So conclusion is, it is all digital zoom
electrash said:
More info about everything
http://www.phonearena.com/news/What...-work-in-the-Lumia-1020-and-Xperia-Z1_id52198
So conclusion is, it is all digital zoom
Click to expand...
Click to collapse
Okay, it is something like digital zoom. But I think, the quality while zooming into an 8mpix picture should not be worse in quality (depending on the zoom factor) than the 20mpix picture.
When I take a 8 mpix picture, I assume that the image processor will take it in 20mpix and shrink it down to 8.
And what I would like to see is that
I could zoom in and it will just move into the sensor to a 1:1 size.
Another thing : while using the video mode, the stabilizer does an amazing job.
What about the photo-mode? I can't see any stabilisation there.
Since I only take 8mpi pictures, I guess the picture-frame could also be panned around the 20m of the sensor...
Regards,
Matthias
Maeffjus said:
Okay, it is something like digital zoom. But I think, the quality while zooming into an 8mpix picture should not be worse in quality (depending on the zoom factor) than the 20mpix picture.
When I take a 8 mpix picture, I assume that the image processor will take it in 20mpix and shrink it down to 8.
And what I would like to see is that
I could zoom in and it will just move into the sensor to a 1:1 size.
Another thing : while using the video mode, the stabilizer does an amazing job.
What about the photo-mode? I can't see any stabilisation there.
Since I only take 8mpi pictures, I guess the picture-frame could also be panned around the 20m of the sensor...
Regards,
Matthias
Click to expand...
Click to collapse
In SA mode, phone take oversampled photo (which means he take 21mp, but he make HD pixel (one pixel combine colors from neibghours)... so when you take 8mpx it takes 20mp ovesampled.
When you zoom in, it will take more and more neibhours pixel to combine in one, so that means loseless.
Hi,
I want to buy a P20, however I'm curios if the main camera has OIS. Gsmarena says it does, however other sites don't mention anything.
So, does it or does it not ?
Thanks !
i doubt that. in movies mode there is only EIS.
g_oral said:
i doubt that. in movies mode there is only EIS.
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Click to collapse
False. 1080 30fps and all still photos are optically stabilized.
1080 60fps has Electronic Stabilization. 4k has none.
zgomot said:
False. 1080 30fps and all still photos are optically stabilized.
1080 60fps has Electronic Stabilization. 4k has none.
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Click to collapse
go to 1080p 30fps (stabilisation) mode and than change to 1080p 60fps (no stabilisation) you will se that in 30fps you see less on the screen because the phone is making crop for the EIS stabilisation. if there were an OIS the frame in 30fps and in 60fps should be the same.
g_oral said:
go to 1080p 30fps (stabilisation) mode and than change to 1080p 60fps (no stabilisation) you will se that in 30fps you see less on the screen because the phone is making crop for the EIS stabilisation. if there were an OIS the frame in 30fps and in 60fps should be the same.
Click to expand...
Click to collapse
Check out any disassembly video, you will see the cameras have OIS. They physically move.
You see less of the screen because it crops from a 4:3 format in photo mode, to a 16:9 format in video.
zgomot said:
Check out any disassembly video, you will see the cameras have OIS. They physically move.
You see less of the screen because it crops from a 4:3 format in photo mode, to a 16:9 format in video.
Click to expand...
Click to collapse
Ok if you have seen the module thats ok.
I'm seeing the crop change switching between the video modes.
See my post here if anyone is interested in higher resolution EIS on the p20. Works on mine at 3k resolution.
https://forum.xda-developers.com/hu...resolution-t3776382/post76617559#post76617559
I do not think the camera has OIS, or it has OIS but it is not enabled.
Looking with a flashlight in an iphone 7 camera, I can see the lens moving to compensate for the shakiness, however looking with a flashlight in the Huawei's lens, I cannot see the camera move in any direction ... So, no OIS here
I think it has AIS which is digitally stabilised by the AI.
Strange is that the iphone 7 only uses OIS for video ... If I switch to photo, the lens stops moving ...
There is no teardown video for the P20 which shows the camera module's inner parts moving. Can anyone confirm the OIS with any evidence? I think it might be there, but not enabled for sure.
stabilization is so good with 30fps videos in daylight situation but when it comes to artificial and low light situation, videos are so jerky when we take a walk and the video is pretty unusable. oneplus has provided OIS but we don't even have the proper control over it. it is used only for 60fps videos. wouldn't it have been better if we had the option to use OIS or EIS according to our liking? like we can choose OIS during artificial and low light conditions. By this, we can have OIS instead of no stabilization/unusable videos. am i the only one who felt that the videos are full of jerks and is unusable?
Hello, I've been an XDA lurker for a while, starting with my Galaxy S4. I just recently got a OnePlus 6, and love it so far, but this one problem is kind of irritating me.
When using the front camera (both in the camera app when not set to 4:3, and third party apps like snapchat), the picture looks very zoomed in). I'm guessing its because any other ratio is just a cropped version of 4:3.
The only way I can think to fix this is to force a different ratio for the camera to use, but I'm not sure if that is even possible.
Anyone else have this type of problem? Help would be much appreciated.
I think its because the lense has a higher focal length... Nothing to do with ratio.
So is there any way to work around this so that the front image isn't so zoomed in?
For video? It's because of their stabilization
NateDev said:
For video? It's because of their stabilization
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I mean in the pictures. Like if you're taking a selfie, the viewfinder shows the image as very zoomed in (like your face covers the image if you're a normal distance away), and the picture is taken like that.
When you shoot with 4:3 you have all the picture of the sensor. When you shoot with 16:9 or other you don't use all the sensor but it crops the image to be in that ratio. And you see the zoom. Take a picture with 4:3 and zoom with your fingers to see a picture of 16:9 shot. It's the same.
OnePlus 6
So far liking the new 7p, havent seen any crazy battery drain or anything yet.
Camera can shoot 30x pics but only 20x video... any idea why? Tried changing settings (1080p, 30fps) to no avail.
Wonder why we cant shoot HDR in 60fps either...
Can the 6p do these?
Thanks
Likely due to lack of light and/or processing power. The 7 Pro uses the telephoto lens that can do 5x and 10x with a 1:1 crop. Everything between or beyond those steps get processed with data from the main sensor and the new Super Resolution AI. Considering it can do 30x for a single frame. Mediocre 20x for 30/60fps is seems fine for video.
I am also miffed about not having HDR at 60fps especially since we can now do full zoom on FHD/UHD unlike the 6 Pro getting locked out of 60fps for UHD 4x zoom.