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Hi,, i need some help to understand what iso does to photo
Can some one please explain
What does100, 200, 400, 800, 1600 iso do?
And what settings to use indoors and night
sent from my white xperia z
mr_negative16 said:
Hi,, i need some help to understand what iso does to photo
Can some one please explain
What does100, 200, 400, 800, 1600 iso do?
And what settings to use indoors and night
sent from my white xperia z
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Click to collapse
ISO is the light sensitivity of the image sensor. The higher the number, the more light sensitive the image sensor becomes. In low light, you'll want the sensitivity to be higher so that the image can be captured faster, especially if the object is moving (otherwise the "shutter speed" is too long and all you'll get is a giant blur). The trade-off with increased sensor sensitivity is noise (in film terms, it would be called film grain). Pictures taken with high ISO will have less clarity and the color will not be as true. Ideally, an ISO of 100 will provide the best looking shots.
Simply put, leave it at 100 for an outdoor picture of a relatively still object. Increase ISO as the light decreases and the subject increases movement.
-Mike
mr_negative16 said:
Hi,, i need some help to understand what iso does to photo
Can some one please explain
What does100, 200, 400, 800, 1600 iso do?
And what settings to use indoors and night
sent from my white xperia z
Click to expand...
Click to collapse
to make it easier to understand,
ISO 100 = best quality, lowest noise, slowest shutter time, used in bright environment
ISO 1600 = worse quality, highest noise, fastest shutter time, used in low light environment
however you don't always have to use ISO 1600 when taking picture in low light environment,,
since you got flash to slightly enhance the shutter time.
my htc one camera is too noisey
is this normal for all or only me
is there any settings to make photos better
Post some example shots, and I would be more than happy to compare them to my experiences!
Nightf0x_007 said:
my htc one camera is too noisey
is this normal for all or only me
is there any settings to make photos better
Click to expand...
Click to collapse
By "too noisey", if you mean like what people got in here: http://forum.xda-developers.com/showthread.php?t=2317507 , then you better just post in there.
Sent via HTC One™ using Tapatalk 4
You must realize, that the sensor is not a Full Frame one, so if you use high ISO sensitivity, it produces noise. Even my D7000 produces such noise when the ISO is cranked up in low light.
We gave our Nexus 5 in the hands of a photographer (friend of mine) for a month, and this is what we get!
Very impressive!
http://www.androidworld.it/2014/01/...i-di-un-fotografo-il-nostro-test-foto-209321/
cisoprogressivo said:
We gave our Nexus 5 in the hands of a photographer (friend of mine) for a month, and this is what we get!
Very impressive!
http://www.androidworld.it/2014/01/...i-di-un-fotografo-il-nostro-test-foto-209321/
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Knowing a thing or two about taking picture taking results in some impressive pictures.
Whodathunkit!
Cirkustanz said:
Knowing a thing or two about taking picture taking results in some impressive pictures.
Whodathunkit!
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Click to collapse
yup
There's some pretty severe pink-camera-problem going on in the center of most of the photos.
Wow, these look great.
Getting excited to see if I'll be able to get shots which look are remotely as good
and you had to get a photographer for those shots? :laugh:
anyways, OP has "generating clicks" written all over it.
Nice shots! I especially like how well OIS works on the n5 when taking videos too, much better than the n4.
PoisonWolf said:
There's some pretty severe pink-camera-problem going on in the center of most of the photos.
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I think that issue is pretty common these days, you camera might even produce those with the very same conditions.
Nice Pic's, probably could have been a litter better if it was from a White N5
Grande ciso!
EarlZ said:
I think that issue is pretty common these days, you camera might even produce those with the very same conditions.
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Click to collapse
My N4 has it as well, I agree, but not to the extent as observed in those photos.
ghettopops said:
Nice Pic's, probably could have been a litter better if it was from a White N5
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O_O explain
biscuitownz said:
O_O explain
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Auto correct. Little. White N5's are better than the black ones
ghettopops said:
Auto correct. Little. White N5's are better than the black ones
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How are they a little better?
cisoprogressivo said:
We gave our Nexus 5 in the hands of a photographer (friend of mine) for a month, and this is what we get!
Very impressive!
http://www.androidworld.it/2014/01/...i-di-un-fotografo-il-nostro-test-foto-209321/
Click to expand...
Click to collapse
I am assuming that your friend bit**ed and moaned about the lack of manual shutter speed and aperture control, default camera app (awful), and in general lack of a manual mode (which is how most pros shoot- manually setting everything).
Disclaimer: I'm a photographer (not the 'I have a DSLR and use AUTO mode and press this thingy' photographer, the 'I have my own successful business' kind) and the lack of manual shutter & aperture is beyond frustrating to me. Sure there are (mostly worthless) apps that give you some control of ISO, WB, burst mode, etc., but without those vital exposure controls (shutter and aperture) to me all smartphone cameras will suck.
I know, I know. It's not a pro level slr... it's a phone...
Of course having stunning locations always helps.
anactoraaron said:
I am assuming that your friend bit**ed and moaned about the lack of manual shutter speed and aperture control, default camera app (awful), and in general lack of a manual mode (which is how most pros shoot- manually setting everything).
Disclaimer: I'm a photographer (not the 'I have a DSLR and use AUTO mode and press this thingy' photographer, the 'I have my own successful business' kind) and the lack of manual shutter & aperture is beyond frustrating to me. Sure there are (mostly worthless) apps that give you some control of ISO, WB, burst mode, etc., but without those vital exposure controls (shutter and aperture) to me all smartphone cameras will suck.
I know, I know. It's not a pro level slr... it's a phone...
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Click to collapse
While I agree with you that the default camera app is incredibly awful and lacks many controls, mobile phones are replacing point and shoot cameras, not DSLRs or micro 4/3. Also, most people use photos nowadays for stupid web shots/social/ready-made-filters etc and not for printing or cropping and zooming for the perfect frame.
I replaced my Cannon P&S since I had the HTC One X two years ago, but no mobile will ever replace my Fuji X-A1
anactoraaron said:
(which is how most pros shoot- manually setting everything).
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I don't disagree with you on anything but this - most modern SLR pros I know (less than 100, but many more than 10) do NOT shoot all manual. Most may shoot A-priority or S-priority, or use P mode and wheel their way to the desired blend, but only landscape, product or portrait shooters really can practically go all manual, all the time - you need non-moving subjects and somewhat consistent lighting to rock all manual and get a decent return on your shots.
And let's be fair, manual shooting modes do not make better pictures: better photographers make better pictures.
mr.r9 said:
While I agree with you that the default camera app is incredibly awful and lacks many controls, mobile phones are replacing point and shoot cameras, not DSLRs or micro 4/3. Also, most people use photos nowadays for stupid web shots/social/ready-made-filters etc and not for printing or cropping and zooming for the perfect frame.
I replaced my Cannon P&S since I had the HTC One X two years ago, but no mobile will ever replace my Fuji X-A1
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I know this and agree with you entirely, but I do have an old Polaroid P&S that allows me to set the shutter speed (like from 1/30-1/200, but no aperture control) and that thing is 5+ years old now. But yeah, the need to own a P&S is mostly non-existent with how good smartphone cameras are getting now. It still wouldn't stop me from griping about the things I mentioned if someone gave me a smartphone to take photos with the expectation of delivering pro quality work though (OP was 'I gave my phone to my pro friend to see what he/she could do').
big_adventure said:
I don't disagree with you on anything but this - most modern SLR pros I know (less than 100, but many more than 10) do NOT shoot all manual. Most may shoot A-priority or S-priority, or use P mode and wheel their way to the desired blend, but only landscape, product or portrait shooters really can practically go all manual, all the time - you need non-moving subjects and somewhat consistent lighting to rock all manual and get a decent return on your shots.
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Click to collapse
The only problem I have with P, A, and S priority modes is the reaction time of the camera to lighting conditions - especially outdoors. I particularly have an issue with P mode as most cameras seem to want a neutral/balanced shutter and aperture - like 1/60 @ f8 - whereas I may want 1/125 or faster @ f4.5-6.3 - and it gets worse outdoors (like wanting 1/160 @ f25 instead of 1/800 @ f8 etc) almost necessitating use of S mode if auto operation is desired. It also seems to take too long sometimes for the camera to read the amount of light and adjust the exposure (shutter speed in A mode or aperture in S mode) correctly. Shooting in manual mode for me is easier and better for me as I can read the light and pick a proper shutter, etc. based on conditions where I am shooting without having to worry about being occasionally slightly too bright (concern for a loss of detail being washed out) or too dark (where softness/pixelation comes into play).
But I suppose how you use your camera will vary on what you are taking pictures of. My gripe with the Nexus 5 is that with adequate lighting indoors and having the flash on auto the camera seems to always want to take pictures with the flash off at 1/10 or 1/20 @ f10 ISO ~400 or something like that, and that's just no good with really anything especially pictures of the kids. Why can't I at least just set the shutter? So many blurry pics... I thought there would be more emphasis on getting the camera experience better on a Nexus phone... the sad thing is that the hardware is actually really good for a phone but sadly the software side is woefully behind :crying:
And let's be fair, manual shooting modes do not make better pictures: better photographers make better pictures.
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Absolutely correct.
I always love these posts,
I have been an on again off again professional photographer for over 10 years mostly in industrial photography.
Even once owned an online photography magazine with pros writing articles from around the world.
My first thought is that it never really has much to do with the camera, its the photographer that stands behind this.
The best example I can give you of this, is the gear snobs that say you can't use mirror-less cameras in the professional setting.
Just grab a pro photographer give them a Nikon V1 or a Olympus OM-D and let them go shooting for a day.
As far as not having P/S/A/M modes, it's a phone....
1 in 100 000 people will even know what that is and about a third of those will actually know how to use it.
If we want to talk camera geek for a moment.
Sensor size is 1/3.2″
Aperture is f2.4 (fixed Aperture)
Max iso is 100 - 800
What does this mean?
Low light shots will still be grainy (Tiny sensor doesn't collect enough light)
The Lens is equivalent to about 28mm which if you have a Canon Rebel or a Nikon DXXXX camera it works out to the 18mm on a kit lens.
So why no manual control?
Well with a fixed aperture of 2.4 what can you change?
Well if you know cameras there is something called the exposure triangle, all this means is aperture, shutter speed, iso have to line up just right for an image to be exposed correctly. In A (aperture priority) you only control aperture and iso, S (shutter priority)you only control shutter and iso, and M you control everything. If you can't change the aperture then you can't use these modes.
Any app that says it gives you control of these things are just simulated.
Every photographers favorite word.... Bokeh!
The blur in the background, how to get it on a phone.
First we have to look at two things the 28mm lens and the tiny sensor. The smaller the sensor does not help at all in this case and nether does the focal length. To get Bokeh with your phone you have to get really really close to your subject almost as if your taking a macro shot.
One more trick for you guys if your still reading this, the camera phone is not ideal for taking portraits.
The reason why is at 28mm you get barrel distortion that pulls the center of the image towards the viewer. You can give people longer than usual noses and get strangeness going on. If your going to take a portrait of a person, instead of taking a close up on the face back up a bit. It will help hide this distortion.
Wow didn't mean for this to come out this long but I am at work, and bored.... lol
I wanna ask how can redmi note 7 have 48mp camera but snapdragon 660 only can afford until 25mp
It's fake 48mp which made by ai algorithm, you need to wait for pro version if you want the real 48mp.
But redmi 7 pro maybe use snapdragon 710 and still snapdragon 710 cant afford for 48mp
Kent Nathanael said:
I wanna ask how can redmi note 7 have 48mp camera but snapdragon 660 only can afford until 25mp
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Click to collapse
Probably it uses a custom ISP from sony (IMX 586) and not using the integrated one in the SoC
Kent Nathanael said:
I wanna ask how can redmi note 7 have 48mp camera but snapdragon 660 only can afford until 25mp
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Click to collapse
What the Samsung's sensor do, it's they stick 4 tiny pixels into one big pixel, for brightness in the images, actually there is a 12mpx camera but the result it's from a 48mpx resolution. You can look into it.
It's NOT a fake 48 mp camera. Let me explain,
The camera has physical 48million pixels , same as Sony imx586(used in redmi note 7 pro).
But let's see what's the catch about 12mp thing.
So as i said earlier, SAMSUNG GM1 SENSOR(used in redmi note 7) actually has physical 48million pixels.
What it does is, it treats every 4 pixels as 1 bigger one. So that means when we have 48(million) pixels. And 4 pixels will be bind together and made 1.
Result is we get 12(million) pixels in resulting pic.
Now this is done to get more bright images, so that each Pixel of image can get more light.
https://www.youtube.com/watch?v=prJnWBNFQnY
48MP Camera on Redmi Note 7 explained by C4ETech
it's the same trick used with Xiaomi's latest 20MP or 24MP front facing sensors. it combines 4 pixels into 1 bigger pixel (this is called pixel binning). for example: if you install a custom ROM on the Poco (which has a 20MP front facing camera), it will register as only 5MP, but in reality, you actually capture 20MP, combined into a 5MP picture, this tech helps with low light and creating brighter images.
so basically: the SoC registers the sensor as 12MP, but its truly 48MP.
Kent Nathanael said:
I wanna ask how can redmi note 7 have 48mp camera but snapdragon 660 only can afford until 25mp
Click to expand...
Click to collapse
1) 25mp is for single camera not for dual
2)It can't, the camera is just an interpolated version of a 12mp sensor thats all. Its just an edit
sssaini007 said:
It's NOT a fake 48 mp camera. Let me explain,
The camera has physical 48million pixels , same as Sony imx586(used in redmi note 7 pro).
But let's see what's the catch about 12mp thing.
So as i said earlier, SAMSUNG GM1 SENSOR(used in redmi note 7) actually has physical 48million pixels.
What it does is, it treats every 4 pixels as 1 bigger one. So that means when we have 48(million) pixels. And 4 pixels will be bind together and made 1.
Result is we get 12(million) pixels in resulting pic.
Now this is done to get more bright images, so that each Pixel of image can get more light.
Click to expand...
Click to collapse
yah i also think like you but some youtuber in my country they explanted that redmi note 7 would has a small cache to process images
As long as i can take great low light photos i am ok with it.
cwr250 said:
It's fake 48mp which made by ai algorithm, you need to wait for pro version if you want the real 48mp.
Click to expand...
Click to collapse
That sounds like ?️
Processor
Redminote 7 PRO wil be released with Snapdragon 675 Soc
majidamiri15300 said:
it's the same trick used with Xiaomi's latest 20MP or 24MP front facing sensors. it combines 4 pixels into 1 bigger pixel (this is called pixel binning). for example: if you install a custom ROM on the Poco (which has a 20MP front facing camera), it will register as only 5MP, but in reality, you actually capture 20MP, combined into a 5MP picture, this tech helps with low light and creating brighter images.
so basically: the SoC registers the sensor as 12MP, but its truly 48MP.
Click to expand...
Click to collapse
I don't think this is fully true
Poco video selfie is just so dark like no native binning at all. This is different to the big pixel like on mi5.
support
harysviewty said:
I don't think this is fully true
Poco video selfie is just so dark like no binning at all. This is different to the big pixel like on mi5.
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Click to collapse
I don't think there is a phone currently that does pixel binning in video, now it's just done in photo.
Binning adds the the brightness of 4 pixels and merge then into a bigger number.
(example: 4 pixels have brightness values of 3,4,5,3 the binned number is 15(3+4+5+3), meaning that pixel is brighter, if it were averaged, it would have had a value of 3.75 ((3+4+5+3)/4) and it's not bigger than the original pixels values, meaning no brightness improvement)
(the real process of binning pixels is actually much more complicated, and simple addition may not be done)
While in video the brightness of individual is averaged(not binned) with neighbouring pixels to make 30 1080p (2.1 Mp) photos per second.
If someone understands the process of real pixel binning, then correct me if i am wrong.
JoraForever said:
I don't think there is a phone currently that does pixel binning in video, now it's just done in photo.
Binning adds the the brightness of 4 pixels and merge then into a bigger number.
(example: 4 pixels have brightness values of 3,4,5,3 the binned number is 15(3+4+5+3), meaning that pixel is brighter, if it were averaged, it would have had a value of 3.75 ((3+4+5+3)/4) and it's not bigger than the original pixels values, meaning no brightness improvement)
(the real process of binning pixels is actually much more complicated, and simple addition may not be done)
While in video the brightness of individual is averaged(not binned) with neighbouring pixels to make 30 1080p (2.1 Mp) photos per second.
If someone understands the process of real pixel binning, then correct me if i am wrong.
Click to expand...
Click to collapse
Lg v30 V35 g7 v40 have super bright mode video, 2x2 4in1 pixel binning in video (4K becoming full HD), + there's adaptive fps for lowlight
HTC has multiframe subsampling processing for lowlight noiseless video
Sony has dual camera sensor fusion (normal & bw) for super high iso lowlight video
No, you're wrong
Binning isn't always about 1+2+3+4= 10, it can also be like 1+2+3+4=10 :4= 2.5 (PureView) or 1+4+4+5=4 or 1+2+3+4=1/2/3/4 (real time hdr)
And there's no averaging in lower resolution normal video processing, it's not even using all the pixels of the full sensor. That's why most flagship use 12mp 4:3 (video is cropped 16:9 8mp 4k), no wasted resolution
harysviewty said:
Lg v30 V35 g7 v40 have super bright mode video, 2x2 4in1 pixel binning in video (4K becoming full HD), + there's adaptive fps for lowlight
HTC has multiframe subsampling processing for lowlight noiseless video
Sony has dual camera sensor fusion (normal & bw) for super high iso lowlight video
No, you're wrong
Binning isn't always about 1+2+3+4= 10, it can also be like 1+2+3+4=10 :4= 2.5 (PureView) or 1+4+4+5=4 or 1+2+3+4=1/2/3/4 (real time hdr)
And there's no averaging in lower resolution normal video processing, it's not even using all the pixels of the full sensor. That's why most flagship use 12mp 4:3 (video is cropped 16:9 8mp 4k), no wasted resolution
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Click to collapse
I did say: "the real process of binning pixels is actually much more complicated, and simple addition may not be done" i was simplifying the technical stuff. Pixel binning is also done by averaging values, though not benefiting brightness but noise reduction.
In video the camera actually sends full frame raw data to the isp, which manipulates the raw sensor data by cropping and subsampling (technically the same as binning by averaging) and then dumping that data on flash memory as a video format.
Most modern phones use subsampling by averaging because it reduces noise.
Many phones have issues with noise while filming in 4k in low light condition because the noise filtering applied to videos must be fast and efficient, where as photo noise filtering is done with much more processing.
The LG super bright video mode is most likely some kind of software trickery that forces 1080p resolution because subsampling reduces noise, and does one of two things either increase iso or increase brightness/contrast in post processing.
JoraForever said:
I did say: "the real process of binning pixels is actually much more complicated, and simple addition may not be done" i was simplifying the technical stuff. Pixel binning is also done by averaging values, though not benefiting brightness but noise reduction.
In video the camera actually sends full frame raw data to the isp, which manipulates the raw sensor data by cropping and subsampling (technically the same as binning by averaging) and then dumping that data on flash memory as a video format.
Most modern phones use subsampling by averaging because it reduces noise.
Many phones have issues with noise while filming in 4k in low light condition because the noise filtering applied to videos must be fast and efficient, where as photo noise filtering is done with much more processing.
The LG super bright video mode is most likely some kind of software trickery that forces 1080p resolution because subsampling reduces noise, and does one of two things either increase iso or increase brightness/contrast in post processing.
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Click to collapse
https://en.ids-imaging.com/techtipps-detail/en_techtip-binning-subsampling-or-scaler.html
I believe subsampling =/= averaging
That's why lowlight video from 40mp Huawei mate 20 pro sucks so bad
Lg bright mode is a real time processing, 15-24fps, ev +1 stop (higher than max iso on auto /manual mode), 1/4 max resolution,
I've been wanting to ask this question since, Xiaomi lies a lot when it comes to phone specs. Well, it's cheap, so we can't complain.
I know on the P20 Pro the software uses pixel binning to drastically increase the quality of the photo if you shoot in the lower res mode vs 40mp. This was especially evident in lower light scenarios where you would get vastly superior dynamic range across the image.
But on this phone there seems to be no benefit other than the shooting speed.
In fact, in my tests it appears that 48mp actually provides an equal or even super quality image. There is less "smudging" and "oil paint" look to the image in almost every shot that isn't in sunlight.