maxym, 06 Apr 2013Well, to be honest, HDR is achieved by combining, 2 or more underexposed/overexposed pictures ... moreThe reason I said HDR isnt possible on P was because of its inability to snap consecutive photos faster. Software wise it's possible but it will always end up with blurry objects (unless, as you said, the subject is still and there is absolutely no hand shakes). I still dont believe that smartphone camera tech is mature enough to implement HDR just yet..... Oversampling should be the real aim now..... everyone needs to take a cue from pureview tech. UltraPixel, I believe, is a failure. But if somehow both the tech is combined and a separate image encoding chip (a powerful one) is reserved within the phone, just for running the camera.... I think anything will be possible then. Only thing stopping that from happening is the limited battery. Either that needs improvement or higher efficiency chips needs to be made. The upcoming ARM Cortex A57 cores will open up new possibilities.
In short, although HDR is possible in smartphones.... it's just not plausible enough to use.
maxym, 06 Apr 2013Two more corrections.
HDR has nothing to do with real life like photos, HDR pictures have m... moreYes, you are right. But you misinterpreted my words. Noise as you said is created by the sensor's inability to capture the desired amount of photons. And I laid stress on the fact that this 'desired' light can't be achieved on a phone that has fixed aperture resulting in digital manipulation of light (by changing ISO). This makes the noise created by the lens's shortcomings more prominent. I don't think I said anything wrong in that part.
And when I said 'Real life' photos I didn't mean it based on human's perception to light. I just said that to explain the difference between photos that have 'natural' light and photos that have contrasting light on various objects (like the scenes having a brighter background and dimmer subject or vice versa).
And hey.... you are more experienced than me.... correct me if I am wrong. Am just replying to make myself clear.... :D
Sbdevilmind, 06 Apr 2013High Dynamic Range or HDR is a tech that gives real life like photos. You must have noticed th... moreTwo more corrections.
HDR has nothing to do with real life like photos, HDR pictures have much broader dynamic range then human eye, so it's just artificially enlarged dynamic range that gives richer and more detail picture thats pleasent to watch but not noticable by watching in nature with human eyes.
And also, when you talked about noise, you probably ment about blurry and fuzzy parts of picture due to low shutter speed or moving the camera while picturing. Image noise is sole 'property' of image sensor on high ISO (when signal from photons falling on the sensor is too weak to be distinguished from electrical fluctuations on sensor), and has nothing to do with incorrect exposition or to low light to capture fast moving objects.
Sbdevilmind, 06 Apr 2013High Dynamic Range or HDR is a tech that gives real life like photos. You must have noticed th... moreWell, to be honest, HDR is achieved by combining, 2 or more underexposed/overexposed pictures and exposition can be altered by changing any one of three items of "exposition circle": shutter speed, ISO or aperture.
Since on any smartphone aperture is fixed, HDR is achieved by varying ISO or shutter speed. Since HDR of moving objects is not possible (can be done but doesn't look nice) shutter speed is irrelevant, and holding still your smartphone is more important (although microaligning of picture is possible in software).
HDR on Xperia P, or any other smartphone, thus is possible but results might not be as spectacular as on DSLR-s.
My Question to All(Entire Forum) of you Is !!!!!!!!!
How do you pull out the Battery in Hurry, If your phones gets wet accidently ???
Did anyone thought about that ???
karan jaggi, 06 Apr 2013how to stop a download in xperia P? it has been 24hrs but still its showing in notifications t... moreDownload got stuck probably because of loosing data connection. Just press encircled X in upper right corner of the notification screen.
Also check Google play if it's running in the background and kill it (long press on third soft key).
kumars, 06 Apr 2013Whats he process of upgrading this device to jelly bean ? I tried updating through sony websit... moreThere is no process for upgrading to JB, there is only regular updating process (if we talk about official updates) which upgrades (if applicable) smartphone to newest firmware available (which might, or might not consist newer android OS).
Currently there is no official update for JB available for Xperia P (although it's coming soon), and when it comes, you will see it on official Sony webpages, and not from trolls on forums.
surendhar, 06 Apr 2013how do u know?He don't know, just telling bulls**t, and bunch of naive readers bites it.
qipz, 06 Apr 2013Guys JB coming tomorrow...R u joking???It's not 1st April!
syed, 31 Mar 2013hi i just wanna know Xperia J is good for Gaming. plz rplyWorst... single core processor. ..
qipz, 06 Apr 2013Guys JB coming tomorrow...Where did you get this info? Please post the link.
Little john, 05 Apr 2013Oops it's Xperia LYea, L is way better, with Arc design, card slot, more capable cpu and gpu, display is bigger but lower res, better cam, and will get future updates, key lime pie is to be expected, battery should also be better.
Those who can't live with the display resolution of the L should look at Xperia SP.
Whats he process of upgrading this device to jelly bean ? I tried updating through sony website; it's updated but still is ice cream sandwich..........:(
Is there any other process to upgrade ?
XPRIA P. It is very good phone not bulky not thin. superb performacne. It not gaming, battary will large whole day
how to stop a download in xperia P? it has been 24hrs but still its showing in notifications that the app is being dowloaded. there has been no prgorss in download although the app is of 9mb only. plz help
Anonymous, 05 Apr 2013what if the phone has HDR technology?High Dynamic Range or HDR is a tech that gives real life like photos. You must have noticed this peculiar effect when the brightness goes very low when the bright sky is visible behind the object making it all black or if focused well on the object, the sky becomes too bright. Its all because of the automatic exposure changing ability of the device. To solve this, the cameras with HDR take three photos in low, medium and high exposures and then mix them together to give perfect lighting. The catch here is that the three photos needs to be taken very fast else blur will occur. High end smartphones now do have this feature but it's not as effective as those available in dSLR cameras.
On Xperia P it's not possible. Besides noise in photos are directly affected by the phone's camera aperture, exposure and shutter speed. It's almost impossible to increase camera aperture (the hole through which light passes) because that will call for bigger lens, else light won't focus well onto the sensor. Since natural light is limited, the phone try to increase the brightness digitally. This is called exposure manipulation. It's value is measured in ISO. Shutter speed is what decides how still a photo can be captured. Higher speed means even a high speed object won't show blur. But high speed calls for higher amount of light to pass through the lens (i.e bigger aperture). Since bigger aperture is not possible, the exposure instead is increased. This leads to worse photos (blown out details, noise, etc). The quicker the shutter closes, lesser the light passes. But if the shutter speed is decreases to allow more light to pass, photos tend to blur (by shaky hands). This effect is highly prominent at night time photos. Everything is against the phone's camera. Since the phone can't change aperture value (since it's a fixed hardware, plus the aperture-lens size relation I told above), hence the exposure and shutter speeds are manipulated instead. Which in turn makes photo either blurry or noisy or both.
So dont blame manufacturers that they make crappy cameras..... cause they have no way to make it better. But when they do manage (like what Nokia did with pureview 808), it's something to appreciate from the bottom of the heart.