Forum > General discussions > Rumours > SONY Xperia Rumors 2013 Edition

On 2013-06-17 18:09:33, Shotokan81 wrote:
He already said he thinks the phone does not exist 3 posts after your question

On 2013-06-17 18:54:41, itsjustJOH wrote:
^
So, I guess Togari is the "big glass"? Jokes aside, what would the back of the big eye be made of?

Hi everyone, there are so few factually correct statements in the original piece or related comments (no disrespect intended) I felt compelled to help explain.

Please note, my comments are ONLY addressing the general topic of mechanical shutters – no more.
Keeping it simple, the main reason for fitting mechanical shutters is for use with xenon flash. Typically CMOS sensors read light across the sensor from left to right and top to bottom. The time each pixel is ‘read’ is the effective shutter speed. This is OK in most cases and OK with LED flash as the light is effectively constant/continuous. LED flash in most cases being the equivalent of turning on a torch before the exposure and turning it off after the exposure has been made, effectively increasing the amount of light in the scene more or less for the duration of the picture.

In the case of xenon, the flash fires a very short ‘pulse’ of light. This pulse can be as short as approximately 1/25,000 (hence why xenon can freeze high speed movement). With a typical CMOS sensor the time difference between the 1st pixel being ‘read’ and the last is greater than this time. The result would be some pixels would be correctly exposed whilst others would be dark or even potentially black. To overcome this, the pixels are effectively read all at the same time. But to achieve this all pixels are turned on, the shutter opens, the flash fires, the shutter closes and the pixels turned off. And that’s why typically mechanical shutters have been needed in products such as n8, n82, n808. In some cases some latest generation sensors can read all their pixels at very high speed (note: again don’t ask me to comment on speculation or rumour) allowing xenon to be used. In some cases e.g. Nikon 1 series these later generation sensors are allowing for electronic shutters which can provide potential advantages in high frame rate scenarios which mechanical shutters would not be suitable for.

In some cases a hybrid approach maybe used e.g. a SE product of a few years back which featured xenon only used the mechanical shutter for flash but not other situations, which meant in that case it didn’t provide the following potential advantage….
With mechanical shutters, because the pixels are effectively read all at the same time it overcomes the motion skew effect which can typically occur with CMOS sensors due to the time difference between the first and last pixels being read. As the read time from CMOS sensors is increasing (shorter read times) this is becoming less of an issue in some cases.

Mechanical shutters do require additional space, there are no space advantages to them.
As for dust protection there is some theoretical advantage to them but in practice (at least in my experience) I have seen dust penetration in all cameras, there is a fundamental limit to what can be done to prevent dust penetration.
Hope that clarifies things.

The Satio and the N8 had pretty powerful flash

On 2013-06-18 02:20:10, maiaramdan wrote:
Guys

All what I said yesterday, is just what I have info about
I don't know anything may right or wrong, but as before when I told that the ZL May be postponed, and no one take care until before the announcement, you yourself found that on the last time, there was really a lot of sounds from the insiders that SONY will postpone it

I found so much offence with no reason, so guys I got surprised from this

On 2013-06-18 03:35:26, razec wrote:
@maia, you're lucky enough that you never meet with the harshest critics here(most of them either banned or no longer with us), so don't be offended, you're more than welcome to chat in this community, and your info is greatly appreciated by many of us here

I want to render your sketch in a much better quality on the concept thread, if you could share us further details about the design our designers here would be honored to do so, if you want to keep it more private, you can PM me/litoni/reeflotz or any artist you knew here