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Sony Ericsson 8.1MP C905 Discussion (Shiho) |
marty mcfly
Joined: May 20, 2007
Posts: > 500
From: England
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On 2008-09-17 15:24:33, valgargg wrote:
On 2008-09-17 15:10:23, AbuBasim wrote:
On 2008-09-17 14:30:21, Muhammad-Oli wrote:
I don't see why they'd change... I assume they just bolt that feature on and leave it fairly unchanged from model to model.
Still VGA-sized shots then? 
The k850i does 9 pics with bestpic at full 5 mp resolution each pic, so like Oli said I dont think they would take a step back
Sorry, wrong! 
From the official video, count them! 1, 2....:
The official site also states 7 shots. It will be because of the high resolution probably.
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valgargg
Joined: Feb 28, 2007
Posts: 22
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unfortantly he is right 
whitepaper also states 7 pics... |
max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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On 2008-09-17 10:35:53, AbuBasim wrote:
I got the shutter speed and exposure times the wrong way. I was looking at EXIF from i-mobile 902 photos and noticed that the shutter speed usually is shorter than the exposure time. (The i-mobile 902 has a mechanical shutter.) So I deduced incorrectly.
Thanks for the clarification, Marty.
Edit: Actually, I still think there's a reason why some cameras record different values for exposure time and shutter speed. The i-mobile 902 is not the only one doing this. Have a look at sassho's nice cat photo here.
[ This Message was edited by: AbuBasim on 2008-09-17 12:20 ]
some phone cameras have physical shutters but I'm pretty sure those that do still use electronic shuttering. If you think about it like this, why have a real shutter at all if you can just time it electronically. So there is an advantage to a physical shutter which is probably something to do with responsiveness of the shutter and accuracy.
If that's the case the Exposure Time would need to be longer than the Shutter Speed, to allow a full open and close of the shutter. Maybe C905 have electronic shutter?
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Radu_91
Joined: Sep 14, 2008
Posts: 201
From: Romania
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when is the release date ?
[ This Message was edited by: Radu_91 on 2008-09-17 15:46 ] |
marty mcfly
Joined: May 20, 2007
Posts: > 500
From: England
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On 2008-09-17 16:08:52, max_wedge wrote:
If that's the case the Exposure Time would need to be longer than the Shutter Speed, to allow a full open and close of the shutter. Maybe C905 have electronic shutter?
But it's the the Shutter Speed that is longer than the Exposure Time. Not the other way round.
Plus if the exposure time was longer than the shutter speed, the photo wouldn't develop properly because it would have a brief period of black.
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[ This Message was edited by: Marty Mcfly on 2008-09-17 17:08 ] |
goldenface
Joined: Dec 17, 2003
Posts: > 500
From: Liverpool City Centre
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On 2008-09-17 16:33:34, Radu_91 wrote:
when is the release date ?
Starts shipping 20th October.
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duhprest
Joined: May 13, 2007
Posts: 37
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when is it coming out on 3? |
marty mcfly
Joined: May 20, 2007
Posts: > 500
From: England
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Just to clarify what I was saying earlier, that Exposure Time and Shutter Speed are the same thing:
This is the same C905 pictures' EXIF, viewed with two different programs. As you can see, the 1/1600 value is read by one program as Exposure Time, and the other as Shutter Speed.
The 1 sec value that is in the EXIF on the left which caused the confusion, I cannot see on any other EXIF program. They all say the same thing, and that is 1/1600. It seems to be common to Mobile Phone Cameras that a value of around 1 sec appears here. I don't know why though. 
It is just data being confused as a something else in the EXIF it seems to me.
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[ This Message was edited by: marty mcfly on 2008-09-17 19:36 ] |
Tobbis
Joined: Feb 16, 2008
Posts: 16
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If not completely wrong, digital cameras dont have a "real shutter", specially not small cell-phones and mayby therefor SE has choose to ignore this in the EXIF and only set that option to 1. Or its just a firwmare-bug |
marty mcfly
Joined: May 20, 2007
Posts: > 500
From: England
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On 2008-09-17 22:36:58, Tobbis wrote:
If not completely wrong, digital cameras dont have a "real shutter", specially not small cell-phones and mayby therefor SE has choose to ignore this in the EXIF and only set that option to 1. Or its just a firwmare-bug
Digital cameras do have real shutters. Mobile phone cameras also have them.
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naveedaziz83
Joined: Nov 15, 2007
Posts: > 500
From: Saudi Arabia
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couple of videos posted by c905 ( hopefully ) on youtube
http://www.youtube.com/watch?v=CwTtMRVXxi4
http://www.youtube.com/watch?v=4itgvmHIqrg
Nokia N8 |
marty mcfly
Joined: May 20, 2007
Posts: > 500
From: England
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Ewww...what poor quality! We knew it would be QVGA but I thought it would be higher quality than that!
I know YouTube can mess quality up though during process upon upload, and of course it could be an early handset.
But...ewwww.
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max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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On 2008-09-17 16:50:17, marty mcfly wrote:
On 2008-09-17 16:08:52, max_wedge wrote:
If that's the case the Exposure Time would need to be longer than the Shutter Speed, to allow a full open and close of the shutter. Maybe C905 have electronic shutter?
But it's the the Shutter Speed that is longer than the Exposure Time. Not the other way round.
Plus if the exposure time was longer than the shutter speed, the photo wouldn't develop properly because it would have a brief period of black.
Not necessarily. The period of black won't affect the exposure as long as the exposure balance (which will set the cmos sensitivity) is measured from shutter speed and not exposure time. Having the sensor active and ready before the shutter opens and after it closes will ensure that all light exposed during the opening of the shutter will be recorded.
If a camera doesn't have a physical shutter then manufacturers may put spurious values. For example C905 has 1sec for shutter speed because there is no physical shutter - in other words it's a fill in value that has no meaning. Whereas the exposure time is the true measurement of exposure time.
But on the i902 the values are around the other way (according to abusim shutter speed is shorter than ET) - so perhaps that phone has a mechanical shutter.
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AbuBasim
Joined: Nov 04, 2005
Posts: > 500
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On 2008-09-18 01:29:49, max_wedge wrote:
But on the i902 the values are around the other way (according to abusim shutter speed is shorter than ET) - so perhaps that phone has a mechanical shutter.
Yes, the i-mobile 902 definitely has a mechanical shutter.
Even some Nokia phones give slightly differing values for Shutter Speed and Exposure time in the EXIF data. But in all cases, including the SGH-D600 and the i-mobile 902, the differences are quite small. These could be explained by the fact that Shutter Speed and Exposure Time are not stored in the same form.
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masada1971
Joined: Jun 05, 2008
Posts: > 500
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good quality,better than k850 or even c902...at least viewable |
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Posted: 2008-09-17 15:29
