>
New Topic
>
Reply<
Esato Forum Index
>
Sony Ericsson / Sony >
General
> Sony Ericsson 8.1MP C905 Discussion (Shiho)
Bookmark topic
naveedaziz83 Posts: > 500
couple of videos posted by c905 ( hopefully ) on youtube
http://www.youtube.com/watch?v=CwTtMRVXxi4
http://www.youtube.com/watch?v=4itgvmHIqrg
--
Posted: 2008-09-18 00:26:42
Edit :
Quote
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.
--
Posted: 2008-09-18 00:32:42
Edit :
Quote
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.
--
Posted: 2008-09-18 01:29:49
Edit :
Quote
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.
--
Posted: 2008-09-18 09:35:46
Edit :
Quote
good quality,better than k850 or even c902...at least viewable
--
Posted: 2008-09-18 09:40:08
Edit :
Quote
Another one:
http://www.youtube.com/watch?v=pJ0C6G17XYc
The idea of using a higher bit rate with a lower resolution didn't sound all that bad to me at first but this is really low quality...
Edit:
Compare to c902 (similar video):
http://www.youtube.com/watch?v=rkeMjm6P338
[ This Message was edited by: staffanp on 2008-09-18 09:45 ]
--
Posted: 2008-09-18 10:36:44
Edit :
Quote
On 2008-09-18 01:29:49, max_wedge wrote:
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.
Yes, therefore the sensor is only exposed during the time the shutter is open, which would make the two values the same. The sensor doesn't 'get ready' so to speak. And any black the sensor is exposed to would destroy the picture Max.
This is getting silly now
The C905 DOES have a mechanical shutter. It is well noted in a few reviews.
Everyone seems to be missing my point here, even though I've posted the explanation several times.
The actual photographic term 'Shutter Speed', is the same as the term 'Exposure Time'. They measure the same thing. They ARE the same thing! There are two different available EXIF entries I believe because Manufacturers choose either one or the other to express this value.
Look at my previous posts please! You can see how one program reads the EXIF value 1/1600 as Exposure Time, and the other as Shutter Speed. You can also read how these two terms are one and the same thing.
What I'm trying to get across here is that I have no idea what this 1 sec relates to but is nothing to do with Shutter Speed. You can NOT have a Shutter Speed of 1 sec and an exposure time of 1/1600 sec!
Manufacturers wouldn't fill in an entry for the sake of it. There are numerous entries which are blank, so fill in that one? It's information in the wrong place, or, is just measuring a response time or something like that.
[ This Message was edited by: marty mcfly on 2008-09-18 11:27 ]
--
Posted: 2008-09-18 12:17:54
Edit :
Quote
On 2008-09-18 12:17:54, marty mcfly wrote:
This is getting silly now
Back to another topic which I think deserve a little more discussion: what about VGA video recording? Has this been confirmed yet?
--
Posted: 2008-09-18 14:05:39
Edit :
Quote
should be getting my C905 in a few days
--
Posted: 2008-09-18 14:15:10
Edit :
Quote
On 2008-09-18 14:05:39, AbuBasim wrote:
On 2008-09-18 12:17:54, marty mcfly wrote:
This is getting silly now
Back to another topic which I think deserve a little more discussion: what about VGA video recording? Has this been confirmed yet?
I don't think there has ever been any doubt it would be QVGA. That's what the white paper stated and what the reviews have been mentioning too. The videos on YouTube are in this format too, and they are quite poor.
--
Posted: 2008-09-18 14:27:15
Edit :
Quote
New Topic
Reply
