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On 2008-02-08 17:51:48, Raiderski wrote:
LaurensB, nice to see good ideas
believe or not but i have this already in my driver. it's based on manual shutter speed selection (zoom keys) and here is small example, maybe not the best but i have no free time (and opportunity) to make something more "spectacular"
exposure time is 0.75s (can go up to 2s as normal manual shutter speed without flash)
Already done some nice try's with Genus old driver :
http://my.opera.com/LaurensB/blog/2007/12/20/long-exposure-shots
But I am looking forward to your version, BTW is 2 seconds the limit? I thought the W810i could go up to 8/30 seconds!
Edit :
It isn't exactly the same as told about on that website but I'm sure I will be able to give some examples about what I mean with a super cam driver that supports shutter speed:P
Basically the only thing we would need for this is control of the flash sync (flash shoots at the start of the shot or at the end) and the exposure time during flash
I don't know if the first is possible but I am quite sure the second on is!
Looking forward to more development
I am sure we can do some impressive stuff with this
[ This Message was edited by: LaurensB on 2008-02-08 17:28 ]
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Posted: 2008-02-08 18:22:45
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yes, 2sec is the official limit for 2mp/3mp. shutter speed mechanism seems to be identical like in k750/w8x0. they were able to do ~7sec exposure in extreme conditions but this was max. EXIF still was saying 2sec and that's because of slow shutter speed which also has big influence on exposure time
_________________
K800 R1KG001 (camdriver 6.1)
raider.4shared.com
flickr.com/photos/raiderek
[ This Message was edited by: Raiderski on 2008-02-08 17:41 ]
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Posted: 2008-02-08 18:36:03
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Awesome
That's really good to know
Btw : quick question, can we disable the auto-noise reduction? It can make pictures very ugly, a good example would be this :
http://img455.imageshack.us/my.php?image=k800earlyphoto2ms.jpg
The K750i usually has more detail in the pictures (at a lower resolution) I haven't been able to figure out if it's because the compression, sharpness filter or noise reduction but my guess is the later one. I don't have a K750i at hand to prove my point.
Thanks for all the great work!
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Posted: 2008-02-08 18:57:37
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bugs in EXIF exposure time (left is EXIF, right is real value)
4/3 - 3/4
3/4 - 4/3
3/5 - 5/3
LaurensB
as far as i know K800 don't have noise reduction methods. this rather depends on sharpness, ISO, compression, colors saturation... separately or all at once
one more thing to note is bilinear filtering used for pixel interpolation in zoom. default state is always enabled but disabled can improve sharpness on x1.0 pictures. unfortunately i can't find register (cmd5b from k750 doesn't work)
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Posted: 2008-02-08 22:50:12
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Yes there's no noise reduction like others are claiming. A white balance filter is not a noise reduction filter. JPEG compression isn't either.
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Posted: 2008-02-08 23:12:33
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seq_set_prop_9_6
what for? any ideas?
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Posted: 2008-02-09 13:32:10
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On 2008-02-09 13:32:10, Raiderski wrote:
seq_set_prop_9_6
what for? any ideas?
Raider I think it's for the focus algorithm, when in Doc mode it takes only the center of the screen for the focus, and in other modes takes an average of every points on the screen (AF windows)
[ This Message was edited by: jomateixa on 2008-02-09 12:54 ]
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Posted: 2008-02-09 13:53:24
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i did small test with it. with 6sec delay in seq_set_prop_9_6 code i didn't met any delays during scene & focus changes. this subproperty seems to be unused
_________________
K800 R1KG001 (camdriver 6.1)
raider.4shared.com
flickr.com/photos/raiderek
[ This Message was edited by: Raiderski on 2008-02-09 13:13 ]
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Posted: 2008-02-09 14:08:00
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On 2008-02-09 14:08:00, Raiderski wrote:
i did small test with it. with 6sec delay in seq_set_prop_9_6 code i didn't met any delays during scene & focus changes. this subproperty seems to be unused
_________________
K800 R1KG001 (camdriver 6.1)
raider.4shared.com
flickr.com/photos/raiderek
[ This Message was edited by: Raiderski on 2008-02-09 13:13 ]
Maybe is used when in spot metering? I'm just wondering... You tested the delay when in Macro mode too? Maybe multiple AF windows are used not in normal mode
[ This Message was edited by: jomateixa on 2008-02-09 13:31 ]
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Posted: 2008-02-09 14:22:10
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seq_set_prop_9_6, it holds two focus commands
#SET_REG(32,04)#SET_REG(32,05)
#READ_REG(32,$r2 0 0) // Check what reg 32 contains
$b0 00 1 7 // Mask out LSB bit
$c0 00
i guess all that just tells the autofocus what to select.
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Posted: 2008-02-09 15:00:54
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