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Sonyericsson LED flashes is genius |
plankgatan
Joined: May 20, 2007
Posts: > 500
From: Sweden fur alle
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i dont know how many of you people who have notice this with your SE shooters (with LED flash), i found it out some days ago when i was testing night pictures with my new firmware. (before i nearly always had the flash turned OFF because i thought the flash on c902 did more bad then good on lowlight/night, but after i saw the result i changed my mind pretty fast)
some test-examples:
full auto
auto (flash off)
full auto
auto (flash off)
full auto
auto (flash off)
full auto
[ This Message was edited by: plankgatan on 2009-03-15 14:31 ] |
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Pitzon
Joined: Oct 14, 2007
Posts: 435
From: Sweden
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lol, the weak led flash on those pics doesent have any effect at all plank
The phone tricks itself and think it could use a lower Iso (darker picture) because the flash is activated and when you turn it to off the phone chooses a higher iso to let more light in.
So itīs the same as locking the iso low to get a nicer looking shot with less noice but what we really would want is a brighter picture but sharp.
But nice to know how to get lower iso when you canīt set it in the phone |
number1
Joined: Sep 12, 2007
Posts: > 500
From: UK,kent,Sittingbourne
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The flash has fixed colour correction thats why the colours are better & probley uses quicker exposure time.
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Raiderski
Joined: Jul 03, 2006
Posts: > 500
From: Poland, Hell, Mountains
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LED have small color correction to make white light warmer. pics are better because of reduced ISO, LED off = ISO 400, LED on = ISO 200. it's because of the trick in C902 driver when LED is on...
- focused outside macro range = ISO 200
- focused inside macro range = ISO 100 (to avoid overexposure)
macro range starts from ~20cm
in this way you can virtually boost LED power, change ISO 200 to ISO 250, 320, 400 
[ This Message was edited by: Raiderski on 2009-03-14 22:42 ] |
plankgatan
Joined: May 20, 2007
Posts: > 500
From: Sweden fur alle
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well, i dont care "how" it effect my pictures. i only know what i see........
and i see MUCH better lowlight and night pics. (thats pretty much what i said and showed you guys)
Pitzon, (i know the flash make the phone use a lower iso-level....etc), besides we speaks about 2 different things.
you speaks about that a normal cellphone flash dont produce light enough to make some hugh different, (well, thats quite basic and true).
i just meant what a great different you get after using this type of LED....(think its a genius function)
however, lowlight/night has been much better then before, (sharper, warmer colours, less noise...) which is glad news
[ This Message was edited by: plankgatan on 2009-03-15 01:40 ] |
michka
Joined: May 17, 2004
Posts: > 500
From: Brussels-Belgium
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Now that's a bright idea: write a driver that overexposes the picture, and then ask people to use the flash so that it tricks the camera into thinking there is more light and it lowers the exposure.
Why make it simple when you can make it overcomplicated?
That's what I call pure genius!
Pedestrian: don't run, my car is faster anyway. |
Pitzon
Joined: Oct 14, 2007
Posts: 435
From: Sweden
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On 2009-03-15 01:22:43, plankgatan wrote:
well, i dont care "how" it effect my pictures. i only know what i see........
and i see MUCH better lowlight and night pics. (thats pretty much what i said and showed you guys)
Pitzon, (i know the flash make the phone use a lower iso-level....etc), besides we speaks about 2 different things.
you speaks about that a normal cellphone flash dont produce light enough to make some hugh different, (well, thats quite basic and true).
i just meant what a great different you get after using this type of LED....(think its a genius function)
however, lowlight/night has been much better then before, (sharper, warmer colours, less noise...) which is glad news
[ This Message was edited by: plankgatan on 2009-03-15 01:40 ]
I just laughed at the "genious" part of the thing. It would be more genious to let us lock the iso ourselfes and with the flash off to save battery. On those scenerys the led doesent do a thing. Even a xenon flash wouldnīt reach the objects you are shooting. Letting us set the iso ourselfs and the exposure time would be genious. Put the phone on a flat surface and set a 10 sec exposure time
And as i said, the pics looks better just because they are darker so you wont see all noise and details that would be there with the higher iso pic.
This is the effect it has in reality
Low iso, you see less details, noise and so on
This is what we really would want, more details but still sharp.
This is just an overdone example with the same pic but shows how i meant. By lowering the iso you get less on the pic. |
plankgatan
Joined: May 20, 2007
Posts: > 500
From: Sweden fur alle
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well. let me explain this way. we tried our Pentax (xenon) digi cam and shot some flash pics outdoor and the result DID NOT became good.
just look at the pictures, they looks so much better. (and yes, it because of the flash. besides, it takes some serious work and testing by SE, to get this great quality with flash fired outdoor, (iso-settings, exposure, etc).
i have never (EVER) got this night/low light quality before with my cellphones.
http://www.esato.com/phonepho[....]&make=sony+ericsson&model=c902
http://www.esato.com/phonepho[....]&make=sony+ericsson&model=c902
[ This Message was edited by: plankgatan on 2009-03-15 10:19 ] |
Pitzon
Joined: Oct 14, 2007
Posts: 435
From: Sweden
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lol, do you really think your led flash effects the buildings in the distance 200 meters away?
It has nothing to do WITH THE FLASH, it is the iso that changes
I dont reckon myself to know alot about photography but you seem to make an idiot of yourself with this thread plank.
And with your pentax, turn of the flash and set it to a loooooong exposure time and on a flat surface i think you see another result. This is what the i-mobile users do to get nice night shots i guess..
And yet again, some examples of different isos.
N82 iso 200
N82 iso 800
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Raiderski
Joined: Jul 03, 2006
Posts: > 500
From: Poland, Hell, Mountains
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what serious work and testing by SE? half lowered ISO value isn't miracle
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AbuBasim
Joined: Nov 04, 2005
Posts: > 500
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On 2009-03-15 11:26:41, Pitzon wrote:
And with your pentax, turn of the flash and set it to a loooooong exposure time and on a flat surface i think you see another result. This is what the i-mobile users do to get nice night shots i guess..
Exactly. With i-mobile 902's shutter speeds of up to 10 seconds (EV +2.0 at ISO 50) you need a tripod or some other support unless you're a fan of blurry photos.
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plankgatan
Joined: May 20, 2007
Posts: > 500
From: Sweden fur alle
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ok ok Pitzon. (Jesus Christ)...it has NOTHING to do with flash...satisfied ??
i dont know if its you who act like a idiot right now............
I UNDERSTAND THAT THE FLASH DOSENT LIGHT UP A BUILDING 200M AWAY (thats common sense). BUT IT SURELY EFFECT MY PICTURES, (the FLASH lower the iso who make colours and everything better...YES ?)..........so once AGAIN, the flash make this happen....(or do you really suggest something else ?)
Raederski.....neither my K750 or w810 produced this type of lowlight pics with its LED flash, (it looks Crap when i use its LED at night)...............so it must been some kind of improvement by SE...yes ??? (then if it takes 1 week or 1 month to test this camera settings i dont know).
by the way...im not some rookie. i understand that i can set the exposure longer (flash off) and then get better lowlight on a ordinary camera 
(its one of the first steps you learn as a child if you ever used a analog camera, its no rocket science)
more full auto...iso-200...flash fired...looks so much better then before
if you want full size. just let me know
[ This Message was edited by: plankgatan on 2009-03-15 15:59 ] |
adsada
Joined: Aug 23, 2008
Posts: > 500
From: Scotland
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Lol why is it whenever I see a plankgatan thread I know when I read it, there will be an argument and a very dry one at that. I don't understand though what's generous about a LED flash light. If they did spend so much time improving the LED flash, I'm then annoyed because I'd much rather want to see an improved cam driver then an LED flash which does next to nothing.
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Raiderski
Joined: Jul 03, 2006
Posts: > 500
From: Poland, Hell, Mountains
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Plank, for what we need K750 and W810 here? forget about them, you did comparision between pics with LED and no LED, so let's focus on them only. pics looks better which is natural consequence of lower ISO, that's all we want to say, no need to glorify SE dudes remember that there's still quite big reserve buffer between quality which you see now and this what camera can do if you use max parameters (2s exposure with low ISO)
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blerk
Joined: Jun 12, 2008
Posts: > 500
From: London, UK
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So why not add a mode to a custom driver that tricks the phone into thinking the flash is on to get the requires ISO, then we save battery and have warmer images. Manually setting the ISO like on the K850i is of course the most wanted thing, but since (as far as I know) only the K850i has this we can try other means on getting the desired results? Like super mode drivers and my suggestion above for those phone who can't have super mode drivers due to other restrictions.
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Posted: 2009-03-14 21:40
A-D-S-A-D-A 
