Esato

Forum > Sony Ericsson / Sony > General > Solution to white lines in K750 low light pics

Author Solution to white lines in K750 low light pics
max_wedge
Xperia Neo Black
Joined: Aug 29, 2004
Posts: > 500
From: Australia
PM, WWW
Posted: 2005-08-28 17:31
Reply with quoteEdit/Delete This PostPrint this post
The cause of the white lines in low light photos of the K750 mostly comes down to the ISO setting. If you can keep it below 160 the white lines are virtually non-existant. The ISO value changes depending on the amount of light available, and the other settings (white balance and exposure sem to have some impact). Make sure you are using a manual white balance setting, I've found the auto setting isn't always appropriate

The most effective thing you can do however is use night mode! funny that but it makes a huge difference to the lines.

Image without night mode, normal exposure:


Image with night mode, marked improvement:


Image without nightmode (iso 500)


Image with night mode (iso 160)


It's still not perfect, but I find if I use night mode, the results are on par with what you'd expect of night shots from a low res cmos based digital camera.
adro
K750
Joined: Aug 22, 2005
Posts: 11
PM
Posted: 2005-08-28 19:49
Reply with quoteEdit/Delete This PostPrint this post
thanks buddy for ur advice..just some questions 4u..in im phone i can just set night mode on/off and cannot manage iso settings manually. in the white balance i'm supposed to choose only among :automatic-daylight-cloudy-fluorescent-"incandescent".nothing else.how can i set exposure manually??any tip??
again..using nightmode would require a tripod (dunno if it's the right term)i mean ..camera needs to be placed on a fixed surface, if i try to take pics in night mode holding my phone in my hand,then the resultant pic would be extremely noised,cause shooter'time is longer than normal mode...
hope you can understand,
thanks
adro
max_wedge
Xperia Neo Black
Joined: Aug 29, 2004
Posts: > 500
From: Australia
PM, WWW
Posted: 2005-08-29 02:50
Reply with quoteEdit/Delete This PostPrint this post
Night mode isn't too bad, but you do have to hold it still. It's no different to using a slow shutter speed on an old film camera. Use the inbuilt light whenever possible (when subject close) that will keep the iso speed down (The iso speed is adjusted automatically)

With the White Balance, leave it on auto if outside at night and using night mode. However I've found that in lowlight daytime conditions where night light is unnecessary, you can get white lines if the White Balance is incorrect. So use auto with Night mode, but if not using night mode, manually select the mode that matches the lighting. For example under fluorescent lights use fluorescent mode, if under light globes, use incandescent, if in very shady area or the day is cloudy, use Cloudy mode.

You can also play with exposure by using left/right joystick to change the exposure step. I've found the white lines seem to be less pronounced if you slightly under-expose rather than over expose.

[ This Message was edited by: max_wedge on 2005-08-29 01:52 ]
mrbinks76
K800 Black
Joined: Jun 16, 2004
Posts: 75
From: Singapore
PM
Posted: 2005-08-29 04:48
Reply with quoteEdit/Delete This PostPrint this post
If you take night shots or in dark environments often, I suggest getting the MXE-60 flash attachment. Colours turn out richer and the pic is less grainy. Less chance of blurring due to camera shake also. FYI, using the attachment forces ISO-200 and 1/15 exposure time.
Nokia 3xxx -> Ericsson T20 -> Nokia 6xxx -> SE T68i -> SE K700i -> SE K750i -> SE K800i
adro
K750
Joined: Aug 22, 2005
Posts: 11
PM
Posted: 2005-08-29 09:36
Reply with quoteEdit/Delete This PostPrint this post
thanks to everyone for these advices...
c u soon
adro
Access the forum with a mobile phone via esato.mobi