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View Full Version : Low Light Noise Levels.....


Phil Angel
15th September 2012, 08:51 AM
Ok now i am confused !!!!! if i try to shoot low light shots in either aperture or shutter priority,there is loads of noise.
However if i shoot using one of the scene modes for night/low light, the images are fine.
Am i misssing something in the settings as i don't see how there can be so much difference.

I had the camera set to 100 iso. Noise filter set to standard.

Any one care to shed some light on this.

Cheers

SteveJ
15th September 2012, 09:13 AM
Hi Phil,
I had similar problems with my e600. Your problem may be the "Gradation" Filter. For some reason Olympus set this to Auto as default. If you set it to normal you should reduce the noise. If that is the problem of course.
Regards
Steve

sponner
15th September 2012, 09:35 AM
This is just a guess.......I bet the scene modes apply a lot of in camera noise reduction?

Phil Angel
15th September 2012, 09:37 AM
Thanks Steve , i will try altering the gradation filter and see whatr effect that has

photonutter
15th September 2012, 12:06 PM
If anything like the E620, there's noise filter and noise reduction, which only one can be selected at a time. Reduction being the better performer, though doubles time between exposures.

David Morison
15th September 2012, 12:29 PM
You don't say whether you are recording in RAW or jpeg. I would always record in RAW even if I used and in camera filter or scene mode as well. Then you can compare and, if advantageous to do so, process the RAW file.

David

Ross the fiddler
15th September 2012, 12:44 PM
If anything like the E620, there's noise filter and noise reduction, which only one can be selected at a time. Reduction being the better performer, though doubles time between exposures.

Noise reduction within the (Olympus) camera is for long exposures & that is a 'dark frame subtraction' where a second exposure is taken for the same length of time but with the shutter closed & the noisy hot pixels that are in that are subtracted from the first exposure to cancel the effect from hot pixels (which can look like a starry night). This is best left set to Auto to happen any time an exposure time might create hot pixels.

Noise Filter is referring to the firmware that smooths out the noise (mottled appearance) that happens with high ISO use. It can be a matter of taste to set to OFF, LOW or Standard (or even high if wanted).

If the 'Gradation' setting is set to 'Auto' it will raise the effective sensitivity in the shadow & dark areas (like someones black suit) & is best only used with ISO up to 200 (for E500 models & maybe ISO 400 for E600 models etc) as anything higher will be like using a high ISO in the shadow & dark areas with the resulting noise there. If in doubt, use Gradation set to Normal.

Phil Angel
15th September 2012, 12:59 PM
You don't say whether you are recording in RAW or jpeg. I would always record in RAW even if I used and in camera filter or scene mode as well. Then you can compare and, if advantageous to do so, process the RAW file.

David

hi david, i shoot raw + jpeg so i was able to keep some of the shots.

Ross the fiddler
15th September 2012, 01:24 PM
hi david, i shoot raw + jpeg so i was able to keep some of the shots.

You have the best of both worlds in doing so (& I do the same) so long as you have enough storage space.