750D raw noise

Itzamna wrote:

crashpc wrote:

Hello and congrats on your new camera purchase. To me everything looks good. You got less than ideal results because it's how camera works and how default processing software works.

1: Keep in mind, that with new 24 Mpx camera, looking at 1:1 at your image on the LCD, you're looking at greatly magnified, maybe more than 1m wide image. That's not how images are viewed. Not fair, and very revealing for any camera. Proceed to downsize for viewable sizes, or at least maximum 4k....

2:Exposure.

It's obvious one cannot always handle it towards ones noise performance goals, but the more you expose, the less noise will be visible. So if you can expose more (wider aperture or longer exposure time), do it. There is compromise to that. with more exposure, you risk blowing the light/more lit areas, which will get overexposed. That's bad too. one needs to think about decisions...

3:Processing

Especially in Lightroom, default processing is not good for final output. There is absolutely no luminance denoise applied, and about everything from the noise is sharpened.

Using extreme settings to actually see, look at what detail and masking settings of the sharpening (set 100 for testing) do to the background noise (Press alt key while you set masking to really see the magic).

Also look at what detail and contrast of the denoise settings can do.

All this can give or take you several stops of apparent noise performance.

Thank you for your very complete answer. I think i'm getting used to it, and plus i noticed that Lightroom adds a fair bit of sharpening when importing which contributes to the noise shown. As for exposure, yea, i noticed that as well when taking shoots on daylight. Images get a lot sharper and with less noise.

You need to play around with the masking slider to help reduce noise in areas of continuous tone such as skies etc.Also the detail slider can emphasise noise ,I tend to dial it back to around 10- 15 but that decision is very much image dependant.