selmslie Loc: Fernandina Beach, FL, USA

DxO PureRAW does something similar when it converts a 14-bit raw file to a 16-bit DNG. But the 17mb raw file gets turned into a 49mb DNG and the image is demosaiced and de-noised in the process. That's a lot of processing. No wonder it needs to be off most of the time.

You won't really get an improvement in dynamic range, especially if you start with 12-bit raw.

16-bit DNG

(Download)

R.G. Loc: Scotland

I'm not sure what your posted images are showing, but skewed colours in the deepest shadows in the raw file is a recognised phenomenon. It's the same skewing that you see with very high ISO values. Most commonly it's darks taking on a purple/magenta tint. Shadows being affected by ambient light is in addition to that effect.

selmslie Loc: Fernandina Beach, FL, USA

I have never seen (or heard of) skewed colors in the deepest shadows.

What I have seen is enough noise that I would not worry about the color.

larryepage Loc: North Texas area

Actually, you have seen it. You've even talked about it and given it a name.

When the white light from the sun enters the atmosphere, it gradually gets separated into two parts. A lot of the blue light is dispersed through the air. That's how the sky gets its color. The remaining portion of the light coming directly from the sun is left a little bit yellower, because of the removal of that blue light. Objects in direct sunlight are illuminated by light from the sun and from the sky, and appear "white." Those in the shade are illuminated by light from the sky plus some light that may be reflected from other objects. The net proportion of blue content in this light is higher than that in sunlight, and there is a significant shift on color toward blue. This is why you have the "Open Shade" white balance choice on your camera.

In the late afternoon, just before sunset, much of the sky is far from the sun and much less bright than usual. This reduces the blue portion of light and creates what you call "Golden Hour."

A few minutes later, the sun sets, taking with it all the light except for the blue light from the sky. This creates "Blue Hour."

On overcast days. the light all gets mixed back together before reaching the earth's surface. But sunlight is attenuated by the clouds much more than the light from sky. So there is a shift toward blue, but not as large as the one for open shade. That's why you have the "Cloudy" option on your white balance dial or menu/

Inderstand this simple duality of outdoor lighting can help solve lots of mysteries around color. It cn also allow you to use white balance adjustments intelligently and effectively.

selmslie Loc: Fernandina Beach, FL, USA

I already covered this in my post on page 8: https://www.uglyhedgehog.com/t-786580-8.html#14171057

The colors are different if the color of the incident light is different, not because they are in the shadows or the highlights.

Here is the original post with the deep shadows recovered. There is no color shift, just lots of grain at 100%.

(Download)

R.G. Loc: Scotland

It's the same skewing you get with very high ISO values. I've seen it referred to in several camera review videos. I saw it on the underside of the "mushroom" that the OP posted. The ambient light causes a blue tint to the shadows but some cameras cause a purple/magenta tint to the darkest areas - which you won't see unless you're using very high ISO values in shots involving deep shadows, or alternatively lifting deep shadows a lot. Perhaps your cameras are good enough to not suffer noticeably from that effect. Lots of cameras do.

CHG_CANON Loc: the Windy City

Edit your RAW to the desired result. That's why you captured in RAW, right?

selmslie Loc: Fernandina Beach, FL, USA

You can't believe something you see on the internet when you can't verify that the poster knows what he is talking about.

Try to reproduce the effect yourself. I can't.

Below is another shot of the same subject at ISO 12800 - no discoloration.

Full image with no shadow recovery

(Download)

100% view - lots of shadow recovery and plenty of noise

(Download)

CHG_CANON Loc: the Windy City

RAW lets each photographer decide for themselves: are you the finger or the button?

burkphoto Loc: High Point, NC

Yep. The new 25.2 MP m43 sensor is the best one yet for dynamic range, although it isn't stacked like the one in the OM Systems OM-1. (DR vs no rolling shutter...)

joecichjr Loc: Chicago S. Suburbs, Illinois, USA

Beautiful shot ☀️☀️☀️☀️

selmslie Loc: Fernandina Beach, FL, USA

Another test at ISO 12800 with the Z7.

Unaltered original

(Download)

A lot of shadow recovery - no color shifts, less noise than the Df

(Download)

Bill_de Loc: US

I hope everyone is viewing these images on a calibrated monitor. Otherwise, what's the point in discussing/arguing about the topic.



---

JD750 Loc: SoCal

I don’t know about everybody but I am.

There can be several issues (1) monitor color and (2) monitor brightness and (3) ambient room lighting (color and brightness).

Many people’s monitors are actually too bright because the ambient light level is high.

BebuLamar

My laptop is not calibrated because the color calibrator I have only work with the NEC monitors which I have on my desktop. My desktop is calibrated with the white point of 100nits.