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Canon R5 help...weird swirls in images

Started Oct 3, 2021 | Discussions thread
Quarkcharmed
Quarkcharmed Senior Member • Posts: 2,713
Re: Yep, Try Something other than Adobe for RAW conversion

Karl_Guttag wrote:

Quarkcharmed wrote:

Karl_Guttag wrote:

draacor wrote:

I actually get something similar but not with every shot. I think it has something to do with Lightroom. If I use DPP and save as tiff and import into Lightroom the issue goes away.

First, the circular ring pattern does not look like something a camera could do.

Second, time and again on this forum, people have found that Adobe's raw converter has serious problems, particularly with low light noise.

I haven't experienced such problems with the images from my R5 and LR/ACR.

Thrid, definitely try DPP4 and get a "baseline reading."

That's a good point.

Fourth, give DxO PureRAW or PL4 with DeepPrime a try (free trial and often sale). It is widely recognized as the best RAW converter for reducing noise while preserving detail. In my tests, DxO can be good for 2 to 3 stops over Adobe Camera RAW, which is just ridiculous. Adobe is not even trying with their RAW converter.

You don't get additional dynamic range by using a different raw converter. A stronger noise reduction could give you such impression.

I might have thought so too before running my own experiments. There are big differences between various Bayer to RAW conversion processes. DxO with DeepPrime will give BOTH better colors and better resolution a the same time. With Adobe RAW you have to trade color saturation and resolution for noise reduction.

DxO with DeepPrime changed the way I shoot is it so good with the R5. I don't mind pushing ISO if that is what is needed rather than say hoping I don't get subject motion blur by going to a slower shutter speed.

In the R5, ISOs up to 6400-12800 are usable, although for action in shots in low light I usually use ISO 800 as the R5 is basically ISO-invariant from ISO 800.

Here is a link to Jan Wegener talking about how much DxO (PureRAW which is the also from DxO and uses similar algorithms) improves noise over Adobe RAW: https://youtu.be/q-gMFMd9D7s?t=607

Here is another comparison: review: https://youtu.be/nn520b1mOas?t=167

From: https://www.dpreview.com/forums/post/65418038

Open to 100% to see the dramatic difference

Overall rendering is better with Adobe - skin tones etc. There's lots of colour noise which is easy to remove in Lightroom, I don't know why it wasn't done in the image in the left.

From: https://www.dpreview.com/forums/post/65405499

Some tests I ran about 7 months ago right after getting DxO PL4 compared to DPP4.

https://www.dpreview.com/forums/post/64948762

My shock was that DxO PL4 with DeepPrime was seeming to violate Nyquist by showing single-pixel detail. I think the reason it can do this and why it is so much better at preserving detail is that is has more "scope" in looking at many pixels and making better inferences as to what is color, what is detail, and what is noise.

See: https://www.dpreview.com/forums/post/64949671

 Quarkcharmed's gear list:Quarkcharmed's gear list
Canon EOS R5 Canon EF 70-200mm F2.8L IS II USM Canon EF 24-70mm F2.8L II USM Canon EF 16-35mm F4L IS USM Canon EF 50mm F1.8 STM
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