Banding when shooting sunsets?

[TheEyesHaveIt]

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Hi all,

I took my Q2 to Greece and overall, it was a great choice - so lightweight, the 28mm FOV was pretty spot on for what was needed for me, and a joy to shoot with. I did get dust in the EVF, so need to take it to the Leica store to figure that out. And the other issue is I'm noticing some banding when I shot into sunsets (See image - granted this is a couple of exposures blended, but I noticed it in the single DNG too). Have others experienced this?

Cheers!

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[jaapv]

I would be more concerned about the dust.,

[Leica Guy]

The dust in the EVF is a definite concern. Leica should fix that quickly.

I’ve never experienced any banding like you describe. When others have posted similar artifacts in the past, it’s been associated with being a jpg or 8-bit post processing space. What post processing program are you using? 

[TheEyesHaveIt]

Lightroom and Photoshop. All in 16 bit.

[Jared]

There are lots of internet tutorials on fixing this.  By the way, this can happen with any camera even shooting raw, so don’t worry about it.  The solution is actually to add a little noise to the sky.  Most people find the speckle tool the most effective.  It is just enough to break up the pattern.  Do a search on the words banding, sky, fix and you should turn up lots of quick videos on how to resolve this.  

[hdmesa]

4 hours ago, Jared said:

There are lots of internet tutorials on fixing this.  By the way, this can happen with any camera even shooting raw, so don’t worry about it.  The solution is actually to add a little noise to the sky.  Most people find the speckle tool the most effective.  It is just enough to break up the pattern.  Do a search on the words banding, sky, fix and you should turn up lots of quick videos on how to resolve this.  

This helps if the problem is you don't see banding in the original DNG but you do in the exported JPEG. Otherwise, you'd need to try reducing the saturation or contrast. However, it looks to me like what happens when the white balance on a sunset-light shot is a little too warm.

[mbphotox]

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Is the banding in the raw data? Highly unlikely...  

 

I guess, the reason is the presets/settings applied to render the preview.

[jaapv]

If the images have been reduced to 8 bits (possibly by the blending software)  posterisation is virtually inevitable. Images like these with large expanses of intensely coloured sky must be edited in 16 bits. Actually all images should be. Lightroom handles this automatically. 

[bags27]

I find this a complete (maybe too complete) explanation, as I do get banding when shooting big sky with my Q and developing in Adobe Camera Raw to Photoshop

https://www.slrlounge.com/remove-banding-photoshop/

[jaapv]

If you set the export settings in ACR (blue link under the image) to 16 bits, Adobe RGB, you’ll get considerably better results. Only “dumb down” to 8 bits and the colour space you need just before saving.