Questions on using Sony a6000 raw files


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RallyRolly
Questions on using Sony a6000 raw files

I recently wanted to learn how to work with raw files instead of just using my camera's jpg output, which is how I stumbled upon LightZone. I'm using LightZone 4.1.5 (bd557dc) which I believe is the newest version. I have been looking through the tutorial videos, which are quite useful for a newbie, but I'm having some problems working with the raw file from my camera (Sony ILCE-6000). All of the files I load for editing into LightZone seem to have a very strong greenish tint.  

For examble, if I download this studio reference image from imaging-resource http://216.18.212.226/PRODS/sony-a6000/FULLRES/A6000hVFAI00100.ARW. When I try to edit it, the MacBeth color swatch (if those are the right terms) doesn't really even look close to the result from the camera's jpg. The LightZone edited raw file also doesn't match the reported colors that the MacBeth tiles should be in real life http://www.rmimaging.com/information/colorchecker.html (I assume this is a reasonable check, I really don't know).

Is this an expected result, or is there some issue in how the files are being processed? At first I thought that I needed to create a Raw Tone Curve, but there seems to be one already for my camera, so I'm not really sure what to do.

 

Jacal
The embedded jpg is heavily

The embedded jpg is heavily processed in-camera even with most neutral settings, but LightZone's interpretation actually looks quite dull and less than optimal. You can try to make your own raw tone curve (and, if happy with it, publish it here) or a starting-point style.

 

For comparison, here is how different programs render the sample file (I have also added a screenshot for my humble "rebel" camera):

 

https://app.box.com/s/oumkaa4597ho1bcrwpmj9xgprcgqkwk8

 

Mart

 

RallyRolly
I tried following the raw tone curve

I tried following the raw tone curve creation steps here https://github.com/Aries85/LightZone/wiki/Creating-Raw-Tone-Curves. But that seems to only target the luminosity of the image, so that wouldn't change the colors of the image, right?

There are several panes in the image that should be pure white, I believe, and they aren't, so that would mean the white point is incorrect?  Could it be that Lightzone isn't correctly receiving/interpreting the white point from the raw file?