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Author Topic: ISO dependent defaults in the new ACR.  (Read 1404 times)

Redcrown

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ISO dependent defaults in the new ACR.
« on: June 05, 2020, 12:15:19 pm »

I upgraded to Photoshop 21.1.3 yesterday to get the new ACR (version 12.2.1.417) just to try out the new ISO dependent preset feature. I saw the Julieanne Kost post back in February and was mildly interested. The feature allows assigning default noise reduction (and other settings) during import based on ISO.

About 3 hours later, after a lot of hacking xml code with Notepad, I got it working. What a Hoot! As an old, former programmer, I actually enjoy hacking code. But I can't imagine how the non technical users will deal with this.

Help from Adobe is sketchy at best, but I found an excellent blog post that explains it very well.

https://geraldbakker.nl/tutorials-actions/how-to-set-raw-defaults.html

The author spends a lot of time bashing Adobe, which they deserve, but then gives you everything you need to know. I spend a lot of time now shooting with auto ISO, so I get values across the full range. Having default noise reduction, and maybe sharpening, is handy. I'm curious why this has received so little attention since the release in February.
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kers

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Re: ISO dependent defaults in the new ACR.
« Reply #1 on: June 05, 2020, 12:26:39 pm »

Started a topic on it here:

https://forum.luminous-landscape.com/index.php?topic=133917.0

I already had all the iso defaults at 1/3 stop made - so it really broke my workflow in a bad way.
The solution i found to get back to where i was- was so comprehensive and ill documented that i wanted to wait till they made a front-end solution- not a hacking one.
I am still waiting for it. Untill then i stick to vs 19.1.

but i will try your link- a dutch link i see...
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Pieter Kers
www.beeld.nu/la

john beardsworth

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Re: ISO dependent defaults in the new ACR.
« Reply #2 on: June 05, 2020, 12:35:12 pm »

But I can't imagine how the non technical users will deal with this.

I agree, and I am surprised it was released like this, but the new method is better than the old.

See this web page which writes the xmp https://jakub.serych.cz/W/lrpreset/ and my approach based on sampling already-edited photos http://lightroomsolutions.com/iso-dependent-presets/
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Redcrown

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Re: ISO dependent defaults in the new ACR.
« Reply #3 on: June 05, 2020, 01:38:36 pm »

Started a topic on it here:

https://forum.luminous-landscape.com/index.php?topic=133917.0

Sorry I missed that. I don't use LR, so I don't pay much attention to that forum.

Now that I've got it working, I'd like to test the interpolation to see if it's simply linear. Has anybody done that analysis?
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john beardsworth

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Re: ISO dependent defaults in the new ACR.
« Reply #4 on: June 05, 2020, 01:55:56 pm »

You wouldn't be able to use my method, but the other one would produce the xmp file.

The interpolation is not linear - it's stop based.
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