When are Adobe going to fix the current problem of Adobe Camera Raw not working with 32 bit files.

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I to convert to HDR using the 32 bit Floating White Point method in Camera Raw but Camera raw has stopped accepting 32 bit files. I have already spoken to an adobe operator via the phone and was told it would be fixed in the next Camera Raw update. There have been two new updates, but the latest camera Raw will still not work with 32 bit files.
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Derek Doar

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Posted 8 months ago

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Todd Shaner, Champion

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See the explanation with workarounds at the below link. Is this what you are talking about or some other issue?

https://helpx.adobe.com/photoshop/kb/command-camera-raw-filter-not-available-merge-hdr-pro.html

I haven't seen any official statement concerning restoring this capability.
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Derek Doar

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If you select one of your images and change it to 32 bit you will find that photoshop Camera raw cannot open it. I have my preferences set for camera raw to open 32 bit files but it will not open.
If you want to try this out, change the bit depth of one of your image to 32 bit in Photoshop and go to Filter/Camera Raw Filter and you it see it is greyed out. The workaround does not work. I am trying to use the merge to HDR pro version which creates a 32 bit whitepoint file. The reason that I used the HDR conversion version which uses a 32 bit file is because that version lets you decide which frame you use to Remove Ghosting and that is better for moving water images in my opinion
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Todd Shaner, Champion

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I'm not seeing this issue on my Windows 7 system with ACR 9.12.1 and LR CC2015.12.1. Here's a 32bit HDR TIFF file created using LR's Edit In> Merge to HDR Pro in Photoshop opened in ACR and LR. As you can see in the Bridge screenshot it is 32bit

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Derek Doar

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Hi Todd
Can you please follow my Tutorial 16 on my website and see if it works for you?
http://www.ddimages.co.uk/photoshop%20tutorials.html

I normally select 5 bracketed DNG images in Adobe Bridge then go to Tools/Photoshop/Merge to HDR pro.
I then select 32 bit mode and tick the Remove Ghosts box. I then click the Tone in ACR button and it should merge the files in ACR but I get the warning, The Command "Camera Raw Filter" is not currently available . I have just tried it again but it still will not work.
I am using Windows 10 Pro system with ACR 9.12.1
Derek
(Edited)
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Todd Shaner, Champion

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I can confirm what you are seeing when 'Complete Toning In Adobe Camera Raw' is checked. Here's what it says at the link I provided:

https://helpx.adobe.com/photoshop/kb/command-camera-raw-filter-not-available-merge-hdr-pro.html

Method 5: Use recommended settings for Photoshop's Merge To HDR Pro feature

When using Photoshop's Merge to HDR Pro feature, we recommend that you use either the 8-bit or 16-bit mode (with Photoshop's built-in tone mapping options), or 32-bit mode with Complete Toning In Adobe Camera Raw deselected. You might encounter issues with the Complete Toning In Adobe Camera Raw workflow at the moment. Adobe is considering fixing this workflow in a future Photoshop release.

What works for me is to NOT check 'Complete Toning In Adobe Camera Raw' and then save the resulting 32bit PS document to TIFF file format. You can now open that TIFF file in ACR with no issues. Does that work for you?
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Derek Doar

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I did exactly as you described  with Complete Toning In Adobe Camera Raw deselect and ended up with the 32 Tiff file but not tone mapped in ACR. 
But when I tried to open the 32 bit file in ACR the Filter/Camera Raw Filter is still greyed out. 

The problem seems to be that I cannot get ACR to accept any 32 bit files.

Derek
(Edited)
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Todd Shaner, Champion

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Derek, please read the entire contents at the link I posted. Adobe has made these changes to the HDR workflow for reasons that aren't clear to me since I primarily use LR Merge to HDR. It creates a 16 bit Floating Point DNG file, which works quite well.

Anyhow, you need to think out-of-the-box to get it to work NOW. Mind you I rarely use PS/ACR for HDRs, but give this a try. After you save the 32bit TIFF file, close it, and open it from Bridge with right-click 'Open in Camera Raw. After applying Toning in ACR hit the 'Save' button to write the settings to XMP metadata in the TIFF file. Now every time you open the file in PS it will automatically open in ACR...at least it does for me!

CORRECTION: You need to have the following Camera Raw Preference selected for the 32bit HDR TIFF file with toning settings to open in ACR automatically:

(Edited)
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Derek Doar

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Todd, you are a star.
If I now go to Tools/Photposhop/Merge to HDR in bridge and select the 32 bit floating white point option without ticking the Complete toning in Adobe Camera Raw. I then save the file as a tiff instead of a .psd file. I can then right click on the Tiff file and select "Open in Camera Raw" where I can complete the toning. (Saving the file as a PSD file does not give me the "Open in Camera Raw" option)
You have now helped me to effect a workaround with the same outcome as I am used to which allows me to choose the frame that I want for Ghosting removal. This is important when doing HDR images of moving water as I can then mostly choose the frame in which I like the effect of the water flow. (This doesn't always work but in the main it does.)

When I have completed the toning, I can now output the file from ACR into photoshop as a PSD smart object.

Many Thanks Todd 
Regards
Derek
(Edited)
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Todd Shaner, Champion

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Derek glad to help. Adobe's reasoning for this change is "to prevent unexpected visual mismatches between Camera Raw and Photoshop." To be honest I think most people were already aware of differences between editing an HDR image file directly in PS vs ACR. Like I said most of my work is done inside LR so perhaps I'm not seeing what Adobe is talking about. Anyhow the differences I observe are fairly small and can be easily "corrected" using the editing tools available in ACR or LR. What I'd like to see fixed is a bug that causes the PS Photomerge HDR TIFF file to lose Red color saturation if even a very small amount of Color NR is applied using LR or ACR. The ACR and LR Photomerge HDR DNG file does not exhibit this issue. CORRECTION: The LR Photomerge HDR DNG file also loses Red color saturation, but only at Color NR levels of 25 and higher. Just a warning if you weren't aware of the issue:

https://forums.adobe.com/message/8372887#8372887
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