32bit Tiffs with Transparancy

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  • Updated 11 months ago
Hey there,

i do a lot of 3D Renderings and get 32 Bit Images that need to be processed to 8Bit images. So my Workflow is to convert these Images to 32Bit Tiff with transparency and import them into Lightroom. This works very well. The only Problem is that i need them to look all the same. When i apply the settings of one image to another the colors are different. Sometimes it's only a variation in Brightness, but it would be very cool if i could get consistend conversion of these Files in Lightroom.

Does anyone experienced the same or knows a solution?

Thanks in advance
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Hesekiel2517

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Posted 12 months ago

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Hesekiel2517

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i thought that the transparency is the problem, but it happens also with regular 32bit tiff files. Very annoying... Is there somebody who knows a workaround?
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Todd Shaner, Champion

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See this post for a possible explanation and workarounds: https://forums.adobe.com/message/6420218#6420218
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Hesekiel2517

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Thank you for the quick answer! I don't think thats solves my problem though. I do like the tonemapping Lightroom applies. Thats the reason i bring the files into Lightroom. My problem is that Lightrooms Tonemapping is very different on different 32bit files. So for example if i import regular Raw Files and apply Colorcorrection every file looks the same. If i do this with 32Bit Tiff files every file is different.
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Todd Shaner, Champion

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It's probably due to the LR tone mapping process, which is non-linear. Pasting settings from a different image reveals this non-linearity. See if this works better: https://danielgroves.net/notebook/2015/02/colour-shift-lightroom
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Hesekiel2517

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Thank you for the tipp! Unfortunately this doesn't help either. I'm using Lightroom to tonemap my 32Bit Images and converting to 16Bit. By reducing to 16Bit in Photoshop (even by using smart objects) my images are clipping. The highlights and shadows cannot be recovered anymore so staying at 32Bit is crucial.
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Ronald Chambers

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Why don't you do a gamma change of 0.5 before moving from 32 bit to 16 bit. That should remove the Adobe factor.
RONC
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Hesekiel2517

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Thank you! That works! The only drawback is the extra step but i can live with that. Again thank you for your effort