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andreap85809864
Participant
April 11, 2022
Answered

Camera Raw and 14 bit RAW files

  • April 11, 2022
  • 1 reply
  • 1712 views

Hi everybody, I need an advice about this.

I'm using a Sony camera that supports 14 bit raw files, but when I open Camera Raw, I see at the bottom Adobe RGB 1998 8 bit... 

 

 

Is there a 14 bit workspace mode?

I noticed that the only two options available are 8 or 16 bit.

 

I'm sorry, but I'm just a beginner, any help would be appreciated.

 

Thank you

 

Andrea

This topic has been closed for replies.
Correct answer TheDigitalDog

All high-bit data in Photoshop and ACR is 15 bits plus one level...done for algorithmic processing reasons. And since there really isn't a real life source of full 16-bit images, that's all the precision Photoshop/ACR needs.

So forget the reported depth of the camera and select 16-bit.

1 reply

TheDigitalDog
TheDigitalDogCorrect answer
Inspiring
April 11, 2022

All high-bit data in Photoshop and ACR is 15 bits plus one level...done for algorithmic processing reasons. And since there really isn't a real life source of full 16-bit images, that's all the precision Photoshop/ACR needs.

So forget the reported depth of the camera and select 16-bit.

Author “Color Management for Photographers" & "Photoshop CC Color Management/pluralsight"
    A
    andreap85809864Author
    Participant
    April 12, 2022

    Thanks. One more thing. I noticed that my camera delivers 350 ppi jpeg files.

    Should I edit my ACR workspace from 300 to 350 ppi as well?

     

    Thank you very much for your support

     

    Best

    Per Berntsen
    Community Expert
    Per BerntsenCommunity Expert
    Community Expert
    April 12, 2022

    PPI stands for Pixels Per Inch, and only comes into play when printing.

    Digital images don't have physical dimensions, and the PPI is used by printer drivers to calculate printed dimensions.

    If you have an image measuring 2400 x 3000 pixels with the PPI set to 300, it will print at 8 x 10 inches.

    2400/300 = 8, and 3000/300 = 10.

     

    For screen viewing, PPI is irrelevant. The image will display according to its pixel dimensions, regardless of the PPI value.

    When you export an image in Photoshop (or use Save for Web), the PPI value will be stripped out, because it is not required for screen viewing.

     

    Once an image is open in Photoshop, you can change the PPI value by going to Image > Image size.

    Make sure that Resample is unchecked, and you can see how printed dimensions change when you change the PPI.

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