Lightroom 4.1: Edit in CS5 filters in Filter menu greyed out when file is opened

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  • Problem
  • Updated 8 years ago
  • (Edited)
I'm running a Mac, Snow Leopard, NiK and on one plug ins, 4 GB ram
I had run Lightroom 3 in the past
no problem with passing a file from LR 3 to CS5
Now when i pass a file from LR 4 to CS5 - most of my filters are greyed out - i
believe a memory problem
I never had this problem in the past (with LR 3).
I checked Activity Monitor - and, it looks like i have plenty of CPU, plenty of
HD ( I have a terabyte)
most of my files are on an ehd
I lowered all of my performance numbers in CS5 preferences (history states, cache, amount of HD used, etc. no help.
yet, i can still take a LR 3 file - and, use it in CS5 - for filters
not a LR 4 file

any ideas?
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Deborah Anderson

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  • anxious

Posted 8 years ago

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Photo of Jeffrey Tranberry

Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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Official Response
You are passing a 16-bit images to Photoshop where before you were passing 8-bit images.

Many of Photoshop's filters only run on 8-bit images.

You can either choose Image>Mode>8 bits/channel or change the Bit Depth in the Preferences>External Editing... section of Lightroom to "8-bit"