October 19, 2008
Lightroom and CS4
A few people have expressed an interest in how Lightroom will handle the installation of Photoshop CS4. When CS4 is installed, Lightroom automatically detects it and updates the Edit in Photoshop menu to reflect this. No user intervention should be necessary. There are quite a few changes in Photoshop CS4, so users may feel the need to leave CS3 installed. You can still use CS3 as an External Editor, in which case the old ‘Edit with Lightroom Adjustments’ dialog will appear, and an intermediate file will be created.
All is well with this unless you install LR2 and CS4 on Vista64. Then LR defaults to calling the 64 bit version of CS4 which, sadly, does not support all those lovely extensions you rely on so much. And there seems no way to adjust it otherwise.
The only workaround I have found is to launch the 32-bit version of CS4 first. If PS is already running, LR seems to just call it as usual rather than load a new copy.
Bluebird, this makes perfect sense to me. Thanks for pointing out a workaround though!
Or, why not just the external editor to the 32 bit version of Photoshop CS4. I just added the external editor to point to X86 folder.
I.E. C:\Program Files (x86)\Adobe\Adobe Photoshop CS4\photoshop.exe
Than s simple ctrl-lt-e , calls up the 32 bit version of CS4.