I recently purchased a Nikon D4s & can't open my RAW files in CS3 or Lightroom, do I need a Photoshop upgrade. I noticed the D4s has an minimum ACR plugin requirement of 8. Thanks Kate
Either upgrade to PS-CS6 or PS-CC (and update either of those to ACR 8.x) or use the latest DNG Converter to create DNGs from the NEFs.
I believe the D4s is a very new camera, and needs ACR 8.4 (the very latest version as I type this).
Camera Raw plug-in | Supported cameras
You can not access the NEF files directly with CS3, and will have to install the free DNG converter.
Camera raw, DNG | Adobe Photoshop CC
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