Lightroom external editor settings
01 what to edit
When using JPEGS or TIFFS Lightroom enables you to edit a copy or the original, but with Raw files you’re always exporting a processed copy of the Raw photograph.
02 file format
You can choose between TIFF, JPEG and Photoshop (PSD) formats. TIFF or PSD is best for preserving the maximum quality in your external editor or plug-in, whereas JPEG is for sharing.
03 Color space
Without getting too heavily into colour management, SRGB is an effective lowest common denominator, while Adobe RGB or Profotorgb are technically larger colour spaces.
04 Bit depth
The TIFF and PSD options will let you choose either 8-bit or 16-bit images. 16-bit gives bigger files, but it’s best for preserving a photograph’s quality when heavily editing.