To apply Enable Profile Corrections and Remove Chromatic Aberration to all images change the default processing settings using the following steps:
1) Select a raw file and remove all settings by clicking the Reset button.
2) In the Lens Correction panel, check both the Enable Profile Corrections and Remove Chromatic Aberration options. Changes are not limited to Lens Correction. You could, for example, change the default profile used in the Camera Calibration setting or the amount of Noise Reduction – just remember that these settings will be applied to ALL future imported images.
3) Choose Develop > Set Default Settings > Update to Current Settings. Note: Although the dialog says that the changes are not Undoable, it only means that the shortcut Command + Z (Mac) | Control + Z (Win) won’t undo the settings. Don’t worry, you can return to the dialog at any time and choose Restore Adobe Default Settings if needed.
Once the defaults are changed, any images taken with that camera model will automatically have the Enable Profile Corrections and Remove Chromatic Aberration settings applied when the are imported into Lightroom (any images that are already in the catalog remain as they were). Because you are simply “Enabling” Profile Corrections, if you change lenses, Lightroom will automatically look for and apply the appropriate lens correction profile based on the EXIF data in the photo. Note: For the small number of images that I don’t want to apply these setting to, I can easily disable (uncheck) the Lens Correction options or create a preset to apply both options in one click.
If you are using multiple camera models, you will need to customize the default settings for each model (by following the above steps for each camera model).
It is also possible to save different setting for each camera based on ISO settings and serial number (Preferences > Presets > Make defaults specific to camera serial number and/or Make defaults specific to camera ISO setting). This can be useful when using custom camera profiles and/or changing Noise Reduction options, for example.
If you import 1000 images but will only end up using 10 of them, adding these corrections on import will increase the amount of time it takes to render previews (how much time depends on your system, file size etc.). If you notice a significant decrease in performance, you might prefer to create a preset instead, and apply it to only your best images.
Option (Mac) | Alt (Win) toggles the Reset button to Set Default.
Customizing the default settings in either Lightroom or Adobe Camera Raw, defines the settings for both products.