I read that in Lightroom 4 is possible to export reduced resolution raw files.
Does anybody know how to do it?
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Having done some research on the Adobe Lightroom help site I found this article on how to export to file.
I believe the feature you are referencing to is to do with
Enhanced DNG options
Thanks to Rob's links I found the solution.
Export the photo with the following settings:
For a Canon 7D raw files this process reduce the size at about the 25% of the original. I think I just found a good solution for bringing my photos with me on my laptop while keeping the original raws on my desktop computer.