How can I export reduced resolution RAW files from Lightroom?

Question

I read that in Lightroom 4 is possible to export reduced resolution raw files.

Does anybody know how to do it?

Answer 1

Having done some research on the Adobe Lightroom help site I found this article on how to export to file.

http://help.adobe.com/en_US/lightroom/using/WS75C39DDC-B701-4840-A703-0755A5C04878.html

I believe the feature you are referencing to is to do with

Enhanced DNG options

• Resolution reduction via export provides the ability to share lower resolution versions of the original raw file without losing the capabilities offered by raw.

http://blogs.adobe.com/lightroomjournal/2012/01/lr4betanowavailable.html

Answer 2

Thanks to Rob's links I found the solution.

Export the photo with the following settings:

• Image format: DNG
• Compatibility: Camera Raw 6.6 and later (required otherwise the lossy compression doesn't show)
• Use Lossy Compression: Checked

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.