I have just started using Lightroom 3 after hearing a lot of recommendation from others. I have imported by originals (some RAW, some jpeg) into the Lightroom catalog and it all works fine.
However, since my laptop's harddisk space is about to run out I want to move those originals into an external harddisk while not changing my Lightroom catalog. Can I do it? Will I still be able to work with the images without having to connect this external harddisk?
I just need to know how this works and how do I do it safely so that I don't accidentally lose all the changes I made into the images in Lightroom.