5 Replies Latest reply on Apr 3, 2016 8:48 PM by JimHess

    1:1 previews

    ZdC Level 1

      Please can someone else the difference between 1:1 previews and smart previews?  What are they both used for?

        • 1. Re: 1:1 previews
          JimHess Adobe Community Professional & MVP

          1:1 previews are used by the library module. They will provide the highest quality display in the library module. They are NOT used in the develop module. Smart previews are previews that you can make adjustments to when the master images are off-line. For instance, they could be on an external hard drive which is not connected. Or, they could be on your "master" computer, and you can create a catalog and includes Smart previews that you can work on on your laptop when you are traveling. When the master photos and the Smart previews are both available again, all adjustments made to the Smart previews will be applied to the master images.

          • 2. Re: 1:1 previews
            ZdC Level 1

            Jim thanks for answering this but what does the develop module use then?   Can't be smart previews as not all people actually create smart previews?

            • 3. Re: 1:1 previews
              JimHess Adobe Community Professional & MVP

              The develop module generates its own preview of the raw image data if the master images are available. If not, and there are smart previews, then it will use the smart previews.

              • 4. Re: 1:1 previews
                ZdC Level 1

                So 1:1 previews are generated automatically, right?  What does 1:1 really mean? 

                • 5. Re: 1:1 previews
                  JimHess Adobe Community Professional & MVP

                  1:1 previews are generated automatically if that is what you have chosen. If you do a lot of work in the library module you might want to have 1:1 previews. That means they are full-sized previews. That means they take up most space. I don't do a lot of work in the library module so I have Lightroom configured to generate a much smaller preview.