
Library > Previews > Generate Smart Previews to…well… generate them for the selected Photos This is because I use Photo Mechanic to import, tag, cull and organise my RAW files… but that’s a different post entirely.

I have my Lightroom set to generate them on import. Seriously though turn them on and thank me later.

Which is good, since the HDD they are on can’t wear out/fail on you if it isn’t spinning so much. This means, your RAW files (which you should have sitting on a different HDD/SDD anyway, don’t need to be connected for MOST of the time. That’s almost enough for all modern day applications (web, social media and even small scale prints!). You can export JPEGs from Smart Previews in a size up to 2500px on the long side.No hassle… I’ve NEVER had a Smart Preview fail on me. they will automatically synchronise with the larger RAW files when these get connected.they are smaller resolution RAW files, meaning they are much easier for your computer to handle.You can edit you RAW files without actually having access to them!

But the main difference between Smart Previews and normal Previews is that Smart Previews are editable files. What are Smart Previews? they are smaller DNG version of your images and they sit alongside your Lightroom Catalog File. Ok, if you’re not using Smart Previews you’re probably losing out on 50% efficiency in Lightroom.
