On this page… When are smart previews useful? How do I build or discard smart previews? How do I check which photos have smart previews? Smart Previews contain partially processed raw data. They’re always 2560px along the longest edge, regardless of the original file resolution or your screen resolution. They’re stored in the Smart Previews.lrdata… Click to continue
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Premium Classic > Library – Previews > Smart Previews
