The Surface Imperfections Volume 1 library by David Gruwier is the original collection of 50+ premium tiled textures, featuring a mix of scratches, dust specs, smudges, fingerprints, hairs, residue, isolated fingerprints and even full palm print, all scanned from real surfaces and meticulously tiled.
Files are delivered in 4096x4096 16bit TIFF, and there are optional 2k 8bit tiff and 4k 8bit jpeg versions included as well.
Also included is a full, 2+ hour lesson by Grant Warwick of Mastering CGI, demonstrating how to use this library to create advanced, highly realistic materials. Grant covers everything need to know to make the most of these textures.
Unique to this pack, the raw, unprocessed 6K+ full color scans are also included as an optional download, so you can take full control if you wish. These are particularly useful for adding grime to camera lenses and lens flares when compositing VFX shots.