Alien Skin Exposure X4.5 adds LUTs support and more

Alien Skin Exposure X4 is one of our favourite Photoshop alternatives, offering all-in-one photo browsing, non-destructive editing and effects. It’s especially appealing to fans of old-school film and analog effects, with a large library of preset ‘looks’. This new Exposure X4.5 update extends its creative scope by adding support for LUTs.

LUT stands for ‘lookup table’. This is a kind of digital filter that ‘remaps’ existing colours and tones on to new values. LUTs are very popular in video and cinematography for giving movies distinctive and atmospheric looks, and they’ve recently been discovered by the photographic community too.

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Rod Lawton

Rod is an independent photography journalist and editor, and a long-standing Digital Camera World contributor, having previously worked as DCW's Group Reviews editor. Before that he has been technique editor on N-Photo, Head of Testing for the photography division and Camera Channel editor on TechRadar, as well as contributing to many other publications. He has been writing about photography technique, photo editing and digital cameras since they first appeared, and before that began his career writing about film photography. He has used and reviewed practically every interchangeable lens camera launched in the past 20 years, from entry-level DSLRs to medium format cameras, together with lenses, tripods, gimbals, light meters, camera bags and more. Rod has his own camera gear blog at but also writes about photo-editing applications and techniques at