second.lux
Kotaro Iwata
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About this app
second.lux is a camera and photo development app for iPhone. Shape the color and tone of your photos using a process modeled on film and photographic printing. Adjust lens filters, halation, and grain to change the look and feel of your photos. Shoot DNG RAW photos using the Fast RAW Finder. On devices that support Apple Log, you can also choose Live Development Preview to preview the developed image as you shoot. You can also import photos and RAW images from your photo library for development. Save and share your finished photos.
What's new
Version 3.5 · Nov 13, 2026
second.lux 3.5 introduces a redesigned look system and an improved editing experience. - Redesigned look system: Choose WARM, NATURAL, COOL, or PURE, then drag directly on your photo to fine-tune its colors. KELVIN and B&W are available under Classic. - Introducing Reprint: Develop your photo in two stages with the same look to explore new color and tonal variations. - UI improvements: Refined the editor, camera, frame and margin controls, and settings, with improved previews and before-and-after comparisons. Note: Updates to image processing may change how photos appear when rendered with settings saved in earlier versions.
