The Negative Supply 4×5 Light Source Basic MK2 – 97 CRI is a film-scanning light source for 35mm, 120, and 4×5 sheet film. Its illuminated area covers formats up to 4×5, while a custom internal acrylic is designed to improve brightness, color rendering, and light uniformity.

Built for consistent scanning sessions

Negative Supply describes the MK2 as over two stops brighter than the previous model, with carbon composite construction and a design intended to dissipate heat during extended scanning sessions. The manufacturer reports 97.0 CRI and 98.0 TLCI from its testing.

Fits into a 4×5 scanning workflow

The Light Source Basic MK2 accepts Negative Supply adapter plates for film carriers and is backwards compatible with accessories for the original 4×5 Light Source Basic. Pair it with the optional Pro Mount MK2 when you need to mask light below the source, add leveling capability, or use an anti-static dust brush.