Wet-Gate Transfer: Overview
Wet-gate transfer immerses the film at the scanning aperture in a liquid whose refractive index closely matches the film base. The liquid fills surface scratches and scuffs so light is not scattered, reducing the visibility of base-side damage and cinch marks. It is invaluable for archival materials where physical repair is risky or impossible.
What It Fixes—and What It Doesn’t
Wet-gate excels at masking base scratches and abrasion; emulsion gouges, torn perf edges, and embedded dirt still require digital restoration. Liquids evaporate cleanly but demand strict handling protocols to avoid swelling or residue. Labs maintain filtration and recovery systems, and operators inspect for splices that could lift under immersion.
Image and Workflow Benefits
By mitigating bright scratch glints at scan time, wet-gate reduces the need for heavy digital paint-out, saving budget and preserving texture. It also improves registration accuracy for optical stabilization because tracking points are not sporadically occluded by white streaks.
Safety, Stock, and QC
Solvent compatibility varies by acetate, polyester, and nitrate bases; conservative soak times and temperature control are mandatory. After scanning, film is dried and re-canned with logs of every reel’s condition. QC compares dry-gate and wet-gate tests to justify liquid use scene by scene on fragile reels.
Wet-Gate Transfer: Related Terms
- 6K scan, color fading, vinegar syndrome, DPX/TIFF sequences.