TM-30 Minus Green Filter
TM-30 is a minus-green (magenta-balance) broadband filter that trims yellow-green to raise colour quality while keeping strong blue and red output—with a light violet clean-up for neutral whites and natural skin tones.
- Function: Targeted minus-green to improve TM-30/CRI without over-magenta shift
- Blue throughput: ~92–95 % T across 430–520 nm (preserves punch & headroom)
- Minus-green notch: Controlled ~40–45 % T centered 565–585 nm (neutralises LED/fluoro green)
- Red throughput: ~92–95 % T from 620–720 nm; gentle ease to ~68–70 % by ~780 nm
- Smooth profile: Low-ripple curve; small violet clean-up around ~400 nm with minimal exposure impact
- Construction & format: Durable dielectric on Borofloat®, Eagle XG, D263 T, or soda-lime • 5–450 mm • 0.21–3.8 mm • options: rear-AR & slight wedge
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By shaving the yellow-green band while keeping blue and red energy high, TM-30 boosts TM-30 (Rf/Rg) and CRI metrics and yields believable whites, rich reds, and flattering faces—without banding or pinkish casts.
Typical applications • Cinema/TV lighting (remove plus-green from LED/HMI; higher Rf/Rg) • Photography & events (quick magenta balance under mixed house lights) • Stage & architectural (reduce green spill; keep saturated colours vivid) • Retail & museums (truer product/art colour) • Machine vision (stabilise colour by taming mid-green).
Need test chips tomorrow or thousands next quarter? TM-30 filters are coated and cut-to-size (including dicing) to your exact spec—fast.
