Antlia LRGB Dark Series Filter Set 36 mm (4 filters) all astro filters opinie

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The Antlia LRGB Dark series 36 mm is a set of four unmounted filters designed for deep-sky astrophotography, including Luminance, Red, Green and Blue filters. The LRGB Dark series offers high contrast and excellent signal-to-noise performance, using quartz-glass substrates with ultra-low thermal expansion to ensure stable star shapes under varying environmental conditions.

Key features

• complete set of four filters: Luminance (UV/IR Cut), Red, Green, Blue
• precisely defined spectral passbands: L 400–710 nm, R 595–705 nm, G 495–605 nm, B 410–505 nm
• high peak transmission: L/R/G about 97%, B about 95%
• quartz-glass substrate with extremely low thermal expansion
• out-of-band blocking ≥OD4.5 (0.005%) from 300 to 1000 nm
• double-sided fine polishing to ensure parfocality across the set
• advanced coatings applied to the substrate edge for maximum uniformity
• highly scratch-resistant coatings designed for safe cleaning
• unmounted filters feature fully blackened edges to suppress stray reflections
• parfocal and substrate-compatible with Antlia SHO 2.5 nm filters
• intended for astrophotography, not recommended for visual observing

Included items

• Antlia Luminance LRGB Dark series 36 mm (unmounted, blackened edges)
• Antlia Red LRGB Dark series 36 mm (unmounted, blackened edges)
• Antlia Green LRGB Dark series 36 mm (unmounted, blackened edges)
• Antlia Blue LRGB Dark series 36 mm (unmounted, blackened edges)

Technical specifications

• type: LRGB filter set for astrophotography (L, R, G, B)
• diameter: 36 mm (unmounted)
• Luminance passband: 400–710 nm (UV/IR cut)
• Red passband: 595–705 nm
• Green passband: 495–605 nm
• Blue passband: 410–505 nm
• peak transmission: L/R/G about 97%, B about 95%
• off-band blocking: ≥OD4.5 (0.005%)
• substrate: quartz glass
• filter thickness: 2.0 mm ±0.05 mm
• edge treatment: blackened edges (all unmounted filters)
• optic finish: double-sided fine polishing, edge-to-edge coatings
• not recommended uses: solar imaging, visual observing

Warning: NEVER look at the Sun with the Antlia LRGB Dark series 36 mm filter set. Ignoring this warning can cause permanent eye damage.