Baader UV/IR Cut Filter 31.75 mm – CMOS Optimized

Baader UV/IR Cut Filter 31.75 mm – CMOS Optimized

DESCRIPTION
This 31.75 mm UV/IR Cut filter belongs to Baader's latest generation, engineered after two years of R&D for optimal use with CMOS sensors. It features Reflex-Blocker™ coating to suppress halos and Life-Coat™ technology for lifetime durability.
The filter passes 98% of visible light (420–685 nm) and blocks UV and IR to avoid star bloating common with red-sensitive CMOS or CCD sensors. It allows 1:1:1 exposure balance, aligned with CMOS quantum efficiency and SNR performance.
It includes blackened edges and a side indicator (black ring facing telescope) to reduce reflections and guide correct placement. Also suitable for CCD cameras.

TECHNICAL SPECIFICATIONS

• Brand: Baader

• Type: UV/IR Cut filter

• Diameter: 31.75 mm (1.25")

• Transmission: 98% from 420 to 685 nm

• Coatings: Reflex-Blocker™ (anti-halo), Life-Coat™ (lifetime protection)

• Optical compatibility: f/15 to f/1.8

• Optimized for: CMOS (also CCD compatible)

• Edges: blackened, orientation indicator

• Thickness: standard

• Thread: 1.25" (M28.5)