Baader Narrowband OIII Filter CMOS f/2 Highspeed 31mm

The Baader OIII CMOS f/2 Highspeed 31mm delivers optimum transmission of the OIII spectrum at 500.7 nm, specially adapted for fast optics up to f/2. Thanks to Baader's advanced interference coating, the wavelength shift that occurs with steep light cones is fully compensated.

The result: sharp, high-contrast images of nebulae, without halos or color aberrations. Ideal for astrophotographers with HyperStar or RASA systems who demand maximum efficiency.

Application:
Suitable for:

• Veil Nebula, Helix Nebula, M27 Dumbbell
• RASA 8/11″, Newton f/3-f/2
• Filter wheels with 31 mm holder

Specifications:
Type: OIII CMOS f/2 High-speed
Diameter: 31 mm (without mount)
Wavelength: 500.7 nm
Bandwidth: 6.5 nm
Transmission:>90%
Housing: Ungevatt
Suitable for: fast f/2 systems
Country of origin: Germany