2-Inch UV IR Cut Filter for Digital Astrophotography

Capture sharper, higher-contrast astronomical images with this 2-inch UV/IR cut filter, designed for digital astrophotography and CCD camera setups. Its carefully controlled light transmission helps reduce unwanted wavelengths while preserving important deep-sky details.

Key Features

• 2-inch optical filter provides broad compatibility with suitable astronomy equipment
• UV/IR cut design helps block unwanted ultraviolet and infrared wavelengths
• High transmission at key astronomical wavelengths helps preserve image brightness and detail
• Approximately 96% transmission at 486nm for H-beta
• Approximately 95% transmission at 496nm for OIII
• Approximately 92.5% transmission at 501nm for OIII
• Approximately 98% transmission at 656nm for H-alpha
• Transmission range passes approximately 450–520nm and wavelengths from 620nm
• Designed for digital astrophotography and CCD imaging
• Suitable as an all-round deep-sky filter, including for smaller telescopes
• Diffraction-limited optical performance helps minimise impact on telescope image quality
• Scratch-resistant construction provides enhanced durability during regular handling
• Resistant to humidity and ageing for dependable long-term use
• High-quality optical material helps maintain the performance of compatible telescope systems
• Parfocal design allows convenient use alongside compatible filters
• Hardened multi-coating supports efficient light transmission and image quality
• Supplied with a protective storage case for safer transport and storage

Specifications

• Product Type: UV/IR Cut Astronomical Filter
• Application: Digital Astrophotography / CCD Imaging
• Filter Size: 2 inches
• Diameter: 50.8mm
• Glass Thickness: 1.85mm
• H-Beta Transmission: Approximately 96% at 486nm
• OIII Transmission: Approximately 95% at 496nm
• OIII Transmission: Approximately 92.5% at 501nm
• H-Alpha Transmission: Approximately 98% at 656nm
• Transmission Range: Approximately 450–520nm and from 620nm
• Optical Design: Diffraction Limited
• Coating: Hardened Multi-Coating
• Features: UV/IR Blocking, Scratch Resistant, Humidity Resistant, Ageing Resistant
• Compatibility: Suitable for compatible 2-inch astronomy equipment

Package Contents

• 1 x 2 Inch UV/IR Cut Astronomical Filter
• 1 x Protective Plastic Storage Case

What Makes This a Smart Buy:
Designed to improve control over unwanted wavelengths without compromising telescope performance, this filter is a practical addition to digital astrophotography setups. Its durable construction, broad deep-sky application and protective case make it a useful choice for both advanced amateurs and serious astronomy enthusiasts.