TMB Pro Series Duo-Band Nebula Imaging Filter

TMB Pro Series Duo-Band Nebula Imaging Filter

The TMB Pro Series Duo-Band Nebula Imaging Filter is designed for astrophotographers using colour cameras who want to capture emission nebulae in stunning detail without investing in a full mono camera setup. This dual-band filter works by letting through only two specific colours of light, Hα (656 nm) and OIII (500 nm), which are the wavelengths most emitted by many nebulae. By blocking most other light, including light pollution and moonlight, it makes faint nebulae stand out more clearly in your images. It works especially well on well-known targets such as the Orion Nebula, Carina Nebula, Lagoon Nebula, and Trifid Nebula, but will also enhance contrast on virtually any emission nebula across the sky.

Ideal for One-Shot Colour (OSC) cameras, the filter provides an easy way to explore narrowband imaging while retaining natural colour. Its precision optical design features finely polished Schott glass, double-sided anti-reflection coatings, and a robust anodised aluminium cell, ensuring excellent light transmission, minimal reflections, and long-term durability.

Available in standard 1.25” and 2” sizes, the TMB Pro Series Duo-Band Filter is compatible with almost all standard colour cameras and filter wheels, making it a practical solution for deep sky imaging in urban or light-polluted environments.

Key Features:

• Dual bandpass for Hα (656 nm) and OIII (500 nm)

• Enhances contrast of emission nebulae

• Reduces interference from moonlight and artificial light pollution

• High-quality Schott glass with anti-reflection coatings

• Robust CNC-machined anodised aluminium cell with laser-engraved markings

• Standard 1.25” or 2” sizing for wide compatibility