Optolong LRGB 2" filter set (SKU: OPL-LRGB-2)

The Optolong LRGB 2" filters are a professional astrophotography filter set designed specifically for use with monochrome cameras.

These filters boast exceptional performance, with a transmission efficiency surpassing 95% within their maximum transmission band. The use of high-quality glass substrates and a comprehensive multilayer coating ensures that the resulting images are vivid and highly contrasted.

One notable feature of the Optolong LRGB 2" filters is their carefully selected separation of transmission peaks for the green (G) and red (R) filters. This deliberate choice effectively eliminates signals originating from sodium lamps, the primary source of light pollution. As a result, astrophotographers can capture images with reduced interference from unwanted spectral lines.

Key Features of the Optolong LRGB 2" Filters:

High-quality optical glass substrate: The filters are constructed using top-grade optical glass, ensuring optimal performance and durability.

Effective suppression of sodium lamp emissions: The filters significantly reduce the impact of the main emission line (589 nm) from sodium lamps, minimizing light pollution.

Scratch-resistant multilayer anti-reflective coating: The filters are equipped with a robust coating that protects against scratches while minimizing reflections for improved image quality.

Technical Specifications:

• Filter Type: Bandpass filter
• Filter Diameter: 2"
• Filter Thickness: 2 mm
• Filter Material: Optical glass
• Maximum Transmission: > 95%
• Coating Type: Full multilayer coating (FMC)
• RGB Channels Weight: Approximately 1:1:1
• Frame Material: Black anodized aluminum

Components Included in the Set:

The Optolong LRGB 2" filter set consists of the following elements:

• Optolong LRGB 2" B Filter (Blue, OIII)
• Optolong LRGB 2" G Filter (Green, OIII)
• Optolong LRGB 2" R Filter (Red, Hα)
• Optolong LRGB 2" L Filter (Luminance, UV/IR cut)

With the Optolong LRGB 2" filters, astrophotographers can capture stunning images by leveraging their high transmission efficiency, optimized light pollution suppression, and durable construction. These filters are an invaluable tool for those seeking exceptional performance and quality in their astrophotography endeavors.