Daystar Instruments COMBO QUARK* Hydrogen Alpha "Eyepiece

The Daystar COMBO QUARK Hydrogen Alpha “Eyepiece” is a professional-grade solar filter designed for advanced observers and imagers who want full flexibility in configuring their H-alpha setup. Unlike the standard Quark models, the COMBO version is intended for use with external telecentric or barlow systems, allowing users to fine-tune magnification, f-ratio, and optical spacing to suit their specific refractor or imaging train.

The COMBO Quark integrates a high-quality Daystar etalon and blocking filter into a single compact unit that fits into your telescope’s focuser like a traditional eyepiece. It features precise electronic temperature regulation to maintain stable, high-contrast Hydrogen Alpha performance throughout observing or imaging sessions. With simple 5V USB power and no additional complex components required, the COMBO Quark offers a clean, efficient way to build a customized H-alpha system.

This model is ideal for refractors operating at longer focal ratios (typically f/15 to f/30 once optical accessories are applied), making it a preferred choice for experienced solar observers who want maximum control over their setup.

Key Features
• Professional-grade Hydrogen Alpha filter system for customized solar setups
• Designed for use with external telecentric or barlow optics
• Suitable for refractors configured to f/15–f/30 with appropriate accessories
• Integrated etalon and blocking filter in a compact eyepiece-style body
• Electronic temperature control ensures stable, consistent bandpass performance
• Fits 1.25" eyepiece holders with 2" nosepiece for broad compatibility
• Powered via 5V USB for simple and reliable operation

The Daystar COMBO QUARK H-alpha “Eyepiece” offers unmatched flexibility for building high-performance solar observation and imaging systems, making it an excellent choice for dedicated solar enthusiasts and advanced astrophotographers.