Daystar Filters QUARK PROMINENCE Filter

Daystar Filters QUARK PROMINENCE Filter

• First Hydrogen Alpha "Eyepiece" for Prominence Viewing: Daystar Instruments QUARK introduces a specialized eyepiece designed for observing solar prominences.
• All-In-One Design: Combines a telecentric barlow, adapters, snouts, and Daystar hydrogen alpha filter into a single, efficient assembly.
• Affordable High-Quality Optics: Enjoy DayStar's renowned optics at an accessible price point, thanks to design efficiency and optimization.
• Model Options: Available in "prominence" or "chromosphere" models, each offered at the same competitive price.
• Easy to Use: Designed for refractors of F/4 to F/9. Simple setup involves inserting in the diagonal, adding an eyepiece, and viewing.
• Custom Telecentric Barlow Lens: Features a Daystar Instruments 4.2X telecentric barlow lens, fully optimized for the Hydrogen Alpha wavelength, ensuring superior field flatness.
• Variable Filter Bandpass: Filter bandpass varies based on telescope application, qualified for either prominence or surface (chromosphere) observation.
• User-Focused Design: Eliminates the need for additional adapters, integrating all components into a lightweight, eyepiece-sized device.
• Energy Efficient: Reduced power consumption allows for all-day operation on a small, optional palm-sized battery pack.
• Enhanced Imaging Features: Includes baffles for increased contrast and AR coatings optimized for 656nm wavelength.
• Eyepiece Compatibility: Offers 1.25" or 2.0" combo eyepiece snouts with safety indent slot for easy diagonal insertion.
• Accessory Options: Standard 1.25" eyepiece drawtube output, compatible with optional 2" and SCT accessories.
• Protective and Adjustable Features: Brass compression ring for eyepiece protection, tuning knob for wing shifting, LED indicators for operational status.
• Warranty and Power: Comes with a 5-year warranty, uses USB power (5v, 1.5amp), includes 90-240VAC wall adapter with international plug adapters.
• Optimal Performance Range: Best suited for F/4 - F/8 refractors, allowing full disk viewing on refractors up to ~450mm focal length.
• Convenient Storage: Ships in a Twist-Case for safe, dust-free storage.
• Application Note: Not suitable for off-axis applications.