Optolong L-eXtreme F2 Fast Filter

Unlock the mysteries of the night sky with the Optolong L-eXtreme F2 Fast 2-inch Filter, meticulously engineered for astrophotographers seeking unparalleled clarity and detail. This dual-band narrowband pass filter is specifically crafted for fast optical systems, delivering exceptional performance and vibrant celestial imagery.

Key Features:

1. Dual-Band Precision: The L-eXtreme F2 filter targets crucial astronomical spectral lines, including OIII (500.7 nm) and H-Alpha (656.28 nm), with an impressive FWHM of 7 nm. It accurately captures these emission lines at focal ratios ranging from f2 to f3.3, ensuring optimal performance in fast optical systems like RASA and HyperStar.

2. Ideal for Fast Optical Systems: Tailored for rapid imaging, the L-eXtreme F2 is perfect for users of fast focal ratio telescopes. Whether you're utilizing one-shot color astronomical cameras, monochrome astronomical cameras, or DSLRs, this filter enables quick acquisition of detailed deep-sky images, making it an essential tool for astrophotographers.

3. Anti-Light Pollution Technology: Say goodbye to unwanted background light and noise. The L-eXtreme F2 filter effectively blocks light pollution beyond the target celestial bodies, enhancing contrast and revealing intricate celestial details. This advanced technology ensures that your images are not affected by unwanted lights and skyglow, allowing you to capture stunning astrophotographs.

4. Precision Spectrum and Characteristics:

• Substrate: Optical Glass
• Thickness: 1.85mm
• FWHM: OIII 7nm, Ha 7nm
• Blocking Range: 300-1000nm
• Blocking Depth: >OD4
• Surface Quality: 60/40
• Transmitted Wavefront RMS: λ/4
• Parallelism: 30s

5. Cutting-Edge Coating Technology: Optolong's L-eXtreme F2 features multi-layer anti-reflection coating and non-cementing optical substrate coating. The filter adopts precision coating based on Ion-assisted deposition technology, ensuring durability, scratch resistance, and stability on the central wavelength despite temperature fluctuations. The planetary rotation system guarantees precision and homogeneity of coatings, ensuring high transmission values and optimal optical density.

Embrace the beauty of the cosmos and capture celestial wonders with unmatched precision. The Optolong L-eXtreme F2 Fast 2-inch Filter is your gateway to a universe of vibrant astrophotography. Transform your stargazing experience – order your L-eXtreme F2 filter today and embark on a journey of breathtaking cosmic exploration.