Reveal More of the Sun – Enhanced Contrast with the LS40FHa Double-Stack Filter

Enhance your solar viewing experience with the LUNT LS40FHa double-stack filter, designed specifically for the LS40THa solar telescope. This add-on filter narrows the bandwidth of the H-alpha system to less than 0.55 Ångström, dramatically improving image contrast and revealing finer surface features on the Sun.

What It Does:

• Reduces the bandwidth to <0.55 Å, increasing contrast in H-alpha light.
• Reveals more detailed solar structures such as filaments, prominences, and surface granulation.
• Improves visibility of subtle features that are less defined in single-stack setups.
• Uses mechanical tilt-tuning for precise adjustment and optimal performance.

Why You Should Buy It:

• More Detail: See significantly more contrast and structure on the solar disc.
• Professional-Grade Performance: Ideal for serious solar observers seeking a deeper level of detail.
• Seamless Integration: Designed specifically for the LS40THa—compact, lightweight, and easy to install.
• Built to Last: High-quality aluminium and glass construction with a 5-year warranty for peace of mind.

If you already own the LUNT LS40THa, this double-stack filter is the most effective way to upgrade your solar observations and get the most from your telescope.