iOptron 1.25″ Filters H-alpha

Discover the power of H-alpha light
The iOptron 1.25 H-alpha filter lets you see the hidden beauty of hydrogen nebulae. This narrowband filter is specially designed to allow only the deep red light from the H-alpha emission line (656 nm) to pass through - exactly where nebulae light up brightly. This allows you to capture structures and glow that would remain invisible without this filter.

More contrast, less distracting light
With a narrow bandwidth of only 7 nanometers, the filter blocks unwanted ambient light and light pollution. Only the light that really counts reaches your sensor. That means brighter mists, deeper contrasts and much cleaner images - even when photographing under city skies.

Made for sharp, reliable results
The multiple coating prevents reflections and halos, keeping your shots clean, even at long exposure times. The aluminum frame feels sturdy and fits perfectly into any 1.25″ filter wheel or eyepiece mount. No distortion, no color errors - just pure clarity.

For those who want to see more than just stars
Use the iOptron H-alpha filter to bring emission nebulae to life. Think of the Veil Nebula, Orion Nebula or the Rosette Nebula - full of detail, texture and deep red tones. Ideal for astrophotographers who want to add depth and character to their deep-sky images.

Your advantage
The iOptron 1.25 H-alpha makes every image more powerful. Less noise, more detail, and colors that really speak. Perfect for nights when you want to capture the universe in full glow.

Specifications

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Optics

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Application