Optolong H-Beta Filters for Astrophotography

Optolong H-Beta Filters for Astrophotography

Optolong H-Beta filters are designed to isolate the hydrogen beta line at 486.1nm in the spectrum of emission nebulae. The narrowband filter has a full width at half maximum (FWHM) of 9nm, which makes it ideal for astrophotography of emission nebulae. The filter has a high transmission rate, which ensures that the maximum amount of light is captured by the camera sensor.

The Optolong H-Beta filter is compatible with a range of telescopes, including refractors and reflectors, and can be used with DSLR and CCD cameras. It is an ideal tool for astrophotographers looking to capture stunning images of emission nebulae, such as the Horsehead Nebula, the California Nebula, and the Rosette Nebula.

Features of Optolong H-Beta Filters

Optolong H-Beta filters are made of high-quality optical glass and feature multiple layers of anti-reflection coatings. The coatings help to reduce reflections and glare, which can degrade the quality of the final image. The filter has a narrowband design, which means that it only allows a specific wavelength of light to pass through. This helps to reduce light pollution and improve the contrast of the final image.

The H-Beta filter has a thread size of 1.25 inches and 2 inches, making it compatible with a wide range of telescopes and cameras. It has a high transmission rate of up to 90%, ensuring that maximum light is captured by the camera sensor.

 How to Use Optolong H-Beta Filters

Using an Optolong H-Beta filter is easy. Simply attach the filter to the front of your camera lens or telescope and start taking photos. The narrowband design of the filter means that it only allows the hydrogen beta emission line to pass through, which results in a stunning image of the nebula.

When using the filter, it is important to remember to use longer exposure times to capture the maximum amount of light. The filter is also sensitive to temperature changes, so it is recommended to keep the filter at a constant temperature during the astrophotography session.