Used Baader Planetarium U-Filter (Venus, Ultraviolet, ZWL 350nm), 1.25"

Explore the celestial wonders with the 1.25" Venus and Ultraviolet U-Filter, 350nm CWL, a high-quality, durable product from the reputable brand, Baader Planetarium. This innovative filter is specifically designed for ultraviolet and Venus observation, making it an effective and versatile choice for both astrophotographers and amateur astronomers.

With a transmission peak of approximately 80% at CWL 350nm and a bandwidth of 60nm (320-380nm), this filter is capable of completely blocking the spectral range from 200nm to 1120nm. This ensures that only the desired wavelengths of light penetrate your camera lens or optical instrument, providing clear, detailed images of your celestial subjects.

The filter features a dielectric multi-coated coating on optically polished Schott glass UG-11. This enables shooting in the deep UV spectral region, a wavelength range that was previously inaccessible for amateur astronomers. Additionally, the Solar Calcium K-Line is within the passband of this filter, further expanding your astrophotography possibilities.

To ensure successful use of this filter, it is best paired with a UV sensitive imaging camera such as the SKYRIS 274M and a telescope of at least 5" diameter. Please note that Single Shot CCDs are not suitable for use with the U-Filter.

Experience the universe in a new light with the 1.25" Venus and Ultraviolet U-Filter, 350nm CWL, and capture the beauty of the cosmos like never before.