NPB - Narrow Pass Band Nebula (496BP22) 1.25 Astronomy Filter

The NPB - Narrow Pass Band Nebula (496BP22) 1.25 Astronomy Filter is a high-quality optical component designed for astronomy applications, specifically for observing narrow passband nebulae. This filter is sourced from Omega Optical, a renowned vendor known for their precision optical elements.

The filter is a Bandpass Filter, a type that allows only a specific range of wavelengths to pass through while blocking out others. In this case, the filter has a central wavelength (CWL) of 496 nanometers, with a cut-on wavelength of 484.5 nanometers and a cut-off wavelength of 507.5 nanometers. This narrow passband is ideal for observing specific celestial bodies that emit light within this range.

The filter is circular in shape, with a diameter of 28 millimeters, making it compatible with a wide range of optical systems. It has a thickness of 1.5 millimeters, providing sufficient structural integrity while maintaining a low profile to minimize optical aberrations.

The NPB - Narrow Pass Band Nebula (496BP22) 1.25 Astronomy Filter features a special coating on both the front and back surfaces, denoted as 'ome npbnebula496bp22'. This coating enhances the filter's performance by reducing surface reflections and increasing transmission efficiency. The coating also provides protection against environmental factors, ensuring the filter's longevity and reliability.

This filter is designed in the shape of a Thin Lens, which helps to minimize optical aberrations and distortions, providing clear and sharp images. The filter is currently in stock and available for purchase, as indicated by its valid weblink status.