Astronomik 1.25″ H-Alpha CCD filter – 12nm

Description

Astronomik 1.25″ H-Alpha CCD filter – 12nm.

Features:

• The Astronomik H-Alpha 12nm filter is mounted in 1.25″ (31.8mm) cell for CCD use.
• Great for planetary nebulae and supernova remnants.
• The Astronomik H-Alpha 12nm filter has a transmission of up to 99%.
• The full width at half-maximum (FWHM) of 12nm is optimised for the use with common CCD cameras and allow the use of very fast optics.
• The filter may NOT be used for solar observation.
• 12?nm Pass band.
• Blocks artificial light and sky glow.
• Blocks infra red.

Please enquire when stock is indicated as zero.? Availability is typically within 2 months – please enquire.