Filter Chroma H-alpha 8 nm 1.25 , mounted (SKU: CT-27003-1.25M) all astro filters opinie

1579 zł price without VAT: 1283,74 zł Shop online: ● on request  Shop in Warsaw (qty): ● on request  Shop in Chorzow (qty): ● on request

CHEAP DELIVERY TO EUROPEAN COUNTRIES CHECK IT OUT!

Chroma H-alpha 8 nm 1.25" mounted (SKU: CT-27003-1.25M) is a narrowband filter designed for astrophotography, providing selective passage of the H-alpha line with a bandwidth of 8 nm. It is a universal solution that allows you to increase the amount of recorded signal, facilitating nebula photography also in less demanding conditions.

Key features

• bandwidth of 8 nm in the H-alpha line (approx. 656 nm)
• high transmission – approx. 99%
• hard coatings applied using the reactive magnetron sputtering method – high durability and resistance to environmental conditions
• anti-reflective coatings on the back surface eliminate reflections and ghosting
• all Chroma Astronomy filters are parfocal to each other
• suitable for use in optical systems with a f/4 aperture and slower
• not suitable for observing the Sun

Set components

• 8 nm 1.25" H-alpha filter in the holder – CT-27003-1.25M

Technical parameters

• type: narrowband H-alpha filter for astrophotography
• diameter/frame: 1.25"
• bandwidth: 8 nm
• central wavelength (CWL): approx. 656 nm
• transmission: approx. 99%
• optical substrate: 3.0 mm thick glass
• coating technology: reactive magnetron sputtering (hard coatings)
• coating construction: main layer on the front side, AR coatings on the back side
• Transmitted wavefront accuracy: better than 0.25 waves/inch
• parfocal: yes (with other Chroma Astronomy filters)
• production: USA (Vermont)