Baader 2" 4.5nm SII Ultra-Narrowband Filter

In good used condition

Details from the web:

The Baader Ultra-Narrowband 4.5nm S-II CCD Filter offers high contrasted images to about 673 nm in red spectral range. The S-II CCD filter offers sharper details of nebulae and the star appearance are diminished even stronger.

This IR-blocked filter has an anti-reflective coating to avoid halos and ghosting of the images for clear and sharper images. It is designed for fast optical system ranging from F8 - F3. Along with its 2 mm of thickness, this filter is planeoptically polished and has non-ageing sealed coated edges.

Features

Anti-Reflective Coating

4.5 nm Central Wave Length

2 mm Thickness

Planeoptically Polished

Non-Ageing Sealed Coated Edges

Optical System Ranging From F8-F3

Specifications

Manufacturer: Baader Planetarium

Condition: New

Coating: Dielectrically Coated and Planeoptically Polished

Filter Thickness Without Cell: 2 mm

Size of Filter: 36 mm

Half Band Width: 4.5 nm

Central Wavelength: 673 nm

Range of Transmission: S-II

Application: S-II, CCD, IR-Cut

Filter Mounting: Mounted (LPFC 6 mm)

Filter Type: Narrowband

Dimensions: 4 x 4 x 1.3 cm

Weight: 66 g / 0.066 kg

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Please note:
Only accessories listed in the photograph's are included with the purchase unless otherwise stated.

Photographs are taken by ENS and aren't manufacturer stock images unless otherwise stated.

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