Details
Description
In mint sealed condition
Details from the web:
The Baader 36 mm 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