The Baader 1.25†500nm Colour Filter Green are carefully prepared for amateur astronomical interests the glass are coplaner fine optically polished. These filters exceed the quality of the usual "raw polished" (hot flamed) coloured glass filters.
Because they are fine optically polished, these filters can be at any point in the mean path - far ahead of the focal point (for example, in front of a binocular approach) without causing defects (astigmastism) or to degrade the image otherwise in any way.
Features: Baader 1.25†500nm Colour Filter Green
- Green 500nm bandpass filter.
- Provides the sharpest images with achromatic and refractors double star observations.
- Improves the visibility and ground fog on Mars.
- Increases contrast between red and blue.
- Provides the best contrast for lunar craters
- Multi-coated for max contrast no reflections, scatter or dimming.
- Planeoptically polished to within 30 seconds of arc for a sharp image at high magnification with non-ageing sealed coating edges.
- Both sides 7-layer AR coating with only 0.25% residual reflection per surface. This is the most antireflective that has ever been undertaken with color filters.
Specification: Baader 1.25†500nm Colour Filter Green
- Manufactured: Baader
- Condition: New
- Warranty: 2 Year
- Colour: Green
- Transmission Range: >500nm
- Filter Size: 1.25 inch
- Filter Usage: Color, Planetary
- Filter Shape: Round
- Filter Thickness Without Cell: 2 mm
- Type Of Filter: Brandpass
- Filter Mounted: Mounted (LPFC 6mm)
- Weight: 0.059 Kg
Kit Content:
Baader 1.25†500nm Colour Filter Green
Manufactured Warranty
User Guide
For more information about, Baader 1.25†500nm Colour Filter Green .
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