Bandmate OIII Filter
This OIII filter particularly enhances planetary nebulae in larger telescopes.
- Narrowband filter for high transmission, with high blocking of unwanted longer wavelengths to yield high-contrast images.
- Ion beam technology and optical glass produces low scatter in a hard stable coating to reduce changes due to temperature and humidity.
- Optical quality BK7 glass yields sharp star images, even when filter is placed in front of diagonal.
100% quality control: - Every single filter is checked optically and cosmetically to assure performance.
- Every filter is individually serialized.