Top Pick
Top Pick
Who it's for
- High Contrast Imaging
- Effective Light Pollution Suppression
- Quality Multi-Coatings
Who should skip it
- Highly Specialized Use
- Extended Exposure Times Required
- Potential for Vignetting
Key Specs
Bandpass
Narrow Bandpass at 500nm
Filter Thickness
2mm
Filter Type
OIII
Shape
Round
Size
1.25"
Connection Interface
1.25 inch
Accessory Type
Filter
Material
Glass
Still have a question?
Ask Metto anything about the Optolong OIII Telescope Filter before you decide.