Top Pick
Top Pick
Who it's for
- High Contrast and Detail
- Superior Light Pollution Suppression
- Excellent Optical Quality and Durability
Who should skip it
- Specialized Use Only
- Demands Long Exposure Times
- Potential for Vignetting
Key Specs
Bandpass
Narrow Bandpass at 672nm
Filter Type
SII
Peak Transmission
80%
Filter Thickness
2mm
Size
1.25"
Material
Glass
Connection Interface
1.25 inch
Accessory Type
Filter
Still have a question?
Ask Metto anything about the Optolong SII Telescope Filter before you decide.
