Top Pick
Top Pick
Who it's for
- Industry-Leading Optical Quality
- Exceptional Light Pollution Rejection
- Optimized for Fast Optical Systems
Who should skip it
- Significant Premium Price Point
- Requires Extended Exposure Times
- Delicate Unmounted Format
Key Specs
Filter Type
OIII
Connection Interface
1.25 inch
Accessory Type
Filter
Material
Glass
Size
36mm
Parfocal for systems f/4.0 or slower
Transmitted wavefront better than 0.25 waves/inch
Parallelism
less than 30 arcsec
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Ask Metto anything about the Chroma OIII Narrowband Filter before you decide.