Top Pick
Top Pick
Who it's for
- Exceptional Optical Performance
- Superior Contrast and Light Pollution Rejection
- Premium Coating Durability and Large Format Coverage
Who should skip it
- High Initial Investment Cost
- Demanding Exposure Requirements
- Sensitivity to Focal Ratio and Tilt
Key Specs
Filter Type
OIII
Shape
Square
Size
50mm
Parfocal for systems f/4.0 or slower
Transmitted wavefront better than 0.25 waves/inch
Parallelism
less than 30 arcsec
Mounting Type
Filter Holder System
Still have a question?
Ask Metto anything about the Chroma OIII Narrowband Filter before you decide.
