Mounted lens set with focus adjustment.
- Lens Material: Single element; Coated optical glass
- Lens Holder: 9mm x 0.5mm thread, 10mm thread length
- EFL (Effective Focal Length):9.0mm
- CA (Central Aperture):5.2mm
- SD (Diode to lens):6.9mm
- NA (Numerial Aperture):0.3mm
- Coating:405-450nm; Transmittance ratio: 95%
Designed for high power blue and blue/violet laser diode engravers.