UCL-165 XD Close-up Lens
Outer diameter	φ77.9 mm/3.1 in.
Length	22.2 mm/0.9 in.
Weight	[Underwater] approx.90 g/3.2 oz [Air] 154 g/5.4 oz
Lens mount	INON XD Mount
Construction	2 groups 2 elements
Focal length**	Underwater:165mm /Air:135.4mm
Body material/finishing	Corrosion-resistant aluminum alloy /rigit black almite, POM etc.
Lens material/finishing	Optical glass /both side coating
Depth rating	60 m (197 ft)

*Specification is subject to change without prior notice.
**Focal length of the lens itself and not combined focal length with camera lens.