INON UCL-G165 SD Underwater Wide Close-up Lens for GoPro

[Description]

■「UCL-G165 SD」 Underwater Wide Close-up Lens■

• A GoPro® is a deep focus camera preventing a subject gets in focus within 60cm/2ft range in theory thus not usable for underwater macro shooting. By using this lens, minimum focus distance underwater will be shorten; the depth of field (DoF) of camera will be「7cm/2.8in~∞(*15)」for GoPro® HERO3 or「5cm/2.0in~35cm/1.1ft(*15)」for GoPro® HERO3+ enabling high magnification/close-up imaging.
• Measured maximum angle of view of GoPro® HERO3/HERO3+ Black Edition is「approx. 151°(*16) on land」which will narrow down to「approx. 94°(*16)」when we put the camera in genuine dive housing and bring it underwater due to different refraction index. The INON UCL-G165 SD is a unique close-up lens providing slightly wide angle of view「underwater 110°」to have deeper DoF benefitting you with less out-of-focus close range clip which is not possible with standard close-up lens.
• Bayonet INON SD Mount compatible to support friendly and speedy lens exchange underwater.
• Optics is constructed of 2 elements in 2 groups. All elements are made from high refractive index glass lens to minimize whole size dramatically without sacrificing performance.
• Both lens elements have anti-reflection coating on all surfaces to elicit combined master lens performance with less ghost/flare.
• M55 screw mount version will be released later.

[Specifications]

• Size : φ77mm (3.0in) x 25.2mm(1.0in)
• Weight: U/W: approx.121g (4.3oz) Air: 200g (7.1oz)
• Mount system: INON SD Mount
• Depth rating: 60m (196.9ft)
• Material/surface finishing: Corrosion-resistant aluminum alloy/rigid black alumite, PC etc.
• Lens material/coating: Optical glass/both side coating
• Depth of field(*17):
  
  • 7cm/2.8in~∞(GoPro® HERO3 Black Edition)
  • 5cm/2.0in~35cm/1.1ft(GoPro®HERO3+ Black Edition)
• Lens construction: 2 groups 2 elements
• Focal length(*18): 165mm(underwater)