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Inon UCL-G165 SD Underwater Wide Close-up Lens

Inon UFL-G140 SD Underwater Semi-fisheye Conversion Lens

The INON UFL-G140 SD provides amazing wide underwater footage and photos nearly same view angle as using action camera and smartphones on land.
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Inon UFL-G140 SD Underwater Semi-fisheye Conversion Lens For GoPro Cameras

The INON UCL-G165 SD underwater wide close-up lens enables you to shoot a subject from a close range of the lens to capture the subject larger in a frame.

Compatible cameras:

  • NautiSmart Smartphone Housing
  • OLYMPUS STYLUS TG-Tracker
  • SONY FDR-X3000/X3000R
  • SONY HDR-AS300/AS300R
  • GoPro HERO9 Black
  • GoPro HERO8 Black
  • GoPro HERO7 Black
  • GoPro HERO6 Black
  • GoPro HERO5 Black
  • GoPro HERO+LCD
  • GoPro HERO+
  • GoPro HERO
  • GoPro HERO4
  • GoPro HERO3+
  • GoPro HERO3

Ultra-Wide Even Underwater
The measured maximum angle of view of GoPro HERO4/HERO3/HERO3+ Black Edition is approx. 151° on land which will narrow down to approx. 94° when we put the camera in genuine dive housing and bring it underwater due to different refraction index. The INON UFL-G140 SD provides ultra-wide semi-fisheye imaging with an angle of view 140° underwater enabling wild underwater video work only with GoPro cameras.
* Measured angle of view by INON or calculated angle of view underwater based on the measured angle of view. Not confirmed by camera manufacture. The measured angle of view of HERO3+ Silver Edition is approx. 142° (air) which is less wide than the Black Edition. So the angle of view underwater with this lens is less than 140°. The HERO3+ White Edition has not been tested.

Dynamic CFWA Imaging
Theoretically, the depth of field (DoF) of the GoPro HERO4, HERO3+, and HERO3 Black Edition on land are approx. 60cm/2ft to . With the INON UFL-G140 SD, DoF underwater will be extended to 4cm/1.6in to for HERO4/HERO3+ or 10cm/3.9in to for HERO3 enabling you to shoot a subject at close range to benefit deformed and/or perspective result.
* DoF on land is based on focal length/aperture of the camera lens and pixel pitch of the image sensor. DoF underwater is measured from "the forefront of the lens". Other Edition has not been tested.

Professional-level Image Quality
The UFL-G140 SD is constructed of 4 elements in 4 groups. The rear element is made from a high refractive index glass lens to minimize the whole size dramatically without sacrificing performance. Front acrylic dome has five layers multi-coating on its inner surface providing the same grade of image quality as an optical glass dome at affordable pricing.

Speedy Lens Exchange by SD Mount
Bayonet INON SD Mount compatible to support friendly and speedy lens exchange underwater. Compatible with AD Lens Holder to hold a lens when not in use.

Specs:

  • Size: 93.4mm / 3.7in (Diameter), 41.8mm / 1.6in (Length)
  • Weight
    • [air] 300g / 10.6oz
    • [underwater] approx. 153g / 5.4oz
  • Mount system: INON SD Mount
  • Depth rating: 60 / 196.9ft
  • Body material/finishing: Corrosion resistant aluminum alloy / rigid black alumite, PC etc.
  • Lens material/coating
    • Optical glass/both side coating,
    • Optical plastic/both side hard coating, inner multi-coating
  • Depth of field (*1)
    • 4cm / 1.6in to (HERO4, HERO3+ Black)
    • 10cm / 3.9in to (HERO3 Black)
  • Lens construction 4 groups 4 elements
  • Max. view angle (*2) 140.0_(underwater)
    • (*1) Measured distance underwater for GoPro HEOR4/HERO3+ Black/HERO3 Black. Divide by 1.33 for visual distance underwater. Other Edition has not been tested.
    • (*2) Actual angle of view (actual field of view) varies among different shooting modes.