Inon UCL-G165 II SD Underwater Wide Close-up Lens
The UCL-G165II allows you to get closer to your subject, a few centimeters away, to capture the subject much larger. Compatible camera
To attach this lens to your GoPro, you'll need the correct Inon SD Front Mask for your iteration of the GoPro HERO.
- OLYMPUS STYLUS TG-Tracker
- SONY FDR-X3000/X3000R
- SONY HDR-AS300/AS300R
- GoPro® HERO10 Black
- 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 Get Closer Minimum Focus Distance
An action camera is a deep focus camera which does not require focusing but prevents a subject gets in focus in close range (within 60cm/2ft range in theory for GoPro® camera) thus not usable for underwater macro shooting. Using standard macro lens for a compact digital camera would not help the situation as it would create vignetting and very shallow depth of field preventing comfortable focusing. The UCL-G165 II lens is a wide close-up lens specifically designed for action cameras based on their optical characteristic. The depth of field (DoF) underwater will be 10cm/3.9in to 35cm/1.1ft when using the lens for GoPro® HERO12 Black supporting closer minimum focus distance underwater to capture wow photos/clips.
The depth of field (DoF) on land is theoretical value based on focal length/aperture of camera lens and pixel pitch of the image sensor. DoF underwater is measured from "the forefront of the lens". Ideal Angle of View for Macro Shooting
Maximum angle of view of GoPro® HERO12 Black is approx. 156° on land which will narrow down to approx. 94° when the camera is housed in genuine dive housing and submerged due to different refraction index. The INON UCL-G165 II slightly increases angle of view underwater to 110° to capture dynamic scene played by a subject as the lens frames subject larger than UFL-G140 SD which delivers ultra wide 140°.
Measured angle of view by INON on land or calculated angle of view underwater based on the measured angle of view on land. Not confirmed by camera manufacture.
Professional-level Image Quality
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.
Using with other than INON SD Front Mask may result in a significant image quality degradation due to a lack of optimization of the mounting distance between the lens and the adapter. Such usage is not covered by warranty. UCL-G165II SD UCL-G165II M55 Size 77mm / 3.0in (Diameter)
25.2mm / 1.0in (Length) 77mm / 3.0in (Diameter)
25.5mm / 1.0in (Length) Weight air 200g / 7.1oz
underwater approx. 121g / 4.3oz air 222g / 7.8oz
underwater approx. 139g / 4.9oz Mount system INON SD Mount INON M55 Mount Depth rating 60ｍ / 196.9ft 60ｍ / 196.9ft Body material
/finishing Corrosion-resistant aluminum alloy / rigid black alumite, PC. Corrosion-resistant aluminum alloy / rigid black alumite Lens material/coating Optical glass / both side coating Optical glass / both side coating Lens construction 2 groups 2 elements 2 groups 2 elements Max. view angle ( 1) 165mm (underwater) 165mm (underwater)
( 1) Standalone focal length of UCL-G165 II and not combined focal length with camera’s master lens. Mfr. Camera Depth of field with
UCL-G165 II ( 2) GoPro ( 3) HERO12 Black
HERO11 Black
HERO10 Black
HERO9 Black
HERO8 Black
HERO7 Black
HERO6 Black
HERO5 Black
HERO4
HERO3 Black
HERO
HERO
HERO LCD 10cm / 3.9in to 35cm / 1.1ft
( 4) HERO3 BLACK 7cm / 2.8in to ∞ OLYMPUS TG-Tracker 2cm / 0.8in to 15cm / 5.9in SONY FDR-X3000
HDR-AS300 10cm / 3.9in to 35cm / 1.1ft
( 2) Measured DoF from foreground of the lens surface. Divide by 1.33 for visual distance underwater.｡
( 3) Measured distance underwater for GoPro® HERO12 Black/HERO11 Black/HERO10 Black/HERO9 Black/HERO8 Black/HERO7 Black/HERO6 Black/HERO5 Black/HERO4/HERO3 Black/HERO3 Black/HERO/HERO /HERO LCD. Other Edition has not been tested.
( 4) Although the lens specifications are the same as the previous model "UCL-G165," the depth of field has been updated in response to the camera's higher resolution. NOTES
When using the UCL-G165 II
The UCL-G165 II is designed only for underwater use. Using th