Underwater Wide Close-up Lens
[ZD Mount]
UCL-G165 II ZD Underwater Wide Close-up Lens
JAN/EAN code : 4570018120947
Bayonet INON ZD Mount compatible to support friendly and speedy lens exchange underwater. Compatible with ZD Lens Holder to hold a lens when not in use.
A unique wide close-up lens with a deeper depth of field by slightly increasing angle of view underwater.
Compatible Front Mask
- ZD Front Mask for HERO12
- ZD Front Mask for Ace Pro
Bayonet INON ZD Mount compatible to support friendly and speedy lens exchange underwater. Compatible with ZD Lens Holder to hold a lens when not in use.
A unique wide close-up lens with a deeper depth of field by slightly increasing angle of view underwater.
Compatible Front Mask
- ZD Front Mask for HERO12
- ZD Front Mask for Ace Pro
[SD Mount]
UCL-G165 II SD Underwater Wide Close-up Lens
JAN/EAN code : 4570018120855
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.
A unique wide close-up lens with a deeper depth of field by slightly increasing angle of view underwater.
Compatible camera
- SD Front Mask for GO 3S
- SD Front Mask for HERO9
- SD Front Mask for HERO8
- SD Front Mask for HERO5/6/7
- SD Front Mask STD
- SD Mount Cage for HERO3/3+/4
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.
A unique wide close-up lens with a deeper depth of field by slightly increasing angle of view underwater.
Compatible camera
- SD Front Mask for GO 3S
- SD Front Mask for HERO9
- SD Front Mask for HERO8
- SD Front Mask for HERO5/6/7
- SD Front Mask STD
- SD Mount Cage for HERO3/3+/4
[M55 Screw Mount]
UCL-G165 II M55 Underwater Wide Close-up Lens
JAN/EAN code : 4570018120862
Focus Stick for UCL-G165 II
JAN/EAN code : 4570018120893
Patent pending "Focus Stick" to support focusing to use with "UCL-G165II".
This device provides a visual reference of the minimum focusing distance when filming with the UCL-G165II. The Focus Stick can be set either on the top or the bottom indicating the minimum focusing distance of the UCL-G165II at the tip.
The far end of the depth of field is 25cm/9.8in from the tip. The Focus Stick also indicates angle of view when GoPro camera is set to "Linear".
It rotates 360° and clicks every 90° so it is easy to turn instantly when not necessary.
*The Focus Stick for UCL-G165 II is specifically designed for UCL-G165II ZD/SD and not for any other lenses including previous UCL-G165 SD or UCL-G165II M55.
Patent pending "Focus Stick" to support focusing to use with "UCL-G165II".
This device provides a visual reference of the minimum focusing distance when filming with the UCL-G165II. The Focus Stick can be set either on the top or the bottom indicating the minimum focusing distance of the UCL-G165II at the tip.
The far end of the depth of field is 25cm/9.8in from the tip. The Focus Stick also indicates angle of view when GoPro camera is set to "Linear".
It rotates 360° and clicks every 90° so it is easy to turn instantly when not necessary.
*The Focus Stick for UCL-G165 II is specifically designed for UCL-G165II ZD/SD and not for any other lenses including previous UCL-G165 SD or UCL-G165II M55.


Features
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 so-called "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®HERO13 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®HERO13 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 which delivers ultra wide 140°.

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.
Compatible Accessories
Front Replacement Lens Cap
UCL-G165 II ZD
UCL-G165 II SD
UCL-G165 II M55

Front Replacement Lens Cap
Focus Stick for UCL-G165 II

Rear Replacement Lens Cap
UCL-G165 II Z

Rear Replacement Lens Cap
UCL-G165 II SD

Rear Replacement Lens Cap
UCL-G165 II M55

Front Replacement Lens Cap
UCL-G165 II ZD
UCL-G165 II SD
UCL-G165 II M55

Front Replacement Lens Cap
Focus Stick for UCL-G165 II

Rear Replacement Lens Cap
UCL-G165 II Z

Rear Replacement Lens Cap
UCL-G165 II SD

Rear Replacement Lens Cap
UCL-G165 II M55

Options
ZD Lens Holder M5
UCL-G165 II ZD

ZD Lens Holder S
UCL-G165 II ZD

AD Lens Holder for Float Arm
UCL-G165 II SD

AD Lens Holder
UCL-G165 II SD

AD Lens Holder Shoe Base
UCL-G165 II SD

ZD Male Bayonet for SD Lens
UCL-G165 II SD

UCL-330 Neoprene Carry Pouch
UCL-G165 II ZD
UCL-G165 II SD
UCL-G165 II M55

ZD Lens Holder M5
UCL-G165 II ZD

ZD Lens Holder S
UCL-G165 II ZD

AD Lens Holder for Float Arm
UCL-G165 II SD

AD Lens Holder
UCL-G165 II SD

AD Lens Holder Shoe Base
UCL-G165 II SD

ZD Male Bayonet for SD Lens
UCL-G165 II SD

UCL-330 Neoprene Carry Pouch
UCL-G165 II ZD
UCL-G165 II SD
UCL-G165 II M55

Specifications
UCL-G165II ZD | UCL-G165II SD | UCL-G165II M55 | |
Size | 77mm/3.0in [Diameter] 25.2mm/1.0in [Length] |
77mm/3.0in [Diameter] 25.2mm/1.0in [Length] |
77mm/3.0in [Diameter] 25.5mm/1.0in [Length] |
Weight | 211g/7.4oz [air] approx.129g/4.6oz [underwater] |
200g/7.1oz [air] approx.121g/4.3oz [underwater] |
222g/7.8oz [air] approx.139g/4.9oz [underwater] |
Mount system | INON ZD Mount | INON SD Mount | INON M55 Mount |
Depth rating | 60m/196.9ft | ||
Body material /finishing |
Corrosion-resistant aluminum alloy / rigid black alumite | ||
Lens material/coating | Optical glass / both side coating | ||
Lens construction | 2 groups 2 elements | ||
Max. view angle (*1) | 165mm/6.5in [underwater] |
UCL-G165II ZD | UCL-G165II SD | UCL-G165II M55 | |
Size | 77mm/3.0in [Diameter] 25.2mm/1.0in [Length] |
77mm/3.0in [Diameter] 25.2mm/1.0in [Length] |
77mm/3.0in [Diameter] 25.5mm/1.0in [Length] |
Weight | 211g/7.4oz [air] approx.129g/4.6oz [underwater] |
200g/7.1oz [air] approx.121g/4.3oz [underwater] |
222g/7.8oz [air] approx.139g/4.9oz [underwater] |
Mount system | INON ZD Mount | INON SD Mount | INON M55 Mount |
Depth rating | 60m/196.9ft | ||
Body material /finishing |
Corrosion-resistant aluminum alloy / rigid black alumite | ||
Lens material/coating | Optical glass / both side coating | ||
Lens construction | 2 groups 2 elements | ||
Max. view angle (*1) | 165mm/6.5in [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) | HERO13 Black 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/13.8in |
HERO3 BLACK | 7cm/2.8in to ∞ | |
Arashi Vison Inc. | Insta360 Ace Pro Insta360 GO 3S |
10cm/3.9in to 35cm/13.8in |
OLYMPUS | TG-Tracker | 2cm/0.8in to 15cm/5.9in |
SONY | FDR-X3000 HDR-AS300 |
10cm/3.9in to 35cm/13.8in |
DSC-RX0(MPK-HSR1) | 9.6cm/3.8in to ∞ |
Mfr. | Camera | Depth of field with UCL-G165 II (*2) |
GoPro (*3) | HERO13 Black 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/13.8in |
HERO3 BLACK | 7cm/2.8in to ∞ | |
Arashi Vison Inc. | Insta360 Ace Pro Insta360 GO 3S |
10cm/3.9in to 35cm/13.8in |
OLYMPUS | TG-Tracker | 2cm/0.8in to 15cm/5.9in |
SONY | FDR-X3000 HDR-AS300 |
10cm/3.9in to 35cm/13.8in |
DSC-RX0(MPK-HSR1) | 9.6cm/3.8in to ∞ |
(*2) Measured DoF from foreground of the lens surface. Divide by 1.33 for visual distance underwater.。
(*3) Measured distance underwater for GoPro® HERO13 Black/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.
Remarks
[When using the UCL-G165 II]
The UCL-G165 II is designed only for underwater use. Using the lens on land will have vignetting.
[When using for GoPro®]
Set the camera's field of view (FOV)/Digital Lenses to [Wide] for wide-angle macro photography that prioritizes angle of view, or [Narrow] for magnification-oriented photography.
When using with HERO11 Black, HERO12 Black and HERO13 Black, shoot in 4:3 or 16:9 aspect ratio as vignetting will occur in 8:7 or [HyperView] mode.
[SuperView™] mode is not recommended. The SuperView™ mode stretches both ends of the image inside the camera to fit into a 16:9 aspect ratio from originally obtained 4:3 aspect ratio image by the camera sensor. Since the edges of the frame are stretched horizontally, using an attachment lens further stretches the edges of the frame, resulting in an unnatural image.
Set the camera's image stabilization (HyperSmooth) to [Standard], [High], or [On]. Setting to [Off] will cause vignetting in image corners, and [Boost] will crop the image significantly.
The FOV/Digital Lenses setting [Wide] in Photo mode causes vignetting in image corners.
[When using Insta360 Ace Pro]
Avoid setting combinations of [ActionView] + 4K/16:9 or [UltraWide] + 4K/4:3 as they will have vignetting regardless of whether image stabilization is activated or not.
When shooting video, even in FOV settimg other than the above, the Focus Stick may be appeared in a clip if the camera is moved abruptly.
In photo mode, [UltraWide] + 48MP/4:3 will have vignetting. Note that optional Focus Stick will be exposed on an image as well.
[When using for TG-Tracker]
Activate image stabilization function of the camera while shooting video to avoid vignetting. When taking still images, do not use attachment lens to avoid significant vignetting on image corners.
Since the camera is designed to offer optimal focusing performance for close range subject, usable range of DoF (depth of field) with this lens is "2cm/0.8in to 15cm/5.9in" and distant subject beyond this range gets blur.
[When using for FDR-X3000/HDR-AS300]
Select SteadyShot (Movie) [Act] when shooting video as [Std] and [OFF] cause slight vignetting. Select SteadyShot (Still) [ON] when shooting still image. Excessive camera movement may result vignetting even SteadyShot (Movie) [Act] is selected.
Set angle of view to [W: Wide] for wide-angle macro shooting that prioritizes angle of view, or [N: Narrow] for magnification-oriented imaging.
Sample Movie
*GoPro and HERO are trademarks or registered trademarks of GoPro Inc.
*Insta360 is a trademark or registered trademark of Arashi Vison Inc.
*Olympus, STYLUS and TG-Tracker are trademarks or registered trademarks of Olympus Imaging Corp.
*Sony and Action Cam are trademarks or registered trademarks of Sony Corporation and Sony Marketing Inc.
*Specifications are subject to change without notice.