Inon are shipping two conversion lenses for use with the Sony RX0 ultra-compact camera housed in the Sony MPK-HSR1 waterproof housing. The UWL-100 28M55 offers a minimum focus distance of 118mm (4.6 in) with an FOV of 100°. The UCL-G165 M55 offers a minimum focus distance of 96mm (3.8 in). Both attach via the 55mm thread on the housing.

Both lenses are shipping now. Please consult you local Inon dealer for pricing details.

Press release

INON Optics Supports SONY DSC-RX0/MPK-HSR1

INON INC. is pleased to announce official release of two attachment lenses on February 3rd, 2018.

• UWL-100 28M55 Wide Conversion Lens (2)(3)(4)
  –Release date: February 3rd, 2018
  –JAN code: 456212143 867 5

• UCL-G165 M55 Underwater Wide Close-up Lens (5)(6)
  –Release date: February 3rd, 2018
  –JAN code: 456212143 775 3

(1) Contact Sony Marketing Inc. for detail of camera/underwater housing. INON Inc. confirms product compatibility based on a camera available in Japan.

(2) Vignetting is observed on land but underwater will not have vignetting.

(3) The Dome Lens Unit II for UWL-100 is NOT compatible due to vignetting.

(4) This lens is the M55 screw mount version of currentUWL-100 28AD instead of original bayonet mount. Please contact your local dealer if you wish to replace original bayonet mount of the UWL-100 28AD with this M55 screw mount.

(5) Designed for underwater use only. Vignetting is observed on land but underwater will not have vignetting.

(6) This lens is the M55 screw mount version of currentUCL-G165 SD instead of original bayonet mount. Please contact your local dealer if you wish to replace original bayonet mount of the UCL-G165 SD with this M55 screw mount.

UWL-100 28M55Wide Conversion Lens Product Features

Attached Directly on the Genuine Underwater Housing MPK-HSR1

• The lens mount is same M55 screw mount as filter screw of the MPK-HSR1 enabling you to attach the lens directly on the housing without any adapter.
• Compact yet Wide 100 degree coverage
• The compact lens body matches with compact MPK-HSR1 without burden to provide handy wide imaging. The lens increases coverage dramatically to maximum 100 degree coverage underwater.

• Dramatically Shorten Minimum Focusing Distance
  Minimum focusing distance of the DSC-RX0 on land is 50cm/1.6ft which will be extended at x1.3 underwater due to reflection ratio underwater. By attaching this lens, minimum focusing distance underwater will be shorten to 118mm/4.6in(7) to enable you to take a Close Focus Wide Angle (CFWA) image.
• Lens Hood II for UWL-100 28AD is compatible
  Optional Lens Hood II for UWL-100 28AD is usable to block unnecessary light coming from outside of lens coverage to suppress flare/ghost.

UCL-G165 M55 Underwater Wide Close-up Lens Product Features

• Attached Directly on the Genuine Underwater Housing MPK-HSR1
  As same as the wide lens, the lens mount is same M55 screw mount as filter screw of the MPK-HSR1 enabling you to attach the lens directly on the housing without any adapter.
• Wide Close-up Lens with Deep Depth of Field
  The optics design widens the coverage slightly to have benefit of deep depth of field making minimum focusing distance underwater 96mm/3.8inch(7) enabling to shoot a subject at closer distance.
• Why UCL-G165 M55?
  The DSC-RX0 carries wide 24mm fix lens (8) and its superior optical characteristic to have less aberrations creates pincushion aberration (concave center part) underwater. This aberration gets more significant with standard close-up lens and powerful lens has more degradation on image corners. The UCL-G165 M55 is so-called wide close-up lens, so the lens can suppresses the aberration and enables more close-up image comparing standard close-up lens. Comparison images as below.

*All images are taken from same distance to compare distortion (pincushion aberration).

(7) Measured distance between a subject and lens edge when autofocus works underwater (in a tank).
(8) Focal length based on 35mm film equivalent.

Features

UWL-100 28M55 Wide Conversion Lens (2) (3) (*4)

Outer diameter/length: φ87.4mm(3.4in)/43.4mm(1.7in)
Weight: [Air] 386g(13.6oz)/[Underwater] 222g(7.8oz)
Mount system: INON M55 Mount
Depth rating: 60m (197ft)
Material/surface finishing: Corrosion-resistant aluminum alloy/rigid black alumite
Lens material/coating: Optical glass/anti-reflection coating
Construction: 4 groups 4 elements
Maximum incident angle(9): 100.0 degree (underwater)

UCL-G165 M55 Underwater Wide Close-up Lens (5)(6)

Outer diameter/length: φ77mm(3.0in)/25.5mm(1.0in)
Weight: [Air]217g(7.7oz) / [Underwater]135g(4.8oz)
Mount system: INON M55 Mount
Depth rating: 60m(197ft)
Material/surface finishing: Corrosion-resistant aluminum alloy/rigid black alumite
Lens material/coating: Optical glass/anti-reflection coating
Construction: 2 groups 2 elements
Focal length(10): 165mm(3.5in) *Underwater use only.

(9) Actual lens coverage varies depending on camera’s shooting mode.

(10) Focal length of the lens itself. Not combined focal length with camera’s master lens.

Set up example

*The Grip Base D4 is NOT compatible due to housing depth.

*Above set-up needs to remove pre-installed Shoe Adapter by an Allen key (supplied with the housing) to replace with Z Adapter MV 1/4-20UNC.

Comparison images among different lenses at minimum focusing distance

Sample images

*Sample images courtesy of HAMAYUU Marine Service

Related Information

LED flashlight.
Arm system.

*Press release information is as of January 30th, 2018 and subject to change without prior notice.