Stick Arm Body

Stick Arm Body

Universal arm designed as stick shape to minimize weight and carries broad expandability with wide range of optional accessories.

Multi Ball Arm Body

Multi Arm Body

New concept arm carrying extra ball-joint(s) besides both ends to add multiple strobe/LED flashlight.

Arm Body

Arm Body

Top end arm carrying high texture and durability by machined aluminum alloy with integral ball-joints.

Float Arm Body

Float Arm Body

Extraordinary buoyancy with complete hollow arm body made from lightweight weather-resistant ABS material.

INON Arm series is manufactured by machined lightweight aluminum alloy to benefit high-precision, light weight and extraordinary strength. Unlike molding or casting, this manufacturing system obtains accuracy of "0.01mm" providing very smooth fitting between ball-joint and clamp. The diameter of ball-joint is 24mm/0.9", equipping O-ring providing firm and reliable clamping but you never feel any stress when you adjust arm position by loosening a clamp. INON Arm O-ring is made of ozone-proof and weather-proof silicon rubber.

Stick Arm Body

Aluminum alloy arm designed as stick shape to have less water resistant, ample durability and super lightweight body all together. Five different effective lengths (center to center distance between both ends balls) from 75mm/3.0in (Stick Arm XS) to 320mm/12.6in (Stick Arm L) are available to select to suit to a lens or subject. Stick Arms carry broad expandability and various functions with wide range of optional accessories attached on the middle of the arm.

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A Lens Holder for Float Arm is attached via "M5 Joint" except for Stick Arm XS.

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The Shoe Base is attached via "M5 Joint" and "Shoe Base Spacer" to hold a strobe or LED flashlight.

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The Direct Base III is attached via "M6 Joint" to hold single strobe or maximum two LED flashlights.

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The Stick Arm Float S is attached to add approx. 84g/3.0oz buoyancy and support comfortable gripping. The Stick Arm S and M can have one while Stick Arm L can have maximum two Stick Arm Float S. (Stick Arm XS and SS cannot have the Stick Arm Float S)

■Stick Arm XS

■Full length: 96mm (3.8in)
■Effective length: 75mm (3.0in)
■Weight: 41g (1.4oz) [air] / approx.25g (0.9oz) [underwater]
■Compatible options:
 M5 Joint + Shoe Base Spacer
 M6 Joint + Direct Base III


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■Stick Arm SS

■Full length: 141mm (5.6in)
■Effective length: 120mm (4.7in)
■Weight: 51g (1.8oz) [air] / approx.31g (1.1oz) [underwater]
■Compatible options:
 M5 Joint + Shoe Base Spacer
 M5 Joint + Lens Holder for Float Arm
 M6 Joint + Direct Base III

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■Stick Arm S

■Full length: 171mm (6.7in)
■Effective length: 150mm (5.9in)
■Weight: 57g (2.0oz) [air] / approx.34g (1.2oz) [underwater]
■Compatible options:
 M5 Joint + Shoe Base Spacer
 M5 Joint + Lens Holder for Float Arm
 M6 Joint + Direct Base III
 Stick Arm Float S (one)

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■Stick Arm M

■Full length: 221mm (8.7in)
■Effective length: 200mm (7.9in)
■Weight: 71g (2.5oz) [air] / approx.43g (1.5oz) [underwater]
■Compatible options:
 M5 Joint + Shoe Base Spacer
 M5 Joint + Lens Holder for Float Arm
 M6 Joint + Direct Base III
 Stick Arm Float S (one)

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■Stick Arm L

■Full length: 341mm (13.4in)
■Effective length: 320mm (12.6in)
■Weight: 101g (3.6oz) [air] / approx.63g (2.2oz) [underwater]
■Compatible options:
 M5 Joint + Shoe Base Spacer
 M5 Joint + Lens Holder for Float Arm
 M6 Joint + Direct Base III
 Stick Arm Float S (maximum two)

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Stick Arm Body Options


M5 Joint

M5 Joint

LD Lens Holder
for Float Arm

LD Lens Holder  for Float Arm

AD Lens Holder
for Float Arm

AD Lens Holder  for Float Arm

M67 Lens Holder
for Float Arm

M67 Lens Holder  for Float Arm

Shoe Base Spacer

Shoe Base Spacer

M6 Joint

M6 Joint

Direct Base III

Direct Base III

Stick Arm Float S

Stic Arm float S

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Multi Ball Arm Body

New concept arm carrying extra ball-joint(s) besides both ends. Only with additional "Clamp III", another arm is attached on the middle of a Multi Ball Arm as like diverging a branch to create multiple strobe/LED flashlight system like a tree diagram.
Six different effective lengths (center to center distance between both ends balls) from 120mm/4.7in (Multi Ball Arm SS) to 440mm/17.3in (Multi Ball Arm XL) are available. Multi Ball Arm L and XL have total four ball-joints. As same as Stick Arms, Multi Ball Arms carry various functions with wide range of optional accessories.

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Multi Ball Arm ML, L, LL and XL can hold Lens Holder for Float Arm via "M5 Joint". (Multi Ball Arm SS is not compatible with M5 Joint and Multi Ball Arm S is not compatible with a lens holder)

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The Shoe Base is attached via "M5 Joint" and "Shoe Base Spacer" to hold a strobe or LED flashlight. (The Multi Ball Arm SS is not compatible with M5 Joint)

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The Direct Base III is attached via "M6 Joint" to hold single strobe or maximum two LED flashlights. (The Multi Ball Arm SS is not compatible with M6 Joint)

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The Stick Arm Float S is attached to add approx. 84g/3.0oz buoyancy and support comfortable gripping. The Multi Ball Arm ML and L can have one while Multi Ball Arm LL and XL can have maximum two Stick Arm Float S. (Multi Ball Arm Arm SS and S cannot have the Stick Arm Float S)

■Multi Ball Arm SS

■Full length: 141mm (5.6in)
■Effective length: 120mm (4.7in)
■Weight: 61g (2.2oz) [air] / approx.37g (1.3oz) [underwater]




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■Multi Ball Arm S

■Full length: 171mm (6.7in)
■Effective length: 150mm (5.9in)
■Weight: 70g (2.5oz) [air] / approx.42g (1.5oz) [underwater]
■Compatible options:
 M5 Joint + Shoe Base Spacer
 M6 Joint + Direct Base III

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■Multi Ball Arm ML

■Full length: 281mm (11.0in)
■Effective length: 260mm (10.2in)
■Weight: 93g (3.3oz) [air] / approx.56g (2.0oz) [underwater]
■Compatible options:
 M5 Joint + Shoe Base Spacer
 M5 Joint + Lens Holder for Float Arm
 M6 Joint + Direct Base III
 Stick Arm Float S (one)

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■Multi Ball Arm L

■Full length: 341mm (13.4in)
■Effective length: 320mm (12.6in)
■Weight: 116g (4.1oz) [air] / approx.69g (2.4oz) [underwater]
■Compatible options:
 M5 Joint + Shoe Base Spacer
 M5 Joint + Lens Holder for Float Arm
 M6 Joint + Direct Base III
 Stick Arm Float S (one)

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■Multi Ball Arm LL

■Full length: 401mm (15.8in)
■Effective length: 380mm (15.0in)
■Weight: 123g (4.3oz) [air] / approx.75g (2.6oz) [underwater]
■Compatible options:
 M5 Joint + Shoe Base Spacer
 M5 Joint + Lens Holder for Float Arm
 M6 Joint + Direct Base III
 Stick Arm Float S (maximum two)

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■Multi Ball Arm XL

■Full length: 461mm (18.1in)
■Effective length: 440mm (17.3in)
■Weight: 145g (5.1oz) [air] / approx.87g (3.0oz) [underwater]
■Compatible options:
 M5 Joint + Shoe Base Spacer
 M5 Joint + Lens Holder for Float Arm
 M6 Joint + Direct Base III
 Stick Arm Float S (maximum two)

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Multi Ball Arm Body Options


M5 Joint

M5 Joint

LD Lens Holder
for Float Arm

LD Lens Holder  for Float Arm

AD Lens Holder
for Float Arm

AD Lens Holder  for Float Arm

M67 Lens Holder
for Float Arm

M67 Lens Holder  for Float Arm

Shoe Base Spacer

Shoe Base Spacer

M6 Joint

M6 Joint

Direct Base III

Direct Base III

Stick Arm Float S

Stic Arm float S

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Arm Body

■Arm XS [Discontinued]

■Full length: 99mm (3.9in)
■Effective length: 75mm (3.0in)
■Weight: 48g (1.7oz) [air] / approx.29g (1.0oz) [underwater]



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■Arm SS

■Full length: 144mm (5.7in)
■Effective length: 120mm (4.7in)
■Weight: 60g (2.1oz) [air] / approx.40g (1.4oz) [underwater]
■Compatible options:
 Lens Holder W, Lens Holder S, AD Lens Holder

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■Arm S

■Full length: 174mm (6.9in)
■Effective length: 150mm (5.9in)
■Weight: 70g (2.5oz) [air] / approx.44g (1.6oz) [underwater]
■Compatible options:
 Lens Holder W, Lens Holder S, AD Lens Holder,
 Arm Float S (one)

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■Arm M

■Full length: 224mm (8.8in)
■Effective length: 200mm (7.9in)
■Weight: 85g (3.0oz) [air] / approx.52g (1.8oz) [underwater]
■Compatible options:
 Lens Holder W, Lens Holder S, AD Lens Holder,
 Arm Float S (one)

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■Arm L

■Full length: 344mm (13.5in)
■Effective length: 320mm (12.6in)
■Weight: 120g (4.2oz) [air] / approx.74g (2.6oz) [underwater]
■Compatible options:
 Lens Holder W, Lens Holder S, AD Lens Holder,
 Arm Float S (maximum two)

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■YS Arm MS

■Full length: 187mm (7.4in)
■Effective length: 166mm (6.5in)
■Weight: 70g (2.5oz) [air] / approx.43g (1.5oz) [underwater]
■Compatible options:
 Lens Holder W, Lens Holder S, AD Lens Holder,
 Arm Float S (one)

YS Arm MS Body

■YS Arm M

■Full length: 224mm (8.8in)
■Effective length: 203mm (8.0in)
■Weight: 80g (2.8oz) [air] / approx.49g (1.7oz) [underwater]
■Compatible options:
 Lens Holder W, Lens Holder S, AD Lens Holder,
 Arm Float S (one)

YS Arm M Body

Arm Body Options

LD Lens Holder S

LD Lens Holder S

LD Lens Holder W

LD Lens Holder W

M67 Lens Holder S

M67 Lens Holder S

M67 Lens Holder W

M67 Lens Holder W

AD Lens Holder

AD Lens Holder

Arm Float S

Arm Float S

YS Adapter Fixing Bolt

YS Adapter Fixing Bolt

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Float Arm Body

■Great buoyancy
The Float Arm uses weather-resistant ABS material for its component arm body to lighten total weight creating extraordinary buoyancy comparing to existing solid arm type float system together with its hollow arm body design. The hollow arm body enables not only helping weight trimming but also provide extra buoyancy.

■Wide variety of Float Arm
Float Arm system have line-up total 5 different type; [Float Arm] of standard φ50mm / 2in with three different length and [Mega Float Arm] of 95mm / 3.8in with two different length. New INON Float Arm system including existing [Arm Float S]provides perfect solution to benefit desired underwater weight of your camera system depending on shooting style, conditions.

■Secure and stable gripping
The Float Arm is fully compatible with existing INON Arm II system with its high-precision machined aluminum alloy ball joint providing perfect balance between stable clamping and stress-free handling thanks to ozone-proof and weather-proof silicon rubber O-ring. Your INON Arm II system is fully compatible with new Float Arm and you can add INON lens holder on the Float Arm.

■ INON commits to control underwater weight
We, INON will announce underwater weight not only housing / strobe but other accessories as much as we can to support people to consider selecting INON products knowing total underwater weight before purchasing them. The table on the next page shows underwater weight of INON products.

Float Arm

*Click the below movie thumbnail to see introduction movie of Float Arms (external site).
外部リンクとなります

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Maximum two Lens Holder for Float Arm can be attached.

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The Shoe Base is attached via "Shoe Base Spacer" to hold a strobe or LED flashlight.

■Float Arm S

■Buoyancy: 75g (2.6oz) [underwater]
■Weight: 142g (5.0oz) [air]
■Outer diameter: 52mm (2.0in)
■Full length: 174mm (6.9in)
■Effective length: 150mm (5.9in) 
■Compatible options:
 Lens Holder for Float Arm, Shoe Base Spacer
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■Float Arm M

■Buoyancy: 135g (4.8oz) [underwater]
■Weight: 181g (6.4oz) [air]
■Outer diameter: 52mm (2.0in)
■Full length: 224mm (8.8in) 
■Effective length: 200mm (7.9in)
■Compatible options:
 Lens Holder for Float Arm, Shoe Base Spacer 
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■Float Arm ML

■Buoyancy: 210g (7.4oz) [underwater]
■Weight: 235g (8.3oz) [air]
■Outer diameter: 52mm (2.0in) 
■Full length: 284mm (11.2in)
■Effective length: 260mm (10.2in)
■Compatible options:
 Lens Holder for Float Arm, Shoe Base Spacer
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■Mega Float Arm S

■Buoyancy: 390g (13.8oz) [underwater]
■Weight: 219g (7.7oz) [air]
■Outer diameter: 97mm (3.8in)
■Full length: 174mm (6.9in)
■Effective length: 150mm (5.9in)
■Compatible options:
 Lens Holder for Float Arm, Shoe Base Spacer 
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■Mega Float Arm M

■Buoyancy: 650g (22.9oz) [underwater]
■Weight: 295g (10.4oz) [air]
■Outer diameter: 97mm (3.8in)
■Full length: 224mm (8.8in)
■Effective length: 200mm (7.9in)
■Compatible options:
 Lens Holder for Float Arm, Shoe Base Spacer 
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●ABS resin / corrosion-resistant aluminum alloy / rubber etc.
●Depth rating: 70m / 230ft

Click button to see buoyancy chart of Float Arm product
*Click button to see buoyancy chart of Float Arm product

Float Arm Options

LD Lens Holder
for Float Arm

LD Lens Holder for Float Arm

M67 Lens Holder
for Float Arm

M67 Lens Holder for Float Arm

AD Lens Holder
for Float Arm

AD Lens Holder for Float Arm


Shoe Base Spacer

AD Lens Holder for Float Arm

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