INON Arm

Arm Body

Arm Body

INON Arm series is machined of lightweight aluminum alloy and processed together with "arm ball". This processing system gives INON Arm high-precision, light weight and extraordinary strength.

Arm II set

Arm II Set

Precise machined Arm Body and Clamp supports reliable clamping as well as smooth adjustment.

Float Arm

Float Arm

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 with its hollow arm body design.

INON Arm series is machined of lightweight aluminum alloy and processed together with "arm ball". This processing system gives INON Arm high-precision, light weight and extraordinary strength. Unlike molding or casting, this manufacturing system obtains accuracy of "0.01mm" providing very smooth fitting between arm ball and clamp. The diameter of arm ball 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.

[Arm S Set Z]/[Arm S Set SB]/[Arm S Set YS] from the left[Arm S Set Z]/[Arm S Set SB]/[Arm S Set YS] from the left

Arm XS Body

· Effective length : 75mm/3.0"
· Weight : 48g/1.7oz(Underwater : 29g/1.0oz)
Arm XS Body

Arm SS Body

· Effective length : 120mm/4.7"
· Weight : 60g/2.1oz(Underwater : 40g/1.4oz)
Arm SS Body

Arm S Body

· Effective length : 150mm/5.9"
· Weight : 70g/2.5oz (Underwater : 44g/1.6oz)
Arm S Body 

Arm M Body 

· Effective length : 200mm/7.9"
· Weight : 85g/3.0oz(Underwater : 52g/1.8oz)
Arm M Body 

Arm L Body

· Effective length : 320mm/12.6"
· Weight : 120g/4.2oz(Underwater : 74g/2.6oz)
Arm L Body

YS Arm MS Body

· Effective length : 166mm/6.5"
· Weight : 70g/2.5oz(Underwater : 43g/1.5oz)
YS Arm MS Body

YS Arm M Body

· Effective length : 203mm/8.0"
· Weight : 80g/2.8oz(Underwater : 49g/1.7oz)
YS Arm M Body

Arm Z SetIllustration shows Arm Z Set

Direct Arm Z Set
Direct Arm SB Set
Direct Arm YS Set

Direct Arm Z Set Multi D.B. Long
Direct Arm SB Set Multi D.B. Long
Direct Arm YS Set Multi D.B. Long

Effective length : 134mm/5.3"(Z), 119mm/4.7"(SB), 124mm/4.9" (YS) *Multi D.B. Long has additional 36mm/1.4"
Weight : 140g/4.9oz (Z), 135g/4.8oz (SB), 135g/4.8oz (YS) *Multi D.B. has additional 6g/0.2oz
Set includes : Z Adapter (SB Adapter, YS Adapter, Multi Direct Base II (Long), Clamp

Arm XS SetIllustration shows Arm XS Set Z

Arm XS Set Z
Arm XS Set SB
Arm XS Set YS

Arm XS Set Z Multi D.B. Long
Arm XS Set SB Multi D.B. Long
Arm XS Set YS Multi D.B. Long

Effective length : 245mm/9.6"(Z), 230mm/9.1"(SB), 235mm/9.3"(YS) *Multi D.B. Long has additional 36mm/1.4"
Weight : 243g/8.6oz(Z), 238g/8.4oz(SB), 238g/8.4oz(YS) *Multi D.B. Long has additional 6g/0.2oz
Set includes : Z Adapter(SB Adapter, YS Adapter), Arm XS Body, Multi Direct BaseⅡ(Long), Clamp x2

Arm SS Set ZIllustration shows Arm SS Set Z

Arm SS Set Z
Arm SS Set SB
Arm SS Set YS

Arm SS Set Z Multi D.B. Long
Arm SS Set SB Multi D.B. Long
Arm SS Set YS Multi D.B. Long

Effective length : 290mm/11.4"(Z), 275mm/10.8"(SB), 280mm/11.0"(YS) *Multi D.B. Long has additional 36mm/1.4"
Weight : 255g/9.0oz(Z), 250g/8.8oz(SB), 250g/8.8oz (YS) *Multi D.B. Long has additional 6g/0.2oz
Set includes : Z Adapter(SB Adapter, YS Adapter), Arm SS Body, Multi Direct BaseⅡ(Long), Clamp x2

Arm S Set ZIllustration shows Arm S Set Z

Arm S Set Z
Arm S Set SB
Arm S Set YS

Arm S Set Z Multi D.B. Long
Arm S Set SB Multi D.B. Long
Arm S Set YS Multi D.B. Long

Effective length : 320mm/12.6"(Z), 305mm/12.0" (SB), 310mm/12.2"(YS) *Multi D.B. Long has additional 36mm/1.4"
Weight : 265g/9.3oz(Z), 260g/9.2oz(SB), 260g/9.2oz(YS) *Multi D.B. Long has additional 6g/0.2oz
Set includes : Z Adapter(SB Adapter, YS Adapter), Arm S Body,Multi Direct BaseⅡ(Long), Clamp x2
*One Arm Float S (sold separately) can be attached.

Arm M Set ZIllustration shows Arm M Set Z

Arm M Set Z
Arm M Set SB
Arm M Set YS

Arm M Set Z Multi D.B. Long
Arm M Set SB Multi D.B. Long
Arm M Set YS Multi D.B. Long

Effective length:370mm/14.6"(Z), 355mm/14.0"(SB), 360mm/14.2"(YS) *Multi D.B. Long has additional 36mm/1.4"
Weight:280g/9.9oz(Z), 275g/9.7oz(SB), 275g/9.7oz(YS) *Multi D.B. Long has additional 6g/0.2oz
Set includes:Z Adapter (SB Adapter, YS Adapter), Arm M Body, Multi Direct BaseⅡ(Long), Clamp x2
*One Arm Float S (sold separately) can be attached.

Arm L Set ZIllustration shows Arm L Set Z

Arm L Set Z
Arm L Set SB
Arm L Set YS

Arm L Set Z Multi D.B. Long
Arm L Set SB Multi D.B. Long
Arm L Set YS Multi D.B. Long

Effective length:490mm/19.3"(Z), 475mm/18.7"(SB), 480mm/18.9"(YS)  Multi D.B. Long has additional 36mm/1.4"
Weight:315g/11.1oz(Z), 310g/10.9oz(SB), 310g/10.9oz(YS) *Multi D.B. Long has additional 6g/0.2oz
Set includes : Z Adapter (SB Adapter, YS Adapter), Arm L Body, Multi Direct BaseⅡ(Long), Clamp x2
*Maximum two Arm Float S (sold separately) can be attached.

YS Arm MS SetIllustration shows YS Arm MS Set

YS Arm MS Set
YS Arm MS Set · Multi D.B. Long

Effective length : 242mm/9.5" *Multi D.B. Long has additional 36mm/1.4"
Weight : 165g/5.8oz *Multi D.B. Long has additional 6g/0.2oz
Set includes : YS Arm MS Body, Multi Direct BaseⅡ(Long), Clamp
*One Arm Float S (sold separately) can be attached.

YS Arm Set Illustration shows YS Arm Set

YS Arm M Set
YS Arm M Set Multi D.B. Long

࿐Effective length : 279mm/11.0" *Multi D.B. Long has additional 36mm/1.4"
࿐Weight : 175g/6.2oz *Multi D.B. Long has additional 6g/0.2oz
࿐Set includes : YS Arm M Body, Multi Direct Base Ⅱ(Long), Clamp
*One Arm Float S (sold separately) can be attached.

Arm Option

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- 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.

フロートアームを使っているところ

*Click the below movie thumbnail to see introduction movie of Float Arms (external site).
フロートアーム説明動画

Float Arm S

· Buoyancy : 75g / 2.6oz  · Effective length : 150mm/ 5.9in 
· Outer diameter : 52mm/ 2.0in  · Weight(air) : 142g / 5.0oz
Float Arm S

Float Arm M

· Buoyancy : 135g / 4.8oz  · Effective length : 200mm/ 7.9in 
· Outer diameter : 52mm/ 2.0in  · Weight(air) : 181g / 6.4oz
Float Arm M

Float Arm ML

· Buoyancy : 210g/7.4oz  · Effective length : 260mm/ 10.2in 
· Outer diameter : 52mm/ 2.0in  · Weight(air) : 235g / 8.3oz
Float Arm ML

Mega Float Arm S

· Buoyancy : 390g /13.8oz  · Effective length : 150mm/ 5.9in 
· Outer diameter : 97mm/ 3.8in  · Weight(air) : 219g / 7.7oz
Mega Float Arm S

Mega Float Arm M

· Buoyancy : 650g / 22.9oz  · Effective length : 200mm/7.9in 
· Outer diameter : 97mm/3.8in · Weight(air) : 295g /10.4oz
Mega Float Arm M




  • ABS resin/corrosion-resistant aluminum alloy/rubber etc.
  • Depth rating : 70m / 230feet

*Click button to see buoyancy chart of Float Arm products.
Click button to see buoyancy chart of Float Arm products.

Float Arm Option

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