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Inon’s Z-330 Strobe Released
By Joanna Lentini, December 21, 2017 @ 06:05 PM (EST)

Inon has announced the all-new Z-330 strobe will be released on December 24, 2017. The strobe, which replaces the Z-240, features 110-degree coverage without a diffuser, a guide number of 33, and has a built-in optically designed dome lens—which offers high power and wide coverage. 

Key features of the Z-330:

  • Built-in light shade that rotates 360 degrees to reduce ghosting, flare, and backscatter
  • Radiation system which releases built-up heat inside the strobe
  • 220 lumen shutter-linked Auto Off focus light for macro critters
  • Phosphorescence back panel which helps improve visibility of the main control panel
  • More intuitive control dials
  • Larger dials for use with thick gloves
  • S-TTL / 13-Step Manual Flash Mode with 1/2 EV increments
  • Wide variety of dome filters and bayonet system for filters
  • Optical/Electrical triggering supported (Nikonos Type 5 pin sync connector and slave sensor to trigger optically)

The Z-330, bundled with a soft dome diffuser, is available now for $650. Three optional dome diffusers are also available: a neutral density (ND) diffuser ($15), a 4600K diffuser ($11), and a 4900K diffuser ($11).

Keep an eye out for DPG’s review of the Z-330—coming soon!


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Inon Z-330 strobe
Inon Z-330 ND diffuser
Inon Z-330 4600K diffuser
Inon Z-330 4900K diffuser



Product Release Information No. 488 Z-330 Strobe is now coming!
Guide Number 33 and UNDERWATER coverage 110 degrees without a diffuser.

The next generation new Z-330 strobe has built-in optically designed dome lens offering both high power and wide coverage without any diffuser which can sacrifice power—will be released on December 24, 2017.

Z-330 Features:

Powerful G.N. 33 and UNDERWATER coverage 110 degree

Yet lightweight and compact body, the Z-330 is designed to produce G.N. 33. Precisely designed front dome lens (*1) together with INON’s unique T shape twin flash widens powerful strobe light without sacrifice any power to accomplish UNDERWATER coverage circular 110 degrees. Not as like a conventional translucent diffuser which can widen coverage while it has to sacrifice power and store heat inside, this specially designed dome lens diffuse light thanks to reflection ratio of air, acrylic, and water to attain UNDERWATER coverage of 110 degrees with all power output coming through.

Z-330 front dome lens

Furthermore, the Z-330 has overcome the drawback of high-power strobe which has long flash duration and reaches to FULL power after start flashing in a significantly shorter period of time. Together with flashing system in sync with pre-flash and main flash of camera’s built-in flash, the Z-330 can deliver full dump even at 1/1000 high shutter speed setting without cutting power (*1) PAT. P on the dome lens system to widen underwater coverage.

(*1) PAT. P on the dome lens system to widen underwater coverage.

Bundled Strobe Light Shade to prevent shining camera lens

The Strobe Light Shade is bundled to cut a part of strobe light to benefit not shining camera lens directly to dramatically suppress ghost or flare and backscatter when the strobe is located to close to a lens port. The part of shade rotates 360 degrees. Intuitive operation with light clicks offers comfortable adjustment even underwater.

Strobe Light Shade is removable

The shade goes to any position

Radiation system to release generated heat inside

The Z-330 strobe is equipped with circular metal heatsink carrying high thermal conductivity around the light emitting area. The heatsink is directly connected to inner circuit component to release generated heat from strobe usage effectively. Improved heat tolerance has resolved heat problem typically accompanied with powerful strobe. No stress with sudden stop of flashing to cool down

220 lumen, Shutter-linked AUTO OFF Focus Light

The built-in Shutter-linked Auto-Off Focus Light delivers 220lm brightness to support when focusing a subject and cease in synch with the shutter release and automatically turns ON again. To aim optical axis of the Focus Light in line with strobe light’s optical axis, the Focus Light has a Fresnel lens in front supporting more accurate strobe aiming and improved usability.

Left: Z-330 Focus Light trajectory (underwater). Right: Z-240 Focus Light trajectory (underwater)

Conspicuous Phosphorescence Back Panel and Improved Intuitive Control Dials

Using white base high-intensity phosphorescence material for the back panel to improve visibility both during day and night dive.

Left: Back panel (daytime). Right: Back panel (night time when emitting light)

Also control dials are enlarged for user-friendly controllability even through thick gloves during cold water diving.

Large Main Mode Switch, EV Control Switch

S-TTL Auto /13 Steps Manual Flash Mode

INON’s unique accurate auto exposure system S-TTL has been further evolved. The accuracy of exposure is advanced providing more accurate exposure. In addition, optimized high-performance slave sensor never misses camera’s trigger signal even faint or partially damaged fiber optics cable can trigger the strobe to offer faultless triggering. Precise 1/2EV increments 13 steps Manual flash control is onboard to support professional use.

Wide Variety of Dome Filters

The Z-330 strobe has a bayonet system to hold a strobe dome filter to attach/remove easily. Besides bundled Strobe Dome Filter SOFT to protect dome lens surface and soften strobe light, optional Strobe Dome Filter ND which steps down at –4EV, Strobe Dome Filter [4600K] which changes native color temperature to 4600K and Strobe Dome Filter [4900K] which changes to 4900K will be available in 2018.

  • Strobe Dome Filter Soft (*2) -- Bundled accessory
  • Strobe Dome Filter ND (*2) -- To be released in 2018 -- JAN code: 456212143 862 0
  • Strobe Dome Filter [4600K] (*2) -- To be released in 2018 -- JAN code: 456212143 864 4
  • Strobe Dome Filter [4900K] (*2) -- To be released in 2018 -- JAN code: 456212143 863 7

Left: Bundled strobe dome filter SOFT. Right: Strobe dome filter SOFT installed on the Z-330

Left: Optional Strobe Dome Filter ND. Center: Optional Strobe Dome Filter [4600K]. Right: Optional Strobe Dome Filter [4900K]

(*2) Strobe Dome Filters are designed to use with Z-330 only, not usable with any other strobes.

Both Optical/Electrical Trigger Supported

The Z-330 is equipped with Nikonos type 5 pin sync connector as well as slave sensor to trigger optically to adopt a wide variety of camera system.

Left: Optical cable connection. Right: Electrical cable connection

Z-330 Specifications

INON has provided a PDF (13KB) listing the strobe’s full specifications.



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