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Mangrove FS1-ST100

Manufacturer: Sea Frogs

Availability: Usually ships in 2-3 business days

Digital Lighting package, it comes with a universal tray Mangrove SH-01-BJ, rigid arm A-YS-BJ-15, Sea Frogs ST-100-Pro Flash and the optical sync cord. Sea Frogs ST-100-Pro Underwater Strobe, robust & durable construction against heat, guide number 33, 110° angle of coverage without diffuser, 220 lumen target light

Price: $433.00

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Digital Lighting package, it comes with a universal tray Mangrove SH-01-BJ, rigid arm A-YS-BJ-15, Sea Frogs ST-100-Pro Flash and the optical sync cord.

Sea Frogs ST-100-Pro Underwater Strobe

  • Guide Number 33 
  • 110° Angle of Coverage without Diffuser 
  • Robust & Durable Construction Against Heat
  • 220 lumen Target Light

The Sea Frogs ST-100-Pro offers a phenomenal range of features and benefits that make this the first choice of many of the worlds leading professional underwater photographers. Combining high power, wide angle coverage and near instant recycling with thought through user friendly exposure functions and triggering options, the ST-100-Pro leads the field outperforming many much larger and heavier underwater flashguns.


Powerful G.N. 33 and UNDERWATER coverage 110 degree

Yet lightweight and compact body, the ST-100-Prois designed to produce G.N. 33. Further more, the ST-100-Pro has overcame drawback of high-power strobe which has long flash duration and reaches to FULL power after start flashing in significantly short period of time.

Together with flashing system in sync with pre-flash and main flash of camera’s built-in flash, the ST-100-Pro can deliver full dump even at 1/1000 high shutter speed setting without cutting power

Radiation system to release generated heat inside

The ST-100-Pro strobe is equipped with circular metal heatsink carrying high thermal conductivity around 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.

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

S-TTL Auto /13 Steps Manual Flash Mode

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

Both Optical/Electrical Trigger Supported

The ST-100-Pro is equipped with Nikonos type 5 pin sync connector as well as slave sensor to trigger optically to adopt wide variety of camera system.
  • Guide No on land: 33
  • Recycle time: 1.5 sec at full power
  • Manual power settings: 12
  • Colour temp at full power: 5500K
  • Colour temp with diffuser: 5400K
  • Coverage: 110° x 110°
  • Coverage with diffuser: 110° Circular
  • Depth rating: 100 m
  • Focusing light: 5w LED - 220 lumen
  • Power Supply: 4 x AA Cells
  • Overall dimensions:
    • Diameter: 104 mm
    • Height: 131 mm
    • Length: 125 mm
  • Weight: 637 gr (land) / 48 gr (air).
  • ST-100-Pro Strobe
  • Strobe Filter SOFT
  • Sync. Connector Cap
  • Slave Sensor Cap
  • Spare O-ring (Battery Box, Synch Connector)
  • Universal tray SH-01-BJ
  • Rigid arm A-BJ-YS-15
  • Clamp C-BJ
  • Adapter for rigid arm A-YSU-IN
  • Optical sync cord.
Inon provides a limited warranty to the original purchaser against all defects in original workmanship and material under normal SCUBA use and service as outlined in the owner's manual for 1 year from the date of purchase, with the following exceptions:
  • This warranty does not cover commercial or rental use.
  • Should your equipment prove to be defective for any reason (other than those listed in the limitations section below) it will be repaired or replaced at Inon´s discretion, free of charge, excluding shipping and handling charges.
  • Repairs made under this warranty will not extend the warranty period
  • This warranty is non-transferable and applies to the original purchaser only.
  • All correspondence concerning this warranty must be accompanied by a copy of the original sales receipt.
  • Any flood or damage, for any reason, that is caused from flooding an O-ring sealed or water tight area will not be covered under warranty. All O-ring sealed products undergo extensive factory pressure testing before being shipped and delivered and are therefore guaranteed to be sealed and functioning when shipped from the factory.
  • Inon nor ADITECH will not be liable for any loss, damages, or expenses including incidental or consequential damages directly or indirectly arising from the sale or use of the product.
  • Inon accepts no liability for any loss of captured images or the inability to capture images even if it is due to the malfunctioning or leakage of the housing.
  • All paint finishing, cosmetic discoloration of surfaces, powder coating, or material stitching that is chipped, damaged, or unthreaded through customer use is not covered in the warranty.
  • Inon does not warranty any product for aesthetic finishes. Issues with surface finish that do not affect function of the product are not covered under warranty.
  • This warranty does not apply and may be rendered completely void in the event of accidental damage, abuse, batteries´ electrolyte spillage, overcharging of battery, flooding due to neglect, tampering, lack of care and maintenance, improper storage, or unauthorized service.
  • This warranty specifically excludes lenses, cords, connectors, O-rings, or other conditions resulting from misuse and negligence.
  • This warranty becomes void if the housing components are damaged by anything other than normal recreational diving use.
  • Modifications or repair by anyone other than an authorized Inon Dealer or ADITECH Service Department will void the warranty.
  • By purchasing this product you agree and understand that in no event will Inon, its distributors or retailers, be held liable for any personal injuries resulting from its operation, or any other damage whether direct, indirect, incidental or consequential, even if Inon or ADITECH is advised of such damages.