Description
SeaFrogs ST-100 Pro Strobe
SeaFrogs ST-100 Pro Strobe has UNDERWATER coverage 100 x 100 degree, yet it is lightweight and compact body and the is designed to produce G.N. 33. Further more, it 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, it can deliver full dump even at 1/1000 high shutter speed setting without cutting power.
The built-in Shutter-linked Auto-Off Focus Light delivers 800 lm 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.
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.
Specification:
- Flashing Index: GN 32 (overland ISO100)
- Digital support: Optic cable (compatible with all camera), USB (Compatible with all Nikon camera TTL)
- Flash point: 100 degree x 100 degree
- Battery: 1.5v Alkaline / AA battery / 1.2v nickel metal hydride
- Reflect speed: 5S (alkaline) / 4S (nickel metal hydride)
- Flash support: support 5 pin socket and optic cable connection
- Reflect instruction: LED light (Red)
- Colour temperature: 5600K
- Focusing light: 3W LED, manual / auto (auto 8S close), auto close when exposure
- Pressure depth: 100m (328ft)
- Exposure control: optical cable / USB synchronise with TTL, adjust the luminosity (flash index), M grade by turnable table
- Index grade: 6 grade (GN 1/2.8/5/8/16/32)
- TTL compensation: 6 stage ((EV -0.3/-1.0/-2.0/+0.3/+1.0/+2.0)
- Dimension & weight: 105 x 163 x 98 mm & 596.5g
