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    Sea & Sea

    YS-90 DX Strobe

    When used with a traditional sync cord, the YS-90DX operates in TTL automatic, slave and manual modes. When used with digital cameras via an accessory fiber optic cable, the YS- 90DX is slave-fired. The YS-90DX responds when the camera's built-in flash is fired. Some digital cameras have a pre- flash to measure subject distance and available light, some fire only once. The YS-90DX can be set to fire when you want it to. It operates in manual mode only. Total manual flash exposure is achieved by means of the strobe's unique 12- option light level control dial.

    Specifications
    • Exposure control: TTL and Manual, with 12 light-level options
    • Beam angle: 105â x 95â
    • Guide number: (ISO 100, land) 72/22 (ft/m) (full power)
    • Color temperature: 5500âK
    • Recycle time (full power): 200 alkaline, 120 Ni-cad Power source: Four AA alkaline or ni-cad batteries
    • Dimensions: 115 x 88 x 175mm/4.5 x 3.5 x 7 inches (H x W x D)
    • Optional: Fiber optic cable 58040

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    YS-90 TTL/AUTO Strobe
    Shown with the digital fiber optic sync cable.
    *Automatically controls the light level. For strobe auto photography using a digital camera, all you need to do is to set the aperture control of the strobe to that of camera. A high-performance auto strobe YS-90AUTO has been added to Sea & Sea YS-90 series.
    *Designed to fully utilize the advanced features of digital cameras, YS-90AUTO responds to 12 steps of aperture level and offers improved performance. For digital cameras with manual aperture control or program auto function, you simply turn the dial to adjust the aperture level of YS-90AUTO and you're ready for auto strobe lighting.
    *No complicated manual light level controls. Just leave it on the auto sensor and YS-90 supplies appropriate amount of light.
    *The strobe has excellent performance including pre-flash mode. Connection with the optional YS-90 optic fiber cable makes the strobe compatible with compact-type digital cameras.
    *Auto strobe lighting is also available with digital SLR housings (DX-30/60, DX-D100) through connection with a strobe sync cord. YS-90AUTO's built-in Duo circuit responds to N-type (used in MMIII) and S-type TTL circuits, both used in Sea & Sea housings.

    Additional features

    Specifications
    • Slave function
    • Auto lighting function
    • Over-pressure relief valve
    • Pre-flash mode
    • Guide Number: 22 (land, at full flash)
    • Coverage angle: 105þ x 95þ

    Battery life: 200 flashes (alkaline battery, at full flash), 120 flashes (Ni-Cd battery, at full flash)

    Recycle time: 6.5 seconds (alkaline battery, at full flash), 4
    seconds (Ni-Cd battery, at full flash)

    Aperture level control: f22 / f16 / f11 / f8 / f5.6 / f6.7 / f5.6 / f4.7 / f3.4 / f2.8 / f2.4 / f2 (12 steps)

    Color temperature: 5400þK (at full flash), 5100þK (with light reduction filter)
    Compatible with both detachable sync cord and optic fiber cable

    Battery requirement: 4x AA Alkaline (6V) or Ni-Cd (4.8V) batteries

    Depth rating: 60m/200 feet

    Dimensions: (HxWxD): 115 x 88 x 175mm/4.5 x 3.5 x 6.9 inches

    Land weight: 740g/1.6 lbs

    Underwater weight: -80g/-2.8 oz

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