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xPocketWizard Plus IV You now have the best of both worlds in one easy-to-use, reliable wireless trigger. The Plus IV Auto-Sensing Transceiver allows photographers the benefit of on-camera TTL flash combined with remote manual flash. Whether you shoot portraits, weddings or sports, having the ability to combine on-camera TTL flash with remote manual flash provides you with a huge competitive edge.

Specifications 

• Frequency:
  FCC/IC model: 433.62 - 434.22 MHz EU/Asia/Other
• Channels: 
  32 channels 
  1-16 Standard Channels 
  17 - 32 selective Quad-Zone Triggering channels 
  Reverse compatible with all PocketWizard radios using Standard or Quad-Zone Triggering channels
• Zones: 
  A - B - C - D 
  Compatible with other PocketWizard radios with Quad-Zone Triggering channels
• Antenna: 
  Precision tuned internal coil
• Display: 
  Backlit 2.5cm (1.0") liquid crystal display (LCD)
• Range: 
  Comparable to other PocketWizard radios (Actual range is dependent on multiple factors including equipment, mode, environment, positioning, orientation and interference)
• Sync Speed: 
  Up to 1/250 for focal plane shutters 
  Up to 1/500 for leaf shutters
• Triggering Speed: 
  Up to 14.5 frames per second (FPS)
• Contact Time: 
  62 milliseconds in normal operation 
  2 milliseconds in High Speed Receive (HSR) Mode
• Status Indicator: 
  LED: Green, Amber, Red status indications
• Transmit Output Power: 
  Less than 1 milliwatt (0.001 watt)
• Power: 
  Two (2) AA (IEC:LR6) alkaline recommended 
  NiMH, NiCAD, NiZn, Lithium acceptable (these chemistries may not report battery life accurately) 
  USB (optional AC adapter PW-AC-USB available)
• Battery Life: 
  Approximately 50 hours (with alkaline batteries)
• Max Port Sync Voltage: 
  Camera / Flash Port: 300 Volts 
  Hot Shoe (off camera): 300 Volts 
  Hot Shoe (on camera): When using a 3rd party flash on camera, verify camera and flash specifications for voltage compatibility. On camera speedlights are directly connected to the camera’s hot shoe electrically.
• Mac Current Handling: 
  Camera / Flash Port: 1.0 A peak, 0.2 A (1/5 Amp or 200 milliamp) continuous current limited
• Voltage Present: 
  3 volts, safe for use with all digital and film cameras
• USB: 
  USB 2.0 Mini-B Connector
• Housing: 
  High impact plastic with captive battery door
• Weight: 
  130 grams (4.7 ounces) with batteries installed Dimensions:
• Height: 
  4.5cm (1.8")
• Width: 
  5.9cm (2.3")
• Depth: 
  10.4cm (4.1")
• Operating Temperature: 
  Above -15 degrees C (5 degrees F) and below 50 decrees C (120 degrees F)
• Storage Temperature: 
  Above -30 degrees C (-22 degrees F) and below 85 degrees C (185 degrees F) (without batteries)
• Input/Output: 
  3.5mm (1/8") stereo miniphone jack, hot shoe
• Mounting: 
  Metal foot, 1/4-20 threaded insert
• In the Box: 
  Quick Guide Operation reference sticker
• RoHS Compliant: 
  Yes
• Optional Accessories: 
  Isolation bar, trigger buttons, camera motor drive cables, 
  PC cables and adapters, flash sync cables and protective case