Camera Flash / Speedlight: Sony HVL-F42AM Unit Flashgun
Model Name: Sony HVL-F42AM Unit Flashgun
Image:Sony HVL-F42AM Flash Unit Flashgun
Fivercam Price (used) UK
eBay Price (used) UK
Release Date
Strenght / Power
Guide Number (ISO100, meters) Flash Specs 138' (42 m) at 105mm
Power Level Switching (Vari-power Range)Yes
Head & Coverage
Bounce (Up-Down) Head MovementYes (Up 90°)
Swivel (Rotation) Head movementYes (Right 180°, Left 90°)
Focal Length Coverage Flash Specs
Auto Zoom Head Flash Specs Yes (24mm - 105mm coverage, 16mm with included wide panel)
Flash Related Functions
Flash Durations Flash Specs
Flash Modes(TTL) Flash Specs
Flash Exposure Compensation / Correction Flash Specs
Secondary Illumination Flash Specs
Wireles Flash
Wireless Operation Flash Specs
Wireless Groups Flash Specs
Wireless Channels
Remote Timing Modes
Other Features
MountHot-shoe mount flash
Off Camera Terminal / External ConnectorsNo
Included Accessories
Other Functions
Power Source & Recycle Time
Power Source - Batterry4x AA Batteries (Alkaline, NiMH)
External Power
Minimum Recycle Time (Charging time between shooting) Flash Specs 4 Seconds (flash at full power with fresh alkaline batteries)
Battery Life Flash Specs
Dimensions & Weight
Dimensions2.9 x 4.8 x 3.9" (75 x 123 x 100mm)
Weight12 oz (340g)
More Details or Support Website: Link
Item 1
Fivercam Wiki information:

There are three ways to trigger off-camera flash units wirelessly: via infrared, radio signals or a hybrid method that involves both infrared and radio. The infrared system works like the TV remote; there need to be a direct line of sight for the signal to reach the destination. The radio signal has no line-of-sight limitations, but comes at a rather high cost. The hybrid system simply takes the infrared signal from the commander, converts it over to radio and then converts it back to infrared on slave units.

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