Model Name: Pentax AF 540 FGZ II Flashgun | |
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Image: | ![]() |
Fivercam Price (used) UK | |
eBay Price (used) UK | |
Release Date | 2011 |
Strenght / Power | |
Guide Number (ISO100, meters) ![]() | 54/177, ISO 100 m/ft (177' at ISO 100 and 85mm) |
Power Level Switching (Vari-power Range) | From full power to 1/128 |
Head & Coverage | |
Bounce (Up-Down) Head Movement | from +90° to -10° |
Swivel (Rotation) Head movement | from 180° right to 135° left |
Focal Length Coverage ![]() | Cover angles of view from 24mm to 85mm lenses. Built-in wide-angle panel that slides out to cover 20mm angle of view (in 35mm format) |
Auto Zoom Head ![]() | |
Flash Related Functions | |
Flash Durations ![]() | 1/20,000s to 1/1,200 |
Flash Modes(TTL) ![]() | P-TTL auto, Manual (9 power settings), Multi, Wireless P-TTL, Wireless Manual |
Flash Exposure Compensation / Correction ![]() | 1/3~stop increments up to ~3 stops |
Secondary Illumination ![]() | |
Wireles Flash | |
Wireless Operation ![]() | Wireless Master/Slave TTL Functionality |
Wireless Groups ![]() | |
Wireless Channels | 4 |
Remote Timing Modes | |
Other Features | |
Mount | Hot-shoe mount flash |
Off Camera Terminal / External Connectors | |
Included Accessories | |
Other Functions | |
Power Source & Recycle Time | |
Power Source - Batterry | 4 alkaline, lithium, or Ni-MH AA batteries |
External Power | |
Minimum Recycle Time (Charging time between shooting) ![]() | Alkaline: 5 s, Ni-MH: 3 s, Lithium: 5 s Read more at: https://www.pentaxforums.com/accessoryreviews/pentax-af-540fgz-ii.html#ixzz85ga9PdAR |
Battery Life ![]() | |
Dimensions & Weight | |
Dimensions | 76 x 113 x 108mm |
Weight | 350g (without batteries) |
More Details or Support Website: | Link |
Item 1 |
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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