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Cactus AF50 P-TTL Camera Flash / Speedlite for Pentax (CLEARANCE SALE)
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Cactus AF50 P-TTL Camera Flash / Speedlite for Pentax (CLEARANCE SALE)

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The Cactus AF50 is a solid performing flash with comprehensive features and a competitive price. The following are some of the outstanding features of this flash:

Fully supports Pentax P-TTL, an advanced programming and computerized circuitry of the flashgun provide correct amount of flash light output according to the camera's exposure measurement through the lens. If you prefer quick shooting and automatic flash power control, then the TTL mode of the Cactus AF50 is just for you.

Manual Flash Power Control
For those who usually opt for manual power control, a 5-level of "Power Ratio" (full power, 1/2, 1/4, 1/8 and 1/16) could be selected in M (manual) mode. The LC display automatically shows the flash-to-subject distance required for correct exposure.

Wireless TTL
The AF50 is equipped with an advanced wireless TTL can synchronize with a master flash through the lens, and enjoy creative flash in a multiple flash setup. Flash can now be fired from various directions without worrying about pre-flash from your camera which may trigger other flash units.

The above are only some of the features of the Cactus AF50. For a full list of other functions please refer to the specification.

For greater flexibility and creativity, the Cactus AF50 can be used with Cactus wireless flash trigger so the flash may be placed at any angle and at greater distance from your subject and camera. The lighting effects you can create are endless!

This flash model is also compatible with the Cactus V6 Wireless Flash Transceiver so its power output can be remotely controlled and flash can be triggered up to 270 meters away.

Purchase one for your photography setup today!


  • Auto Electronic Flash for Pentax cameras;
  • Brand: Cactus;
  • Model: AF50;
  • Package Includes:
    • Cactus AF50 Auto Electronic Flash for Pentax x1;
    • Soft Pouch x1;
    • Flash stand x1;
    • English user manual x1;
  • Compatible with Pentax P-TTL digital and film cameras including: *ist D, *ist DL, *ist DL2, *ist DS, *ist DS2, K100D, K100D Super, K110D, K10D, K200D, K20D, K-m, K-7, K-X, K-5, K-r, K-30, K-01; Samsung GX-1S, GX-1L, GX-10;
  • Compatible with Cactus wireless flash trigger;
  • Guide number 50 m / 164 ft (at 105mm focal length and ISO100);
  • Supports Pentax P-TTL;
  • HSS High Speed Sync;
  • Front and rear curtain synchronization;
  • Wireless TTL for multiple flash control up to 3 groups;
  • Optical Slave function with 9 slave settings;
  • Adjustable output power in manual mode in 6 levels: full power, 1/2. 1/4, 1/8, 1/16 and 1/32;
  • Bounce: 0° / 45° / 60° / 75° / 90°;
  • Swivel: Left 0°-180° and right 0°-120°;
  • Automatic power zoom with manual control from 24mm to 105mm;
  • Red focus-assist beam and red-eye reduction;
  • Flash duration 1/1,000 - 1/20,000 second;
  • Recycling time: 0.5-9 seconds;
  • Power source: 4 x AA alkaline batteries (not included);
  • Power saving function;
  • Socket for firmware update;
  • Illuminated 2” LCD display;
  • Flash readiness display in camera’s viewfinder;
  • Metal hot shoe with locking pin (except for Sony);
  • Net weight: 250g;
  • Brand new, never been used.

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Gadget Infinity is moving to new office premises on Monday, 26th October, 2015 located at:

11D, Block 2, Koon Wah Mirror Factory (6th) Industrial Building, 7-9 Ho Tin Street, Tuen Mun, N.T., Hong Kong.

Email addresses, phone and facsimile numbers remain unchanged. For enquiries contact us at +852 3525-0116 or service@gadgetinfinity.com.

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