High-Performance Flagship Model As PENTAX's former flagship flash, the AF-540FGZ offers an impressive Guide Number of 54 (ISO 100/m). This "Flagship Power" provides exceptional reach for long-distance shots and enough strength for professional bounce photography even in large rooms. Seamless P-TTL Automation Featuring Full P-TTL Compatibility, this unit communicates perfectly with your PENTAX DSLR. It automatically calculates the precise amount of light needed by firing a pre-flash, ensuring perfect exposure in any situation without complex manual settings. Advanced Creative Features High-Speed Sync (HSS): Capture stunning portraits in bright sunlight by syncing at shutter speeds beyond the standard limit. Wireless Flash: Supports wireless P-TTL for creative off-camera lighting setups. 1. Powerful Output and Versatile Coverage Guide Number (GN): Maximum 54 (ISO 100/m). Auto Zoom Function: Automatically adjusts the discharge angle to match the lens focal length (covering 24mm to 85mm equivalent). Built-in Wide Panel: By extending the panel, it covers an ultra-wide angle of up to 20mm (35mm format equivalent). 2. Versatile Flash Modes P-TTL: The camera calculates the optimal light output via a pre-flash fired just before the shutter opens. High-Speed Sync (HSS): Enables flash photography even at high shutter speeds (up to 1/4000s or faster) that exceed the camera's standard sync speed. Essential for daylight sync. Wireless Flash: Supports remote firing via wireless P-TTL, allowing you to position the flash away from the camera. Trailing Curtain Sync: Captures natural light trails following the movement of the subject. 3. Bounce Capabilities Vertical Tilt: Adjustable from -10° (for close-up photography) to 0°, 45°, 60°, 75°, and 90°. Horizontal Swivel: Rotates up to 135° to the right and 180° to the left. This allows for total freedom in bounce photography by reflecting light off walls or ceilings. Item,Details Max Guide Number,54 (ISO 100/m) Power Source,"4 AA batteries (Alkaline, Ni-MH, or Lithium)" Recycle Time,Approx. 6 sec (Alkaline) / Approx. 4 sec (Ni-MH) Flash Control,"P-TTL, TTL, Auto, Manual" Dimensions,76mm (W) x 142mm (H) x 107mm (D) Weight,Approx. 380g (excluding batteries) Shipping Policy: We will ship your order with a tracking number within 1-3 business days after payment confirmation. Disclaimer: Please note that the product description above was generated with AI assistance. As there may be potential inaccuracies, please refer to the provided photos and the official manufacturer's website for the most accurate and definitive information. Terms and Conditions 1. What is included in this item is only what is shown in the picture. Please note that batteries and other items not shown in the picture are not included. 2. Import duties, taxes, VAT (Value Added Tax), and other charges are not included in the item price or shipping cost. These costs are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying. 3. When purchasing a lens, please note that any issues arising from the use of third-party mount adapters are not covered under warranty. 4. Condition ratings and descriptions are based on the seller's subjective evaluation. Since the perception of an item's condition can vary between individuals, please carefully review all provided photos and place your bid based on your own judgment and responsibility. 5. In the event that you are not satisfied with the item or find any discrepancies with the description, the item must be returned to the seller first. A refund will be processed immediately upon the safe return of the item. All return policies are governed by Catawiki's terms and conditions. 6. By placing a bid, you are deemed to have read and agreed to all the terms and conditions stated above.