Godox V860 III-P 2.4GHz Wireless TTL II HSS Flash Speedlite for Pentax (Black) Features: 1. Built-in Godox 2.4G Wireless X system 2. Fully support TTL function: - Features include TTL auto flash, manual flash, 18000s high-speed sync, flash exposure compensation, second-scene sync, and more. 3. Powerful and convenient lithium-ion battery - The recovery time is 1.5 seconds, 650 full-power discharges can be performed, and the 2000mAh lithium battery ensures better shooting performance. 4. GN60 (m ISO 100 at 200mm) and 22 levels of output power (11-1128) 5. Support TTLMMultiS1S2 mode 6. Automanual zoom head from 20 to 200mm. Specification: 1. Compatible cameras: For Pentax SLR cameras (TTL auto flash) 2. Guide plate number (11 output 200mm): 60(m ISO 100); 190(ft ISO 100) 3. Flash range: Manualauto zoom (20-200mm), (widescreen is 14mm) 4. Rotatetilt flash head (bounce): Horizontal 0~360 degrees, vertical -7 degree~90 degree 5. Flash time: 1300 to 120000 seconds 6. Exposure control system: TTL auto flash and manual flash 7. Multiple Flashes: Provided (up to 90 times, 100Hz) 8. Flash Exposure Compensation (FEC): Manual FEB: +-3 stops in 13 stop increments 9. Flash Exposure Lock (FEL): No 10. Sync mode: High-speed sync (up to 18000 sec), first act sync and second act sync 11. Wireless flash function: Master, slave, off 12. Controllable slave group: Light: 2 (A, B); 2.4G 3 (A, B, C) 13. Transmission Range (Approx.): Optical: Indoor: 12 to 15m 39.4 to 49.2ft. Outdoor: 8 to 10m 26.2 to 32.8ft. Main device receiving angle: Horizontal +-40 degrees, vertical +-30 degrees; 2.4G: 100m 14. Channel: Fiber: 4 (1, 2, 3 and 4); 2.4G: 32 (1-32) 15. Effective range of auto focus auxiliary beam (approx.): Center: 0.6-10m2.0-32.8ft; Peripheral: 0.6-5m2.0-16.4ft 16. Recovery time: Less than 1.5 seconds. When the flash is ready, the red LED indicator will light up. 17. Sync trigger mode: Hotshoe, 2.5mm sync cable, wireless control port