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99% Positive Reviews

Lighting Rumours -  

“The engineers at Interfit have been hard at work developing the world’s first 500Ws monolight with High Speed Sync, TTL for Canon and Nikon, IGBT technology, Lithium Ion battery and multi-voltage AC power pack in one complete package. This unique combination of features gives the photographic market a versatile, affordable, high-powered flash lighting solution for both on-location and studio shooting.”

Designed In California

Used For Fashion, Editorial, Sports & Studio Photography

  • Speed:                Super sharp images with HSS up to 1/8000th  
  • Power:               Massive 500w with precise control of 1/10th increments gives absolute control
  • Functionality:   Can be controlled from up to 90m with multi-functional remote
  • Ease:                   Full TTL compatibility 
  • Portability:        Fully battery powered, with up to 430 full power flashes from a single charge!
  • Compatibility:  S type modifier mount giving countless light shaping options. 
  • How beautiful would the life of the flash photographer be if he had the qualities of a studio flash with the flexibility of a camera flash outside: no cables and remote control with TTL! That dream is now within everyone's reach with the Interfit S1. A studio flash 500Ws with built-in battery and controlled with a radio trigger. If you are already advanced in flash photography and you recognize the usefulness of studio flashes for distinctive photos in outside sessions, the Interfit S1 is an interesting and economical choice. Very portable, very flexible and therefore the perfect basis for creative photography. But the S1 works fine in the studio as well and it is not inferior to conventional alternatives. The absence of wires is liberating and you will see that fun in your portraits.

S1 & S1a Specifications

  • 500Ws
  • 7-stop power range
  • 3 second recycle time on AC and DC (S1a: 2 seconds only)
  • 1/10-stop power control precision
  • 1/1,000 – 1/9,000 second flash duration (max–min power)
  • 10W LED modelling lamp (modes: off/50%/100%)
  • Built-in 2.4GHz radio, optical slave and sync port
  • Manual, TTL and HSS shooting for Canon and Nikon
  • Max sync speed 1/250 second (normal) or 1/8000 second (HSS)
  • 4500mAh Li-ion battery capable of 350 full-power flashes (S1 only)
  • Fan cooled
  • Aluminium construction
  • Weight: 2.85 kg (S1) / 2.25kg (S1a)

Photos Shot on the Interfit S1