Included in the 2-Light Kit is an adapter ring kit with 8 different sizes, which match most lenses. The sizes are 49mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm, and 77mm.
Specs:
Flash
Guide Number 16' / 4.9 m
Flash Duration 1/1200 to 1/34000 Second
Recycle Time Approx. 0.01 to 1.7 Seconds
Exposure Control TTL via Separate Commander, Manual
Power Range 1/1 to 1/128
Secondary Illumination Modeling Light
Wireless
Wireless Operation Radio (TTL/Manual) Up to 98.4' / 30 m (Slave)
Wireless Channels 32
Wireless Groups 5
Power
Internal Power 1 x Built-In Rechargeable (500 Full-Power Flashes)
External Power Pack Compatible No
General
Mount Shoe Mount (Controller), Lens Mount (Flash)
Lens Compatibility 49mm/52mm/55mm/58mm/62mm/67mm/72mm/77mm Filter Threads
Display Yes
Off-Camera Terminal None
Dimensions (W x H x D) 3.2 x 3.0 x 2.5" / 81.0 x 76.5 x 64.3 mm (Individual Flash Head)
Weight 5.1 oz / 144 g
Packaging Info
Package Weight 2.515 lb