Canon (7)

Godox (2)

Nikon (9)

Sony (3)

 i-TTL Balanced Fill-Flash with CLS compatible cameras (2)

D-TTL (2)

E-TTL (6)

E-TTL II (6)

P-TTL (1)

TTL (3)

TTL auto (3)

auto flash (2)

i-TTL (6)

manual (1)

pre-flash metering; for Multi Interface Shoe system (1)

0 - 10 (3)

154 ft./47m at ISO 100 and 105mm flash coverage.  (1)

21 - 30 (2)

31 - 40 (1)

34.5 m/113 ft. (at 35 mm) 55 m/180 ft. (at 200 mm) (FX format, standard illumination pattern) (at ISO 100) (1)

45 (1)

49.2 ft./15m at ISO 100 (1)

60 (m ISO 100) (3)

85.3' / 26m (1)

24m / 78.7ft. (at ISO 100) (1)

The Guide No. is approximately 68.9 ft./21.0m at ISO 100 and 24mm flash coverage.
The maximum Guide No. is approximately 85.3 ft./26.0m at ISO 100 and 50mm flash coverage. (1)

not specified (2)