Sony HVL-F45RM vs. Olympus FL-600R + 2

TTL

TTL

TTL

E-TTL (Canon), i-TTL (Nikon), E-TTL II (Canon), TTL, S-TTL (Sigma)

88.3 mm

98 mm

113.7 mm

104 mm

69.4 mm

62 mm

317 g

255 g

540 g

Articulated flash head, Wireless master function, Wireless slave function

Articulated flash head, AF assist beam, Wireless slave function

24 - 105 mm

45

36

60

Automatic or manual

Monochrome

R6 (AA)

R6 (AA)