Canon Speedlite 420EX TTL-Shoe Mount Flash Specifications
Type
E-TTL/TTL-Shoe Mount
Guide Number
G.N. 138 (ISO 100, feet) at 105mm setting; G.N. 101 at 35mm setting
Zoom Range
24-105mm
Bounce Capability
Yes
Swivel Capability
Yes
Auto Settings
full TTL at all apertures
Angle of Coverage
84 Degrees (24mm in 35mm) to 23 Degrees (105mm in 35mm)
Recycle Time
7 Seconds (based on alkaline batteries & full power) 4 Seconds (based on NiCd batteries & full power)
Power Source
4 AA-size batteries (alkaline, lithium, Ni-Cd, or Ni-MH)
Dimensions (W x H x D)
2.8 x 4.8 x 3.9 in.
Weight
10.6 oz.
Notes & Special Features
AF-assist Beam: All Elan 7 points Wireless Triggering: Yes
About Canon Speedlite 420EX TTL-Shoe Mount Flash
Canon Speedlite 420EX TTL-Shoe Mount Flash Features
Maximum Guide Number 138 (ISO 100, feet) at 105mm setting; G.N. 101 at 35mm setting
Approximately 1 / 2-stop less powerful than 550EX
Full E-TTL flash operation with "Type-A" bodies (EOS-1v, EOS-3, Elan 7 / 7E, Rebel 2000, Elan II/IIE, and Rebel G; EOS IX and IX Lite; and digital EOS D2000 and D30 bodies.)
E-TTL features include high-speed FP sync mode, and FE Lock (spot / partial flash metering)
Fully compatible as an affordable Wireless "slave" flash, with EOS-1v, EOS-3, Elan 7 / 7E, & D30
Taller than previous 380EX flash, but head is 30% smaller, and both width & depth are smaller
Powered by four AA-size batteries (alkaline, lithium, Ni-Cd, or Ni-MH)
Totally TTL-compatible with all "Type B" EOS cameras, and the manual-focus T90 SLR body.