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Canon Speedlite 420EX TTL-Shoe Mount Flash

The Speedlite 420EX is sure to appeal to EOS users everywhere with its combination of power, features and affordability. It's fully E-TTL compatible, and reverts to standard TTL operation when used on older EOS bodies or the T90. The fully swiveling bounce head zooms automatically over a range of 24mm-105mm. Most impressively, its Wireless E-TTL compatibility permits it to function as a "slave" unit, triggered by a 550EX; ST-E2, or MR-14EX. Any number of 420EX and 550EX Speedlites can be combined as "slave" units.
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.


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
Order It Here