Canon Speedlite 430EX Review at The-Digital-Picture
The-Digital-Picture have reviewed the Canon Speedlite 430EX flashgun, which replaces the Speedlite 420EX and increases the guide number to 43.
“One of the primary differences between the 430EX and the 580EX is the amount of light each can provide. The 430EX has a Guide Number of 141’ (43 m) while the 580EX has a Guide Number of 190’ (58 m) (both at 105mm). The 430EX is not under powered for many uses, but the 580EX’s significant power advantage can become important when using a flash modifier such as an umbrella, softbox or diffuser - or bouncing light off a high ceiling. In addition to being more powerful, the 580EX allows 1/1 (full power) to 1/128 in 1/3-stop increments while the 430EX allows power settings from 1/1 to 1/64 in more granular 1-stop increments.”