420EX AF assist beam ?

crotter · 24th of July 2007 (Tue)

I noticed my speedlite 420EX has what appear to be two seperate AF assist beam emmiters under the red lens... It seems only one of the sides emits the af assist beam... what does it take to activate the other side?

I know it doesnt really matter, this is just more of a curiosity on my part!

thanks,

CHRIS

tiha · 25th of July 2007 (Wed)

Yes, there are two lights on 420EX: one emits horizontal pattern, another one vertical. Depending on which focus point is selected appropriate light will emit. If you want both lights to emit select all focus points. At least this is how it works when 20D (30D)/420EX combo is used.

crotter · 25th of July 2007 (Wed)

Whoa cool! Thanks for the explanation!! Thats how it seems to work on my D60/420ex combo as well!

CHRISTIAN

24th of July 2007 (Tue)	#1
crotter Member Join Date: Apr 2007 Location: Alameda, California Posts: 286	420EX AF assist beam ? I noticed my speedlite 420EX has what appear to be two seperate AF assist beam emmiters under the red lens... It seems only one of the sides emits the af assist beam... what does it take to activate the other side? I know it doesnt really matter, this is just more of a curiosity on my part! thanks, CHRIS __________________ 5DII, 40D, Noink D70 IR, 17-40 L, 50 1.8 II, 28-135 IS, 100 Macro 2.8, 100-300 5.6 L, Speedlite 580EXII/420EX MBP 13" 

25th of July 2007 (Wed)	#2
tiha Member Join Date: Feb 2005 Location: 44°49′14″N 20°27′44″E Posts: 950 IMAGE EDITING OK	Re: 420EX AF assist beam ? Yes, there are two lights on 420EX: one emits horizontal pattern, another one vertical. Depending on which focus point is selected appropriate light will emit. If you want both lights to emit select all focus points. At least this is how it works when 20D (30D)/420EX combo is used. __________________ EOS 5D, EOS 30D, EOS 3, PowerShot G6 EF 50mm f/1.4 USM, EF 85mm f/1.8 USM, EF 100mm f/2.8 Macro USM, TS-E 90mm f/2.8, EF 15mm f/2.8 Fisheye, EF 70-200mm f/2.8L IS USM Speedlite 580EX, Speedlite 430EX, Macro Ring Lite MR-14EX, Transmitter ST-E2 PBase: http://www.pbase.com/v_tihomir

25th of July 2007 (Wed)	#3
crotter Member Join Date: Apr 2007 Location: Alameda, California Posts: 286	Re: 420EX AF assist beam ? Whoa cool! Thanks for the explanation!! Thats how it seems to work on my D60/420ex combo as well! CHRISTIAN __________________ 5DII, 40D, Noink D70 IR, 17-40 L, 50 1.8 II, 28-135 IS, 100 Macro 2.8, 100-300 5.6 L, Speedlite 580EXII/420EX MBP 13" 

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