October 22, 2014, 10:03:28 PM

Author Topic: 580EX2 against 600EX more power ?  (Read 1985 times)

Timothy_Bruce

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580EX2 against 600EX more power ?
« on: March 02, 2012, 07:50:37 PM »
wonder if the 580 has more power ...
580EX2  58 at 105mm  and the 600EX  is 60 at 200mm.
what will the 600 have at 105mm ?
anyone know about ?

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580EX2 against 600EX more power ?
« on: March 02, 2012, 07:50:37 PM »

MikeHunt

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Re: 580EX2 against 600EX more power ?
« Reply #1 on: March 02, 2012, 08:42:38 PM »
Even though the manufacturers typically quote the maximum flash distance fully zoomed, the standard comparative test is to measure all flashguns at 35mm angle @ ISO = 100 and the old 580EX2 is rated at GN 36 at 35mm, but test results have shown it higher (see link below)

http://speedlights.net/2011/04/18/canon-speedlite-580ex-ii-flash-review/

What we really need to see from the new 600EX and 600EX-RT is the GN @ 35mm

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Re: 580EX2 against 600EX more power ?
« Reply #1 on: March 02, 2012, 08:42:38 PM »