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Old Jun 30, 2005, 6:57 AM   #1
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at the moment i am building an equipment list before i go buy a canon system any feedback on flashes would also be helpful.thanks
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Old Jul 1, 2005, 12:01 AM   #2
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thisflash does everything that the 550ex does for much less $$.. its a little less powerful than the 580ex but at half the cost, who cares.. it functions as both a wireless slave and master and can be wirelessly linked to canon's own ex series flashes..
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Old Jul 1, 2005, 5:36 AM   #3
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Actually the EF-500 DG Super has one feature better than the Canon's: :idea:
It's ability to sync to 3rd-party as studio slaves without any accessories: http://www.stevesforums.com/forums/v...mp;forum_id=53


The best features though is its cost - In the wireless mode one has to buy multiple units for this scheme to work: the more devices you buy
-> the more you'll save!
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Old Jul 1, 2005, 10:47 AM   #4
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Does the new Canon 580 have any significant improvements over the obsolete 550?

How does the Sigma 500 super compare to the 580? I've only read postings comparing it to the 550.

--M
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Old Jul 1, 2005, 11:42 AM   #5
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Base differences between the two:

Canon EX 580
  • has a max GN of 190 feet @ ISO 100 & 105mm setting [/*]
  • has a socket for an external power supply[/*]
Sigma EF 500 DG Super
  • has a max GN of 165 feet @ ISO 100 & 105mm setting[/*]
  • half the price of the EX 580[/*]
  • has an onboard optical trigger
    [/*]
  • can be altered to use an external power supply(voids warrantie :-) )[/*]
Both can control e-ttl2 capable remote flashes

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Old Jul 1, 2005, 4:27 PM   #6
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mgipe wrote:
Quote:
Does the new Canon 580 have any significant improvements over the obsolete 550?

How does the Sigma 500 super compare to the 580? I've only read postings comparing it to the 550.
PeterP has the right idea; however I found it easier to remember in Metric: :-)

580 EX -> GN is 58 in meter
550 EX -> GN is 55 in meter
EF-50
0 -> GN is 50 in meter <- same price
42
0 EX -> GN is 42 in meter <- same price (but featureless)
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Old Jul 1, 2005, 6:29 PM   #7
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Clever memory guide, NHL!

So, if I buy the Sigma, all I really suffer is a little brightness. But for the same money as the Canon, I could buy two Sigmas and have more versatile lighting options.

--M


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Old Jul 1, 2005, 6:49 PM   #8
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that is correct mgipe.. the sigma is plenty powerful though.. mine is awesome, and the sto-fen diffuser for either the 550ex or the 580ex works fine..


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Old Jul 1, 2005, 6:51 PM   #9
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Good guide :!:
:homey: Doh: I'll have to stop myself from trying to convert everyting to feet all the time.

Peter.
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Old Jul 2, 2005, 5:26 AM   #10
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mgipe wrote:
Quote:
So, if I buy the Sigma, all I really suffer is a little brightness. But for the same money as the Canon, I could buy two Sigmas and have more versatile lighting options.
You should buy two (I use 3):
1. Two Sigma's combined are brighter than one Canon! :idea:
2. You can now do ratio with two head's
3. Or you can turn one Sigma into an ST-E2 controller by shutting its output for that side-lit :-)
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