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Old Sep 27, 2004, 12:58 PM   #1
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I am looking to get an external flash for my 10D (and maybe a 20D if I get one)

The types of things I would use it for is for glamour, portrait, and some action photography where I need additional light.

I am not sure which of these flashes would be good to go with. For the most part, I shoot Aperature or Shutter priority...

Out of the 420EX and the 550EX, which would be a good way to go? Other suggestions?

Thanks






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Old Sep 27, 2004, 1:28 PM   #2
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Neither... The 420EX is stricty an automatic flash only while the 550EX (which I have) is obsoleted by the 580EX.

How about a Sigma EF500DG Super?
(It will sync with studio strobes too)

http://www.sigma-photo.com/html/news/500dg_super.htm
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Old Sep 27, 2004, 1:31 PM   #3
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NHL wrote:
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Neither...

How about a Sigma EF500DG Super?
(It will sync with studio strobes too)
The Sigma eh? I know that you are a big Sigma fan, so can you tell me what makes this one a better choice than either of the Canon? Thanks.


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Old Sep 27, 2004, 1:44 PM   #4
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Zendragon wrote:
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The Sigma eh? I know that you are a big Sigma fan, so can you tell me what makes this one a better choice than either of the Canon? Thanks.
No brainer here, it's value/features just can't be beaten!

1. Cost - for about the same amount you pay for a 420EX you get the feature and most of the power of the 550EX
2. Features - Built-in photo slave similar to most studio strobes - Flash Exposure Bracketing - 2nd curtain sync - Modeling lights... etc
3. Master + Slave (or can replace an ST-E2 controller) functions. The 420EX is an automatic slave only with no manual overide
4. Independent Master/Slave mode which can work with any camera brands (in case you switch brand later)
5. Recycle time
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Old Sep 27, 2004, 2:45 PM   #5
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I was reading this article about the flash

http://photonotes.org/reviews/sigma-ef-500-super/

This is a concern however:
  1. The 550EX works with all Canon digital cameras which support EX series flash units, including the digital point and shoots. Sigma make no claim that the EF-500 Super will work with Canon's digital point & shoot cameras such as the PowerShot Pro 90, G1 or G2. It doesn't work correctly with the G1 or G2. Reports are inconsistent as to whether it works with Canon's first round of second-generation digital SLRs - the 1D, D30 and D60. Apparently it does not work correctly with the EOS 10D. Sigma have announced a DG version of the flash which is digital-compatible (see below).
[/*]
As are the issues listed in the problems section. What camera are you using? And have you experienced any of these issues?
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Old Sep 27, 2004, 4:00 PM   #6
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Exactly, you can not buy the non-DG (or non-Super) version!

I have the EF500DG Super version and they are 100% compatible with my 550EX and the 10D, including all their wireless modes!
(BTW they just revised it again to work with the Nikon i-TTL as well)

http://www.stevesforums.com/forums/v...m_id=37&page=1
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Old Sep 27, 2004, 4:05 PM   #7
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Now that the 550EX are down to under $300 price wise, it the Sigma still the better deal?

Does the Sigma have an auto mode?


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Old Sep 27, 2004, 4:17 PM   #8
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Zendragon wrote:
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Now that the 550EX are down to under $300 price wise, it the Sigma still the better deal?
Well... It's up to you (the Sigma is less too if you shop around)

You need to buy at least two for the wireless mode -> $400 vs $600. Plus you still can't sync the 550EX to studio strobes without an adapter if you decide to do this in the future...



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Does the Sigma have an auto mode?
Neither does the 550EX - just E-TTL. It has a built-in computer however where you can set the ISO and the aperture and it will give you the distance... If this distance is too far then you can reduce to the distance markings on the lens and the output of the EF500 will be decreased accordingly. No self-contained Auto-thrysistor mode like on the Metz 54MZ4, but then that flash costs more than the Canon!
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Old Sep 28, 2004, 6:38 AM   #9
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Just to give an alternative opinion. I bought the Sigma 500DG Super, but returned it for the 550EX. No regrets I did that. There were a few things with the Sigma and the 10D that I didn't like. The 550EX is built better. I never got the Sigma to work with my two 420EX flashes to get proper exposure. Somehow (I think) the pre-flashing didn't work quite right to get the camera to compute the right exposure settings.

Anyways, I know the Sigma works for many people fine, and it is a lot cheaper than the 550EX or 580EX. But I personally like to stay with Canon equipment. At least compatibility is guaranteed.

Barthold
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Old Sep 28, 2004, 9:57 AM   #10
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Beauty is only skin deep - sorry can't resist :-)

My two EF500DG Super's consistently recycle faster than the 550EX (which Canon seems to fix in the 580EX) - The 550EX is always the last to be readied!
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