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Old Oct 20, 2003, 11:51 AM   #1
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Default Speedlight 420EX

What's a good source to learn about the uses of the external flash? The on-camera flash seems to do a pretty good job. When do I use the big boy? Thanks.

Alex
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Old Oct 20, 2003, 1:44 PM   #3
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The reach of the oncamera flash is very limited. I believe its guide number is only about 10. The 420Ex is a much more powerful flash (4 times more or so.)

It's also further away from the lens, which reduces redeye. I don't know if it can be redirected like the 550EX (which I have) which helps with softer shadows (bounce it off the ceiling.)

Personally, I use the 550 for a powerful fill flash (when the subject is backlit) and a powerful flash when I just need more light. My subjects are usually animals which are further away. So I need as much reach as possible.

As for a link to learn more, check out this link:
http://eosseries.ifrance.com/eosseri...work_gene.html

It is a translation of a Canon manual which is supposed to be very detailed and very good. It's a bit hard to read (because of the translation) but what little I've read of it was helpful to me.

Good flash photography is not easy, so don't expect amazing results the first time out.

Eric
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Old Oct 20, 2003, 1:59 PM   #4
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... and more here:

http://www.colorshots.com/cs103e/htm...how_blitz.html
http://www.camera.canon.com.my/archi...lm21/index.htm
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Old Oct 20, 2003, 7:01 PM   #5
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The 420EX can be bounced off the wall or ceiling. It's a great fill-in flash, but is fully automatic... no adjusting the output settings like the 550EX.

I'll vouch for the extra power it provides over my built-in flash and have never been disappointed by the results, but will admit I'm not a professional.

I use my 420EX with a Pro90 and it's a worthwhile tool. Costs about half of a 550EX and does everything I need to do.
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Old Oct 21, 2003, 11:21 PM   #6
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Quote:
Originally Posted by Wildman
The 420EX can be bounced off the wall or ceiling. It's a great fill-in flash, but is fully automatic... no adjusting the output settings like the 550EX.
You can with the 10D and the 420EX by setting the flash-exposure compensation on the camera.

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