580 EX underexposing

Eddy H-63

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Guess I am doing something wrong but whenever I am using the 580, almost all of my pictures are underexposed...

Anybody similar issues? Any suggestions where this could come form?

Thanks,

Eddy
 
Find the reason YOU are not using the camera correctly. Most often
the user will expose against the wrong gray tone and/or use metering
that will throw off the exposures. This is why some learn exposure with
the use of a gray card.

The camera user has to meter carefully to get it right. Flash will over
power at close distances, so you may have to power it back.

When learning flash, put the flash on manual. Power it down to 1/8
or so and look at the distance scale in the flash window. Are you within
that range of the subject? Good flash is about understanding those distance
settings, proper ambient camera settings and some techniques in metering
modes. One might use spot metering at times and evaluative or partial at others.
Develop a system for yourself. There are several ways to get the same results so
you have to use one that makes sense for you. I enjoy spot metering quiet a bit
for outside daylight work for example. I might switch back to evaluative for
shade.

Do some reading on proper fill flash on the web. Set your camera near to
ambient settings as possible and let the flash do the rest. ****** it or boost
the compensation on the flash as needed.
Guess I am doing something wrong but whenever I am using the 580,
almost all of my pictures are underexposed...

Anybody similar issues? Any suggestions where this could come form?

Thanks,

Eddy
 
I usually dial in a flash compensation of +2/3, and it works well as a rule of thumb for me. Also, using the M-mode is the method I find easiest to give consistent results.

Then again, flash photography is a bit tricky to get right, and I'm still learning.

--
peace,
Tormod in Stockholm
http://www.airwhale.com/
 
the manuals do not cover flash exposure metering very well.

After I read and digested the following I have had far fewer problems with the Canon system. It is very powerful and capable when used correctly.

http://photonotes.org/articles/eos-flash/

Of particular note is the use of the * button for flash exposure locking in a focus/recompuse situation because often off center subjects seem to confuse the flash exposure metering more than they would regular ambient exposure metering.

best

Matt
 
I only can tell you about my experience.
I just bougth recently, last week :), an 580ex.

I am still using a 10D. I was very surprissed with the output from the 580ex, untill now it seems very constant and the output is very nice.
My next item is going to be a difuser.
 

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