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Me - Portrait of a Young Man as The Artist — LiveJournal

Originally uploaded by ABMann
Photo/Photography: I tried, about two years ago, to really understand flash photography and light theory and all that jazz. I have a series of photos, nothing special, with off-camera and on-camera flash here. It never really mae sense to me until last night.

I would take a photo. Look at the results. Adjust exposure and shoot again. Look at results. Get frustrated because everything was wrong. It turns out that in flash photography Aperture and Shutter speed work differently when you're using Flash. OH OK. Ultimately it is logical but hardly intuitive.

Suffice that aperture controls the exposure of the flash light only and shutter speed controls ambient light exposure. Considering that flash light is many times more powerful than ambient light when you're using a flash, it follows that aperture opening wider will have far more affect on the influx of flash light immediately upon shutter release and lingering shutter will affect ambient light because flash light is non-persistent.

See, logical. I was thinking of the flash light as ambient light, persisting and constant which is entirely false with flash. Flash does, by definition, flash.

I felt dumb last night when I realized that elbow deep in four books on flash photography. I think I even slapped my head a little.

Which killed those brain cells.

And I forgot everything.

What? What happened? Who are you? Get off my lawn!

Tags: , , ,
Current Location: Working reluctantly
Current Mood: groggy groggy
Current Music: Hunter S. Thompson - The Gonzo Tapes: The Life And Work of Dr. Hunter S. Thompson (Unabridged)

8 comments or Leave a comment
lady_fox From: lady_fox Date: March 5th, 2009 05:54 pm (UTC) (Link)
That is a very cool photo.

Yay learnin' things!
abmann From: abmann Date: March 5th, 2009 05:55 pm (UTC) (Link)
I had dreams about waveforms and lumen and guide number/aperture calculations.
lady_fox From: lady_fox Date: March 5th, 2009 06:08 pm (UTC) (Link)
abmann From: abmann Date: March 5th, 2009 06:10 pm (UTC) (Link)
I think I wrenched my back a little. I'm sore today. Apparently the dreams were stressful.
lady_fox From: lady_fox Date: March 5th, 2009 07:31 pm (UTC) (Link)
:( No fun.

The day's being pretty stressful too, really. Wings tonight! And maybe booze.
abmann From: abmann Date: March 5th, 2009 07:32 pm (UTC) (Link)
Too many calories to do both.
lady_fox From: lady_fox Date: March 5th, 2009 07:40 pm (UTC) (Link)
_radioactivity From: _radioactivity Date: March 5th, 2009 08:26 pm (UTC) (Link)
i've always struggled with flash. this post was very informative for me. i'm so totally saving it to my memories.
8 comments or Leave a comment