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anyone useing the expodisc???
Old 04-15-2004, 11:18 AM   #1 (permalink)
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http://www.expodisc.com/
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Re: anyone useing the expodisc???
Old 04-15-2004, 02:36 PM   #2 (permalink)
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Three stacked white coffee filters will get you within 5% of the expodisc. Do a search on Fred Miranda's site for the hickspodisc. A guy took a broken polarizer and made his own using a 3M respirator filter - homedepot to the rescue again!

I shoot RAW and have complete control over whitebalance so the expodisc really isn't necessary for me, other than perhaps saving a little time in post.
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Re: anyone useing the expodisc???
Old 04-15-2004, 03:19 PM   #3 (permalink)
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I attended a workshop by Kevin Kubota and he talked about the expo disc. He took a few pictures and checked the RGB for everyone to see. The pictures were dead on. Since then I've been meaning to buy one just haven't got around to it. I think I need to start a To Do List. Anyway it was very simple to set the white bal. and they fit in your pocket.

Patrick
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calibration target ...
Old 04-16-2004, 05:24 PM   #4 (permalink)
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I use the calibration target method with great results. Here is the link:

http://digitalphotosolutions.net/target.html

Comes with a 1 hour dvd that exposes all the details.

By the way, you can also make the expodisk out of a coffee filter:

http://www.melor.com/projects/expo_discussion.PDF

Cheers,
rfs
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Re: anyone useing the expodisc???
Old 04-17-2004, 11:58 AM   #5 (permalink)
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I guess the expo dics is OK....if your camera uses a Grey Card for balancing.
I have tried telling a photographer friend of mine that same fact for over a year. He has a Fuji S2...(which is white card balanced) and he can't figure out why his images dont look like his other buddies that have grey balance cameras. Uhhh....dork.

I don't think they work well for the S2....but that's my opinion.
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Huh?
Old 04-17-2004, 12:36 PM   #6 (permalink)
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There's no such thing as a "gray balanced" camera. The reason photographers use the gray side is to prevent overexposing the reference when metered manually. When using the internal meter, both white and gray will be rendered the same - as gray. The camera sinply underexposes the white to the same value as if you had used the gray. All that matters is that the reference contain equal RGB components.

As for the differences between cameras, they all have their own distinct color "flavor". Pick your flavor before buying.

David
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