Help with EXPODISC
Jul 27, 2012 21:51:57 #
ARTISFORBES
Loc: Norfolk VA
Can anyone explain the procedure for Custom White Blance
when useing a flash (Canon Speedlite 430EX) on hot shoe.
Camera type(Canon T3i).
when useing a flash (Canon Speedlite 430EX) on hot shoe.
Camera type(Canon T3i).
Jul 28, 2012 07:24:18 #
Jul 28, 2012 10:49:44 #
Set up the shot (exposure, flash etc.)
put the Expodisc on
take a shot
use image as your custom w/b
put the Expodisc on
take a shot
use image as your custom w/b
Jul 28, 2012 11:14:17 #
Jul 28, 2012 11:18:45 #
Falcon
Loc: Abilene, Texas
I think it would be rather tricky. As I understand it, the ExpoDisc is used to read incident light rather than reflected light. That means you put the ExpoDisc over the lens, stand where your subject is located, and read the light from your light source. If you are using on-camera flash, or an off-camera flash held near the camera, you cannot get a light proper incident light reading.
A gray card, on the other hand gives you a reflected light reading--the light reflected from your subject. You take a shot of the gray card (being held by or close to your subject) and use that to set the custom white balance.
A gray card, on the other hand gives you a reflected light reading--the light reflected from your subject. You take a shot of the gray card (being held by or close to your subject) and use that to set the custom white balance.
Jul 28, 2012 13:24:45 #
Jul 28, 2012 14:47:32 #
Falcon wrote:
I think it would be rather tricky. As I understan... (show quote)
I use it exclusively in reflected mode, flash or no flash. You can use it in incident mode but as a practical matter, reflected is fine.
Jul 28, 2012 19:17:14 #
sueyeisert
Loc: New Jersey
With flash,I set up for the picture following my camera's instructions for a CWB. I use the expo disc pointing toward the subject and take the CWB with flash firing.
A rep from expo disc told me that was fine.
A rep from expo disc told me that was fine.
Jul 28, 2012 22:40:27 #
I asked a similar question of the Expodisc people.I was asking what you would do if you couldn't get to where the subject would be.They said in that case,just take a shot from where you are.
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