Silverman Loc: Michigan

Does anyone here have experience or knowledge concerning the "Expodisc" used to get proper WB when taking Portrait Photography.??
This product, the "Expodisc" is said to be more accurate than using a "Gray Card".

rgrenaderphoto Loc: Hollywood, CA

Of all the Professional portrait photographers that I know, all of them use a grey card or a X-rite color checker. None of them use the expodisc.

Now, Ken Rockwell likes it, so there's that.

jdubu Loc: San Jose, CA

I was given one a long time ago. I would never use it for color critical shooting. Color Checker Passport is the way to go with portraiture. I have used the Expodisc just for general photography or mixed lighting in casual use. Sometimes I use it as a base for a Kelvin reading to give me a base custom WB that I can batch adjust as needed.

lamiaceae Loc: San Luis Obispo County, CA

Nope. Grey Card or some brand of Color Patches (Color Checker).

Been using a Gray Card and / or Spotmeter for 40 years for exposure. Color Patches, say X-rite needed for critical color matching.

I think the Expodisc gives you a cheap fake incident light reading vs your camera's reflected reading.

User ID

The disc is a convenience for casual video.
Serves well enuf and conveniently for that.

etaoin Loc: Wichita, KS

I used my Expodisc with great success at two weddings. I was able to quickly change white balance between the sanctuary with stained glass windows and afternoon sunlight, the reception hall with mixed-color fluorescent lighting, to the foyer with yet different lighting, etc. No problems.

Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)

It may be more accurate than a grey card, which essentially is best for determining exposure, not color or white balance, but if you want the most accurate color, the XRite Color Checker Passport is way better.

This is worth a half hour of your time to view and digest:

https://www.youtube.com/watch?v=NDtebpvATzc

Expodisc is not reliable in mixed color lighting, non-continuous or lighting that cycles (LED, fluorescent, halogen, mercury vapor etc), and can produce inaccurate results in heavily color-casted settings. The best solutions address white balance (blue/yellow balance) AND tint (green/magenta balance). It provides a dual illuminant profile that will correct for settings with two light sources - often the case in real estate photography when you have cool light filtering in from a window or patio door, and much warmer light from interior lighting.

Also, it's the only way to achieve consistent color across multiple cameras - not an unusual situation if you are using multiple bodies or if you have two or more shooters. The CCP will make them exactly the same.

cameraf4 Loc: Delaware

I used the original Expo-disc in film days. It gave dead-on exposure recommendations for slide film. Now that Mr. Wallace has passed, his daughter has seen the importance of WB determination in digital pics. I bought one, use it in tricky light, and like it.

Deanie1113

I was really disappointed with it. I had too-warm colors when used outside consistently. It sits in a drawer. Gray card was better.