Please wait...

Continue shopping
or View cart & checkout
Continue shopping
or View cart & checkout

Unfortunately your current device does not have features required to fully protect your sensitive data while shopping online. In order to protect your own security, we do not allow the placing of orders using insecure devices. To become our valued customer, please upgrade your Internet browser software to a more recent and secure version. We recommend using the latest version of Google Chrome or Mozilla Firefox, but any modern browser will enable you to shop with us. For additional information please feel free to contact our customer support on 1-800-342-5534 .

Expo-Disc Expo Disc 55mm

KEH Model# 331354

This product is currently out of stock. Please contact a KEH photography expert to discuss similar options.

Call 1-800-342-5534 or chat with us online!

Expo-Disc Expo Disc 55mm Description


The filter is, in effect, a gray card in a lens cap, letting photographers read and set white balance before shooting, eliminating the need for post-capture color adjustments. The filter works with film, digital cameras and digital video, and is available in six standard sizes from 58mm to 82 mm. The filter makes it possible to give the same, consistent white balance reference to an entire body of photographic work, allowing photographers to set white balance in mixed lighting conditions. The snap-on disc is a neutral diffusion filter that gathers ambient light from 180 degrees and passively transmits 18 percent of it through to the camera's light meter. The resulting "gray frame" accurately represents the colorcast of the light in which the photograph is being taken. From this gray frame, users can set a custom white balance with the digital camera's menu, resulting in accurate color in almost all lighting conditions. Each filter is manufactured and individually calibrated to fall within 1/12th f/stop accuracy for exposure.

KEH Specifications

  • Quickly Set Your Camera White Balance
  • Works for Still and Video
  • Provides Accurate, Consistent Color
  • Calibrated and Certified for Neutrality
  • Use in Ambient, Studio or Mixed Light
  • Easy to Use, Durable, Compact
  • 55mm filter thread


General information

Brand Name ExpoImaging