Save Time - White Balance In 15 Seconds or Less

The ExpoDisc consistently produces excellent color in natural, artificial, studio, and mixed light environments.

To set a custom white balance, place the ExpoDisc in front of the lens and follow your camera's custom white balance procedure to capture an incident light reading through it. Aim the camera towards the dominant light source (just like an incident light meter) to set an accurate white balance.

For most cameras, this procedure takes less than 15 seconds.

ExpoDisc 2.0 is protected by US Patent No. 7,719,606 B2.

No Photoshop Required - Get Great Color In-Camera

Eliminate the need for RAW or JPEG post-capture color adjustments by setting a custom white balance in-camera with an ExpoDisc.

No special software, and no post-processing required.

Adjusting color temperature and tint in post production can be a time consuming and inconsistent method of white balance correction that can be avoided by setting an in-camera white balance with the ExpoDisc.

If shooting RAW, simply set your in-camera white balance and download your images 'as shot' to avoid time spent correcting color.

Every ExpoDisc is Calibrated and Certified in the USA

Each ExpoDisc is tested by hand on a transmission spectrophotometer and adjusted for neutrality using custom formulated materials to ensure an 18% total light transmission across the visible spectrum.

Neutrality in a white balance tool is critically important because using a non-neutral tool for white balance can add undesirable color casts to images.

Every ExpoDisc 2.0 includes its own quality control card to certify its neutrality and 18% total light transmission.

Easier to Use than a Gray Card or Calibration Target

The ExpoDisc is far easier to use than any gray card, white card, or calibration target because it fits in your pocket and enables you to quickly and easily set an accurate in-camera custom white balance.

To use the ExpoDisc for white balance or exposure metering, simply place it in front of your lens and meter or capture an incident light reading.

Calibration targets and most gray cards on the other hand must be placed in the scene or carefully held by your subject and then photographed for post production processing and color correction.

Meter 18% Incident Exposure

The ExpoDisc is not just for white balance. The precision calibration and uniformity of the ExpoDisc means that it can also be used to meter for an 18% incident exposure.

To meter for an 18% exposure, stand at the subject's position and aim the camera back toward your intended shooting position. Use the camera's meter as seen through the viewfinder to adjust the aperture, shutter speed, or ISO until a proper exposure is indicated.

It is also possible to make exposure adjustments based upon the position of the histogram spike on an ExpoDisc test shot. Adjust the aperture, shutter speed, or ISO until the spike is centered in the histogram.

How Does the ExpoDisc Work

Your camera's internal light meter measures the color temperature of light passing through the ExpoDisc to make an "in-camera" color adjustment. This color adjustment is then applied to all subsequent images taken using the custom white balance from the selected light reading.

Or, if you prefer shooting in RAW file format and batch processing later, simply capture a reference image through the ExpoDisc to use with your image editing software.

Whether shooting in RAW or JPEG, using ExpoDisc to white balance saves valuable time editing photos and video.

Hold A Larger ExpoDisc Over Smaller Lenses

The ExpoDisc 2.0 is available in 77mm and 82mm filter thread sizes. It uses a push button mount design to attach quickly and securely to equivalent sized 77mm and 82mm lens filter threads.

If you have lenses smaller than 77mm you can simply hold a larger ExpoDisc flat against the end of the smaller lens to set your white balance or meter for exposure.

The ExpoDisc can be used with any digital camera with a custom white balance capability, including all digital SLRs. The ExpoDisc works with all major camera brands, including: Canon, Nikon, Sony, Fuji, Leica, Olympus, Panasonic/Lumix, Pentax, Ricoh.

White Balance Your Studio Strobes

Maintaining a consistent color balance with your studio flash can be difficult if you're shooting with poorly matched or aging studio flash equipment.

Even the best studio flash emits light at different color temperatures as its power output is increased or decreased. The age and condition of the flash's electronics, flash tubes, and light modifiers can also negatively affect its color consistency.

Setting an accurate custom white balance with an ExpoDisc can help you to maintain a consistent color balance that ultimately saves valuable time correcting color later in post processing.