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Technical Details
- Optimized for portraiture
- Warms image (equiv. 81A warming filter)
- Use in ambient, studio or mixed light
- Durable, compact and lightweight
- Easy to use, no software required
Product Details
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Product Description
From the Manufacturer
ExpoDisc Professional Custom White Balance Filter
Features:
- Capture Beautiful Skin Tones
- Ideal for Portrait Photographers
- Quickly set white balance for photo and video
- Meter 18% Incident Exposure
- Individually hand calibrated, tested and certified in U.S.A.
- Durable aluminum filter mount
- Includes nylon storage pouch and yellow woven lanyard
Why should I white balance with an ExpoDisc?
Because it saves time. The ExpoDisc Professional White Balance Filter can be used to quickly set a custom white balance, virtually eliminating the need for RAW and JPEG color adjustments.
When used to set a custom white balance, the ExpoDisc consistently produces excellent color in natural, artificial, and studio lighting, and it even excels in difficult mixed lighting environments.
What is the ExpoDisc Portrait Professional White Balance Filter?
Designed specifically for portrait photographers, the ExpoDisc Portrait Filter enhances and accentuates healthy skin tones. Rather than producing an image file with neutral whites, the filter first neutralizes, then enhances the image with a subtle warming effect. The ExpoDisc Portrait Filter effectively adds pleasing red tones to the entire image, producing an image with subtle red highlights in the hair and skin.
Simply read and set white balance with the ExpoDisc Portrait Filter in place to consolidate several on location and post processing steps into one quick and easy custom white balance procedure. When used to set a custom white balance, the ExpoDisc Portrait Filter enables photographers to generate custom color at capture in a single, time saving step.
What is the Difference Between the ExpoDisc Neutral and Portrait Filters?
The ExpoDisc Portrait Filter is calibrated to add a slight amount of warming when compared to an ExpoDisc Neutral's white balance, for more pleasing skin tones. The set of images at right were taken using off-camera strobe light in a studio setting. The first image was taken using the camera's own Auto White Balance setting. The second image (middle) was taken using the ExpoDisc Neutral to white balance the camera. The third image (right) was taken using the ExpoDisc Portrait to white balance the camera.
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 applied to all subsequent images taken using the custom white balance applied from the selected light reading.
Or, if you prefer shooting in RAW and batch processing later, simply capture a reference image through the ExpoDisc to use later with your image processing software.
How is the ExpoDisc different from other white balance tools?
We individually adjust each ExpoDisc using multiple custom filters to correct for any variation in base materials. This precision ensures that your camera applies the correct color adjustments when setting a custom white balance.
Using an ExpoDisc is also easier than using unwieldy exposure targets and gray cards, awkward tools that often require an extra set of hands to hold and position properly. To use an ExpoDisc, simply attach it to the end of your lens before setting a custom white balance or metering for exposure.
How are ExpoDiscs constructed?
ExpoDiscs are made from multiple layers of custom formulated materials contained within a high grade anodized aluminum filter ring. We measure and calibrate each ExpoDisc at our California facility to exacting standards. The ExpoDisc's 18% light transmission is ideal for setting a custom white balance, as well as metering for incident exposures in ambient light.
Will the ExpoDisc work with my camera?
The ExpoDisc can be used with any digital camera with a custom white balance capability, including all digital SLRs and most point & shoot cameras. The ExpoDisc works with all major camera brands, including: Canon, Nikon, Sony, Pentax, Olympus, Samsung, Lumix, and Leica.
How do I use the ExpoDisc?
Getting great color with the ExpoDisc is easy. To set a custom white balance with the ExpoDisc, simply place the disc in front of your lens and follow your camera’s custom white balance procedure to capture an incident light reading through it. For most cameras, this procedure takes about 15 seconds. That’s it. If you’re shooting JPEG you’re done. And if you’re shooting RAW, simply download your images as shot and save yourself valuable time correcting color. No special software, and no post processing required.
Does the ExpoDisc work for video applications?
Yes, the ExpoDisc can be used to quickly white balance any digital video camera with a custom white balance function. White balancing your video camera with an ExpoDisc will save valuable time in the editing room adjusting for color casts and inconsistent color.
How does the ExpoDisc attach to my lens?
The ExpoDisc was designed to make white balancing your camera easy. To help accomplish this, the ExpoDisc quickly attaches to the lens using an innovative friction mount design. When gently pushed into a threaded lens or filter, three small spring loaded ball bearings located around the filter ring slide over the lens threads to hold the filter in position until removed.
Do I need to buy an ExpoDisc for all my lenses?
No, if you have multiple lenses you can purchase an ExpoDisc to fit your largest lens. When using smaller lenses, simply hold your larger ExpoDisc flush over the end of the smaller lens.
What ExpoDisc filter sizes are available?
ExpoDisc Professional Custom White Balance Filters are available in standard filter sizes, including 52mm, 58mm, 62mm, 67mm, 72mm, 77mm, 82mm, as well as 4x5.65 Video Format Filters.
Every ExpoDisc is individually hand calibrated, tested and certified in the U.S.A.
Contents:
- ExpoDisc White Balance Filter - Portrait
- Nylon Filter Pouch
- Yellow woven lanyard
- Certification Card
- QuickStart Guide
What is a custom white balance?
Even the best digital cameras struggle with consistently reproducing accurate color. Images shot with incorrect white balance may have unnatural looking red, yellow or blue tints that are time consuming and difficult to correct.
To help photographers cope with this problem, digital camera manufacturers have designed their cameras with multiple white balance functions, including Custom White Balance, Automatic White Balance (AWB), and factory Preset color temperature settings for Sun, Shade, Tungsten, Fluorescent, Flash, and Cloudy. When shooting, photographers must select one of the camera's fixed white balance settings to apply in-camera, or to apply later in post processing if using the RAW file format.
Unfortunately, Auto White Balance (AWB) often produces maddeningly inconsistent color results, and the color temperatures assigned to the camera's Preset white balance settings often do not reflect real world lighting conditions, causing a color-cast.
Using the Custom White Balance function remains the most reliable way to consistently reproduce accurate, balanced color in digital cameras. The custom white balance function eliminates the inconsistencies of AWB and the gross generality of factory Preset color temperatures because it allows the user to calibrate the camera to an exact color temperature at image capture. The custom white balance procedure requires a neutral reference like the ExpoDisc to measure the color of light accurately.
