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ExpoImaging ExpoDisc
Reviews Views Date of last review
3 5303 Sun July 29, 2007
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Recommended By Average Price Average Rating
100% of reviewers £70.00 10.0
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Description: ExpoDisc Digital White Balance Filter - Neutral
Professional Digital White Balance

"Photographers... now seem content to leave their digital cameras in a white balance mode that is at best a crap shoot and at worst completely inaccurate... Thankfully, a company called ExpoImaging is working very hard to make the process of getting a custom white balance so easy that it would be criminal to avoid the process."
David Schloss. PDN (Photo District News), December 2005.

Even the best digital cameras are incapable of consistently delivering accurate color without the user performing a custom white balance. Auto (AWB) and preset white balance functions often produce maddeningly inconsistent results. Images shot without a correct white balance may have unnatural looking red, yellow or blue tints that are time consuming and difficult, if not impossible to correct.

Recognizing the importance of custom white balance to good color, digital camera manufacturers have designed their cameras to take advantage of a custom white balance. A custom white balance calibrates the camera to the exact color temperature of light illuminating the subject.

The ExpoDisc (patent pending) is a custom white balance filter that allows digital photographers to quickly and easily set an accurate custom white balance. Consistently producing excellent results in natural, artificial, and studio lighting, the versatile ExpoDisc even excels in difficult mixed lighting environments.

The ExpoDisc is far easier to use than any gray card, white card or calibration target. Simply place the ExpoDisc in front of your lens and capture the incident light while setting your camera’s custom white balance. Using an ExpoDisc custom white balance will virtually eliminate the need for RAW or JPEG post-capture color adjustments.

ExpoDisc technology takes a unique approach to setting a custom white balance and producing accurate color. The ExpoDisc essentially uses your camera’s built-in custom white balance capability to turn the camera into an incident color-metering tool. This approach avoids the common problems and inconveniences associated with using gray cards, white cards and calibration targets: unwieldy size, unwanted reflectivity, improper angling and difficulty of filling the frame.

Each ExpoDisc is constructed of carefully selected and matched optical grade materials, then hand-calibrated to strict tolerances of color neutrality and light transmission.

The ExpoDisc is suitable for use with any digital SLR and digital video camera with a white balance function. ExpoDisc filters are available with quick pressure release mounts in six standard sizes from 58mm to 82 mm, and in flats for the 4x4 and 4x5.65 filter box systems from Lee, Schneider, Chrosziel and Arri.
Keywords: Digital White Balance Filter


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j sotelo
Feet under the table

Registered: November 2006
Location: San Diego, Ca. Where the Surf meets the Turf
Posts: 3234
Review Date: Sun February 18, 2007 Would you recommend the product? Yes | Price you paid?: £70.00 | Rating: 10 

 
Pros: Almost perfect color correction
Cons: Reprogram if you change lighting conditions

Can you imagine yourself shooting a wedding or a portrait session and putting a coffee filter over your lens, or using a grey card or even a white card and still not getting the results you want..so now here comes the Expodisc, I use the white balance disc. theres a size that fits every lens but if you want to do it the smart way, get your biggest lens and buy that size Expodisc and now you can use it with all your lens just by holding the disc infront of the lens, I was amazed with the results I was getting whether I was shooting on location or in the studio, I was getting accurate and consistent results every time.
So instead of shooting white cards in the middle of a job, just hold the ExpoDisc over the lens, and press the shutter release button. The precision ground elements in this 'filter' distribute the light to create a perfectly neutral grey image that can be used in-camera or during post processing to white balance the image.
There are other ways to work with the ExpoDisc. It can be used to take a WB reading from the subject, averaging all the values.
The ExpoDisk comes in a range of standard filter thread fittings and its available in 58mm, 62mm, 67mm, 72mm, 77mm and 82mm fittings.It is suitable for use with any digital SLR and digital video camera with a white balance function...It saved me a lot of time with color correcting with photoshop, mainly with my portraits....
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P-E
Part of the furniture

Registered: August 2005
Location: Sheffield, S.Yorkshire UK
Posts: 12236
Review Date: Thu February 22, 2007 Would you recommend the product? Yes | Price you paid?: £70.00 | Rating: 10 

 
Pros: So simple to use
Cons: Remembering to shoot new WB under changing like conditions

Even though I always shoot RAW I try as much as possible to use a 77mm Expodisc to achieve in camera WB.

Not much to say apart from that it is simple to use and is always one of the first I put in my camera bag on a days shoot.

This is the first bit of my kit that I have given a score of 10
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P-E
Part of the furniture

Registered: August 2005
Location: Sheffield, S.Yorkshire UK
Posts: 12236
Review Date: Sun July 29, 2007 Would you recommend the product? Yes | Price you paid?: None indicated | Rating: 10 

 
Pros: Simple to achieve a correct WB
Cons:

Well I have since purchased an 82mm Expodisc & the 4X4 one that fits the Lee filter system.

Again I think this piece of equipment is worthy of a score of 10
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