CBL 110mm Color Balance Lens System Review

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(More customer reviews)I know there are so many light balancing tools out there that it seems that you can't go to a camera show without seeing one per aisle. But I really fell for this when I saw it at WPPI. Basically it is an incident meter. Hold it at subject position so it reflects to the camera the light falling on the subject. Shoot a target shot and capture it. The key over expodisc is that it measures the light on the subject NOT the light on the camera position. Also it is the only one that can give accurate readings in mixed light. I own it and shot with it. I also have seen Hanson Fong use it and really respect Hanson's chioces.

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The CBL Color Balance 110MM Lens is a valuable tool for proper color balance and consistency. This 2-sided disc comes complete with a gray side and a white side, allowing you to use one side for proper color balance and the other side for proper exposure. You simply hold the CBL in front of your camera and either make an evaluation or take a white-balance-reference picture. You should assure that the subject's dominant light source is also falling upon the CBL. Thanks to its complex, varied collection of prisms and lenses upon the 'white' side, the CBL grabs a large mixture of the light source and directs it into the camera during the white balance evaluation.FEATURES:
Incident-Light Color Balance Capability for improved accuracy
Works with Most Lenses & Digital Cameras/Camcorders of a compatible size
Eliminates Post-Processing Fuss
110mm Large disc is suitable for professional lenses with large front elements
Durable, water-proof materials
Carefully-selected permanent tones of white and gray

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ExpoDisc EXPOD67 67mm ExpoDisc Neutral White Balance Filter Review

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(More customer reviews)I purchased ExpoDisc 72mm. Here is test result, using Photoshop:
SETUP: Took a gray frame under incident light source per ExpoDisc instruction, using camera Canon EOS 40D, 28-135mm lens.
IMPORT to Canon software "Digital Photo Professional" FOR WHITE BALANCE: Use this gray frame to do white balance itself. A result of a final Gray Frame.
IMPORT this final gray frame to Photoshop FOR MEASUREMENT: Using Photoshop Color Sampler Tool.
Result finding in 256 color scale (0 - 255):
Green & Blue = Mostly about equal.
Red = Always about 10 (in 256) value higher than the other two.
Example:
Green = 112
Blue = 114
Red = 124
I repeated this type of test several more times, result are still much off from scientific theory or way out of range (10 in a range of 256 or 4% error from neutral).
Supposely: Red = Green = Blue to call Neutral.
So this ExpoDisc is for convienent only. OK for none important picture. Way too high price for a non-precision piece.


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The ExpoDisc white balance filter allows digital photographers to quickly and easily set an accurate custom white balance. Each ExpoDisc is individually assembled, calibrated and certified for neutrality in the visible spectrum, and for 18% light transmission. The ExpoDisc can be used on-the-fly to set a white balance in-camera when shooting JPEG, or later in post production when shooting RAW. Using an ExpoDisc to set a custom white balance results in consistently balanced color and eliminates many of the yellow, red and blue color casts commonly seen in digital photography. The ExpoDisc is easy to use. Setting a white balance with the ExpoDisc eliminates many of the inconsistencies and inconveniences associated with using white balance cards and targets, including unwieldy size, unwanted reflectivity, improper angling, and shadows. To set a white balance with an ExpoDisc, simply take a photograph of the light source (incident light) through the ExpoDisc, then follow your camera's instructions to set the camera's custom white balance.Because the ExpoDisc is calibrated for an 18% light transmission, you can also use it as a reference tool for manually determining proper exposure.The ExpoDisc is available in a variety of sizes to fit most popular lenses. The ExpoDisc does not thread into the lens; instead, its quick mount design can be pushed-on and popped-off to facilitate a quick white balance.

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PhotoVision 14" Pocket One-Shot Digital Calibration Target with DVD, Collapsible Disc Exposure Aid for Digital Cameras Review

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(More customer reviews)This "target" comes with an instructional DVD containing good material to learn how to use it both indoors and outdoors. The target can be used to both set a correct white balance as well as to set your exposure correctly (in particular, manually).
Once you take your shots and you download them to your computer you can further adjust the white balance with tools like Photoshop by "eye dropping" the three colors (white, gray, black). This is especially true when shooting RAW. With other tools, you can "eye drop" the gray bar to get similar results.
This target is very useful when you shoot indoors, where you have more control over the lighting. However, you can end up having to use the target many times when you use it outdoors.

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Loss of Highlight or Shadow detail is reduced or eliminated by the use of this 14" Digital Target which has black, white & 18 % gray panels that feedback through the camera's histogram providing correct exposure with predictable results.Still large enough to fill the frame in most situations but folds to just 6 inches to allow carrying in your pocket or instant access when using with the included belt pouch slip case. Soft silver fabric on the backside creates an efficient reflective surface to open up the shadows.Created by photographer Ed Pierce, perfect for the Digital Image Maker both in the studio or on the go. The Panel feeds back through the camera's Histogram. Rather than using a single middle tonal value, you can customize your exposure based on the histogram spikes that record the highlight & shadows. The Neutral 3-Tone Panels allow for custom white balancing, accurate metering and exposure monitoring through the camera's histogram function all with a single shot. Vastly improves setup time over the original target, minimizing the need for post correction to your image files.Drastically reduce your workflow on the back-end by getting it right on the front-end. By using the Digital Calibration Target, you can achieve perfect exposures and white balance every time.Included is a One Hour Instructional DVD featuring Ed Pierce, the Target's inventor. The DVD provides an in-depth understanding of di

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ExpoDisc EXPOD72 72mm ExpoDisc Neutral White Balance Filter Review

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(More customer reviews)I own a 30D and was spending too much time in photoshop correcting the white balance on ALL my photos! Even though this is my first SLR of any kind,I don't use any of the automatic modes. I'm learning how to use all the creative aspects of this camera. I didn't know anything about color temperature. The factory default was 5500K, so I left it there & used AWB & the daylight setting. I mostly shoot during the day or before sunrise. ALL of my photos had a bluish tint!......Out of frustration,I surfed the net for an answer & stumbled across the expodisc. I immediately ordered a 72mm filter to fit my 28-135mm. WOW! did it ever make a difference!! I now keep my white balance on the custom setting for ALL my pix!
I suggest you go to their website to read the full explanation,testimonials from pro photogs & also see some before & afters. Then come back to Amazon to buy because it's cheaper here. I would also suggest that you get the expodisc that fits your biggest lens. I wish I would've bought the 82mm instead because I plan on buying the 16-35mm ii in the future. Even the video that comes with it suggests that you buy the disc to fit your biggest lens. You just hold the expodisc against your lens & take a shot. It doesn't need to be attached. You can see a short video of it on you tube,which is where I first spotted it.
Before finding the expodisc I had looked into a color temperature meter. It's $1400 on Amazon!!!!! A good light meter is over $1000.00!!! I'd rather spend $100!!! The best thing about this tool is that it helped me to understand color temperature. My pix had a bluish tint because the color temperature was too low at 5500k for daylight. With the expodisc, that same picture had a color temperature of 6800k! The colors were stunning & I didn't have to do any post processing besides cropping or resizing! I shoot in Raw + Jpeg mode.
Maybe once I get more proficient with Photoshop,post processing won't be such a pain for me. But until then,whenever my camera comes out, my expodisc goes around my neck. If the light changes, I just take another custom reading with the expodisc! I will never be without it!!!
HIGHLY, HIGHLY RECOMMEND THIS TOOL!!!!!!!

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The ExpoDisc white balance filter allows digital photographers to quickly and easily set an accurate custom white balance. Each ExpoDisc is individually assembled, calibrated and certified for neutrality in the visible spectrum, and for 18% light transmission. The ExpoDisc can be used on-the-fly to set a white balance in-camera when shooting JPEG, or later in post production when shooting RAW. Using an ExpoDisc to set a custom white balance results in consistently balanced color and eliminates many of the yellow, red and blue color casts commonly seen in digital photography. The ExpoDisc is easy to use. Setting a white balance with the ExpoDisc eliminates many of the inconsistencies and inconveniences associated with using white balance cards and targets, including unwieldy size, unwanted reflectivity, improper angling, and shadows. To set a white balance with an ExpoDisc, simply take a photograph of the light source (incident light) through the ExpoDisc, then follow your camera's instructions to set the camera's custom white balance.Because the ExpoDisc is calibrated for an 18% light transmission, you can also use it as a reference tool for manually determining proper exposure.The ExpoDisc is available in a variety of sizes to fit most popular lenses. The ExpoDisc does not thread into the lens; instead, its quick mount design can be pushed-on and popped-off to facilitate a quick white balance.

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ExpoImaging ExpoDisc 77mm Digital White Balance Filter - Neutral Review

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(More customer reviews)If you struggle trying to "fix" your images' white balance after your digital capture, this item is your answer. Put it on over your lens, point it toward the dominant light source (such as that funky incandescent / fluorescent light mixture in most homes), take a photo, and set the Custom White Balance in your camera. That's it! I have captured photos using home/indoor lighting, stage lighting, etc. NO MORE TWEAKING WHITE BALANCE IN PHOTOSHOP! It's dead-on every time.
I take this with me wherever I know there will be mixed lighting and use it before I photograph. You will be impressed as I am.

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The ExpoDisc white balance filter allows digital photographers to quickly and easily set an accurate custom white balance. Each ExpoDisc is individually assembled, calibrated and certified for neutrality in the visible spectrum, and for 18% light transmission. The ExpoDisc can be used on-the-fly to set a white balance in-camera when shooting JPEG, or later in post production when shooting RAW. Using an ExpoDisc to set a custom white balance results in consistently balanced color and eliminates many of the yellow, red and blue color casts commonly seen in digital photography. The ExpoDisc is easy to use. Setting a white balance with the ExpoDisc eliminates many of the inconsistencies and inconveniences associated with using white balance cards and targets, including unwieldy size, unwanted reflectivity, improper angling, and shadows. To set a white balance with an ExpoDisc, simply take a photograph of the light source (incident light) through the ExpoDisc, then follow your camera's instructions to set the camera's custom white balance.Because the ExpoDisc is calibrated for an 18% light transmission, you can also use it as a reference tool for manually determining proper exposure.The ExpoDisc is available in a variety of sizes to fit most popular lenses. The ExpoDisc does not thread into the lens; instead, its quick mount design can be pushed-on and popped-off to facilitate a quick white balance.

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