Manufacturer | Lightdow |
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Item model number | LD-FB131 |
Product Dimensions | 12.95 x 12.95 x 2.03 cm; 68 g |
ASIN | B00HT9MA1W |
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Lightdow 12 x 12 Inch (30 x 30 cm) White Balance 18% Gray Reference Reflector Grey Card with Carry Bag [Folded Version]
Colour | Black,grey |
Brand | lightdow |
Style | Square, Two-toned Black and Grey Reflector |
Product Dimensions | 13D x 13W x 2H Centimetres |
Material | nylon |
Light source type | LED, Tungsten/Halogen, Fluorescent, Flash |
Included components | Reflector |
Maximum height | 3E+1 Centimeters |
UPC | 616983848487 |
About this item
- Gray side: Reflectance 17.8%; Density 0.74
- for Max. deviation of reflectance: 2%
- for Max. error in exposure measurements: 1/8 of F-stop
- This handy double sided pop up 18% grey/white card simplifies the complex technical issues surrounding exposure and color correction when working in different lighting conditions. It provides a major benefit when working under pressure at events such as weddings or fashion shows.
- Backed with Lightdow 90-Day Hassle Free Return & Replacement Warranty for Quality-Related Issue.
Product information
Technical Details
Additional Information
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Product details
- Is discontinued by manufacturer : No
- Product Dimensions : 12.95 x 12.95 x 2.03 cm; 68 g
- Date First Available : Sept. 5 2014
- Manufacturer : Lightdow
- ASIN : B00HT9MA1W
- Item model number : LD-FB131
- 鶹 Rank: #5,928 in Electronics (See Top 100 in Electronics)
- Customer Reviews:
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From the brand

LIGHTDOW
We endeavor to manufacture cost-effective products to give every customer a satisfying shopping experience
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Lightdow lens pouch case is made of 5mm thick cushioning material with waterproof, dustproof, moisture-proof and shock-absorbing functions, which can keep the lens completely dry and maximize the safety of the lens when it falls to the ground.
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Camera Lens Bag
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What are the four sizes in a group?
S size: 7.9*10 cm
M size: 8.9*15 cm
L size: 10*17.8 cm
XL size: 11*23 cm
What's it made of?
Waterproof Nylon, High Quality PU material, protect your lens against moisture, sand, dust, accidental bumps and scratches, perfect item for photographers who love traveling.
Can I hang it on my bag?
Yes,the camera lens bag comes with a carabiner on the outside, so you can attach it to your bag or hang it on the waistband of your pants.
Product Description

Ready to take better photos?
The quik balance collapsible 12" gray panel from Lightdow is a convenient tool to ensure that your photos and videos are accurately exposed and color balanced.
- One side of the panel is 18% gray, while the other side is neutral white.
- By taking a photo or video of either the white or gray side of the panel in the same lighting conditions as your final image, you can accurately adjust exposure and color balance in camera, or in your post-production software.

White Balance Card for Digital Photography
- washable
- collapsible
- accurate
Specifications:
PU material
- Gray side: Reflectance 17.8%; Density 0.74
- for Max. deviation of reflectance: 2%
- for Max. error in exposure measurements: 1/8 of F-stop
Features:
- The gray side of the panel has a target in the center so that your lens can find a focus point.
- The panel collapses to just 1/3 of its full size, allowing it to fit in most camera bags.
- A zippered storage sleeve is included to keep the panel collapsed during transport.

White Card
White Card is basically used to define the white balance, which is often replaced by a sheet of white paper due to its easy access to materials nature. The correct exposure of the white card makes the definition of the white balance of the picture noise is so small that very conducive to define. However, the correct exposure of white card compared to gray card to be more difficult, - generally we recommend to use gray card to define the white balance.
Why gray card, white card can be used to define the white balance?
Because both are R = G = B. That is, as long as the card is R = G = B color, it can be used to define white balance, only in this way, they can be separated from the white balance information carried.

18° Gray Card and Focus
Gray Card, - generally refers to 18% reflectance gray card. Since the camera exposure is based on 18% reflectance, we use the gray card metering to get the correct exposure. Another use of the gray card is to define the white balance. Because of the correct exposure values mentioned above, the gray card carries the correct white balance information.
How to Fix WB In-Camera With a Grey Card

How to Fix WB In-Camera With a Grey Card
The exact way of setting the white balance in camera with a grey card might differ from below, depending on the manufacturers.
Check your camera manual or search on Google about custom white balance and specify your camera’s model.
- Place the grey card in the scene;
- Set the camera to manual focus;
- Frame the shot so that the grey card fills the whole frame. Don’t worry about the sharpness of the image. It will work fine even if it’s out of focus;
- Check exposure and adjust if you need to;
- Press the WB button while turning the main dial until you select PRE.
- Release the button. Press and hold it again until the letters PRE start flashing.
- Take the photo of the grey card before PRE stops flashing.
- That´s all! The camera has just created a WB preset based on the photo you just took.
In other camera models, you might need to take a photo of the grey card and then select it in the Custom White Balance as the reference image.