The baLens is a snap-on lens cap with a removable translucent dome in the center. By simply placing the cap on your lens, pointing the camera at the light source and doing a manual white balance, superior color correction is easily achieved under any lighting conditions. Simple. Smart. Functional. Change the way your camera sees color. Go from orange, blue and green-tinted photos to beautifully captured color by setting a custom white balance with the baLens Cap. The patent-pending baLens White Balance Lens Cap system comes with interchangeable neutral and warm filters. So no matter how challenging the lighting, with a baLens Cap you can get better colors right out of the bag. Save time, energy and money by eliminating the need to adjust an image's color balance in your photo editing software. baLens allows you to concentrate on the creative aspects of your photography. The baLens is simple to use: mount the baLens Lens Cap on the lens, take a reference exposure of the light falling on your intended subject with the camera set in manual focus/auto exposure mode. The baLens Lens Cap will allow the setting of a custom white balance based on the actual color temperature of the light source. The dome-shaped filter allows for very accurate measurement of color temperature under mixed light source conditions. Using the camera’s menu functions, locate the custom white balance setting and apply the reading. A warm dome is included for when you wish to achieve natural skin tones in portraits or an overall warmer effect in your photos. BRNO implements very strict quality controls. For example, once the formula for the center filter pieces are mixed, a pre-production sample is taken and measured against a control sample on a photo spectrometer and densitometer. Once this is approved, then samples are taken from production pieces during various times during output and retested, providing you a product that meets the highest of standards.