Stouffer WBZ9, 9 step, White Balance Zone System Chart

Stouffer WBZ9, White balance Zone System Chart, Zone I to IX

9 steps, Zone I to IX

Step-Wedge WBZ9-Data

9 steps, front side Zone I, IV and IX extra big, reverse side 18% grey, size 7 x 9" - 178 x 228 mm

Following the concept of the RZ9 Stouffer has designed the WBZ9 White Balance Zone System Chart to help achieve the proper white balance for any lighting situation. Side one represents Zones I, V, and IX in three large steps of reflected density. Use this side to set the custom white balance of a digital camera.
There is also a 9 step Zone System gray scale at the edge of the chart to help visualize zones I through IX.
As an added bonus there is a full sized Zone V (18% gray) gray card on the opposite side.
On location or in the studio a photographer can photograph the White Balance Zone System Chart, filling the frame with the three zones, and metering for Zone V.

This helpful chart offers a well balanced exposure of highlight, mid-tone, and shadow to use as a reference point for custom white balancing.A photographer can also capture the WBZ9 at the beginning of a shoot or as often as needed for different lighting conditions during the shoot.
The WBZ9 can then be used as a curve to adjust each image from any series of photographs with the same lighting characteristics.

RoHS-Compatibility:
Products manufactured and sold by Stouffer Industries are RoHS compliant. All step wedges, step tablets, gray scales, and any other photosensitive quality control device made contain no or less than agreed levels of lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyl (PBB) and polybrominated diphenyl ether (PBDE) flame retardants.

Longlivety:
Stouffer Step Tablets and Gray Scales are made under controlled conditions to meet or exceed the requirements for archival permanence following procedures recommended by the manufacturers of the materials. Archival permanence is usually defined up to 10 years or more. Studies at the National Institute of Science and Technology have shown that the densities of this kind of step tablet will remain stable for at least four years when handled and stored with care.

The primary causes of degradation are use, followed by ( in no particular order) heat, humidity, fingerprints, splashes including spittle, chemical fumes and vapors, attempts to clean the emulsion with anything other than a soft camelhair brush, and abuse.A quality control device that is handled 40 times a day will degrade faster than one that is handled once a week. The user should set a routine to determine the frequency of replacement based upon factors occurring in-house and the foregoing discussion.

We recommend to change the step wedge after 3-6 months and immediately at visual damage

Calibration:
This step wedge is also availabe in calibrated version. Lead time about 4 weeks