Design and Features

color patch selection the most important element of any color reference target is the distribution, precision, and accuracy of the color of its color patches, and in this the dt ngt2 is unrivaled the 130 patches have been methodically selected to evenly cover the color space described by the glossy munsell book of color with special attention to the hyper critical papertone colors that are common in cultural heritage collections the center 24 patches replicate the familiar 24 patch pattern of consumer color checker charts finally, there are repeated black and white patches to help check for illumination uniformity and geometry because the selection of these colors is independent of the colors of the colorchecker sg and isa goldenthread fadgi 19264 target the dt ngt2 can be used https //heritage digitaltransitions com/the importance of evaluating color quality using an independent target/ each target can be delivered individually measured by a nist traceable spectrophotometer, providing complete assurance that you have the exact measured values of your specific target build quality and geometric precision consumer grade color reference targets are constructed of non durable materials such as cardboard and light plastic this has three practical ramifications first, the shape of such targets often become misshapen over time, for example bending into a u shape, especially if the humidity and temperature of the room are not entirely static second, even before/without such warping each color patch is far from precisely parallel to the working surface which can lead to measurement errors that are especially problematic when generating new color profiles third, they are not durable over time and tend to tear, warp, or bend with normal usage a target whose patches are not parallel to the camera will read erratically, especially if those patches are glossy as they are in the case of the color checker sg this can lead to very significant deviations, particularly in darker patches which will inappropriately pick up specular reflections of the light sources such issues are immediately visually obvious when the chart is significantly bent or warped with time, but can even cause issues on a brand new seemingly “flat” consumer grade target due to the poor quality of construction and imprecise seating of the patches the dt ngt2 is manufactured from a solid piece of aluminum milled to 0 001” (40μm) precision; this totally prevents warping from humidity and temperature variation, and makes the target exceptionally durable to normal handling each and every patch is individually laid, individually measured, and individually calibrated to be exactly parallel to the metal backing finally, all dt ngt2 targets are delivered in a foam lined latching case ideal for long term storage when not in use, further bolstering its longevity and useful life while an dt ngt2 may be initially more expensive, its incredible physical durability, along with the cleanability of its color patches make it a far better long term investment superficial scratches at delivery the digital transitions next generation target v2 is built to be a precise and robust target designed to withstand daily use and accidental grime to ensure these standards each target is hand tested as a result of testing there may be superficial scratches that become visible under direct specular light these superficial scratches should not be visible from a camera under normal illumination (30 45º illumination, camera directly overhead) and do not affect the accuracy of the target digital transitions stands behind its products if there are any concerns over more distinct marks on a dt ngt v2, dt will be happy to review or replace as needed serial number system the serial number format is dt ar ngt2 \[yyyy]### that is, the first four numbers of the last numerical block represent the year of manufacturing