Beskrivelse
Rez Checker Target GLOSS med NIST Traceable Certificate.This is aprofessional grade miniaturized target for assessing color, tone, and whitebalance in addition to measuring resolution and Spatial Frequency Response(SFR) or Modulation Transfer Function ( MTF) for digital cameras/scanners usingedge gradient analysis of ISO 12233 and ISO 16067. All target patches are madein cooperation with Munsell Color Services from the same pigmented color paintsas the GretagMacbeth™ ColorChecker®. At center are 12 spectrally neutral graypatches for assessing correct exposure and white balance. (These are NOTink-jet, photographic, or electro-photographic generated colorants)The slanted edges can be used toreliably measure SFR or MTF out to 3000 dot-per-inch or 60 cy/mm. with theappropriate software. Five line visual hyperbolic wedges are also included toaid in visual assessment of limiting resolution to 850 dpi.The patches are mounted on aircraftgrade anodized aluminum and are set below the top surface to help protect fromdamage. Patch sizes are 1/4” x 1/4”. The overall size is 1-7/8” high x 1-5/8”wide x 0.060” thick and are available with either gloss or matte center graypatches. All colored patches on the perimeter are matte finish. Because thesetargets are hand cut and assembled, very minor patch mis-alignments may occur.They do not affect the target’s utility.Gloss Gray PatchesGloss gray patches have an extended dynamic range (density ~ 2.4) and aresuitable for measuring camera imager noise. Specular reflections from the glosssurface may occur for illumination geometries less than 45°/0° when usedwithout crossed polarizers.Matte Gray PatchesMatte gray patches have a lower dynamic range (density ~ 1.6) but are moresuited to narrow illumination geometries such as those used in endoscopicimaging or with direct on-camera flash units. Because the matte surface can beinterpreted as imager noise, we do not recommend using matte gray patch targetsfor evaluating imager noise in high magnification applications.Matte with AR Coated GlassThis matte set is available with AR coated optical grade quartz cover glass andare useful in harsh, wet imaging applications. Each has been tested to be waterand alcohol proof in submersible environments.NIST traceable calibrations andcertificate are available for the color and gray patches of the Micro ColorColorGauge target at an additional cost.
