Rez Checker Target GLOSS med NIST Traceable Certificate.
This is a
professional grade miniaturized target for assessing color, tone, and white
balance in addition to measuring resolution and Spatial Frequency Response
(SFR) or Modulation Transfer Function ( MTF) for digital cameras/scanners using
edge gradient analysis of ISO 12233 and ISO 16067. All target patches are made
in cooperation with Munsell Color Services from the same pigmented color paints
as the GretagMacbeth™ ColorChecker®. At center are 12 spectrally neutral gray
patches for assessing correct exposure and white balance. (These are NOT
ink-jet, photographic, or electro-photographic generated colorants)
The slanted edges can be used to
reliably measure SFR or MTF out to 3000 dot-per-inch or 60 cy/mm. with the
appropriate software. Five line visual hyperbolic wedges are also included to
aid in visual assessment of limiting resolution to 850 dpi.
The patches are mounted on aircraft
grade anodized aluminum and are set below the top surface to help protect from
damage. 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 gray
patches. All colored patches on the perimeter are matte finish. Because these
targets are hand cut and assembled, very minor patch mis-alignments may occur.
They do not affect the target’s utility.
Gloss Gray Patches
Gloss gray patches have an extended dynamic range (density ~ 2.4) and are
suitable for measuring camera imager noise. Specular reflections from the gloss
surface may occur for illumination geometries less than 45°/0° when used
without crossed polarizers.
Matte Gray Patches
Matte gray patches have a lower dynamic range (density ~ 1.6) but are more
suited to narrow illumination geometries such as those used in endoscopic
imaging or with direct on-camera flash units. Because the matte surface can be
interpreted as imager noise, we do not recommend using matte gray patch targets
for evaluating imager noise in high magnification applications.
Matte with AR Coated Glass
This matte set is available with AR coated optical grade quartz cover glass and
are useful in harsh, wet imaging applications. Each has been tested to be water
and alcohol proof in submersible environments.
NIST traceable calibrations and
certificate are available for the color and gray patches of the Micro Color
ColorGauge target at an additional cost.