Color Charts​

ColorGauge + Rez Checker

Use the miniaturized ColorGauge and Rez Checker for close range measurements of color,
tone, exposure error, white balance and noise. These charts are of particular interest for
medical imaging, especially endoscopes.

At center are 12 spectrally neutral gray patches to assess correct exposure and white balance
in close­up or macro photography applications.

ColorGauge Charts

Description

Color pigments match the X­RiteTM ColorChecker®. The patches are mounted on aircraft grade anodized aluminum and are set below the top surface to help protect from damage.

Available sizes:

Chart Type Height Width Thickness
Pico 0.3750" (9.525 mm) 0.4375" (11.1125 mm) 0.06" (1.524 mm)
Nano 0.6875" (17.4625 mm) 0.8125" (20.6375 mm) 0.06" (1.524 mm)
Micro 1.3750" (34.925 mm) 1.6250 (41.275 mm) 0.06" (1.524 mm)

Available Substrates:

  • 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 have a lower dynamic range (density ~ 1.6) but are more suited to narrow
    illumination geometries such as those used in endoscopic imaging or direct on­camera 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.

Additional Information:


Rez Checker Charts​

Description

The Rez Checker’s high precision reflective printing process enables precise resolution
measurements. Fine detail is 13x sharper than in Inkjet prints and twice as sharp as black and
white film.

The slanted edges can be used to reliably measure SFR or MTF out to 3000 dots­per­inch or 60 cy/mm with the appropriate software. Five, line visual hyperbolic wedges are also included to
aid in the 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.

Available Sizes: ​​Height: 1­7/8” Width: 1­5/8” Thickness: 0.060” (47.625 x 41.275 x 1.524 mm)

Available Substrates:

  • 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 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 on­camera
    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.