Xograph Digit-X Portable Densitometer

Xograph Digit-X Portable Densitometer

Lightweight, Battery Powered Densitometer

The Digit-X is on backorder. 


The Digit-X Densitometer is a unique, hand held transmission densitometer, combining ease of use with high accuracy and repeatability. The fine fiber-optic probe allows small areas of film to be measured accurately with readings being displayed on the large clear LCD panel to 2 decimal places. Weighing in at just 6 oz. (175g) makes it easy to carry from place to place. Battery usage is minimal and a low battery warning indicator is provided on the digital display.

Digit-X can reliably read film densities up to a maximum of 4.0D. Simply place your QA film strip on a uniform light source, press the fiber optic tip of Digit-X evenly against the region of the film strip to be measured and push gently forwards. The film density will be shown on the LED display. A conveniently placed zero button resets the display between readings.



The Digit-X is available in two different versions to accommodate the changes in technology of viewing boxes being encountered in the field.

  • Fluorescent Tube Type Film Viewers
  • LED Tube Type Film Viewers

The LED version of the Digit-x has been designed specifically to cope with the high brightness levels produced by LED viewers and to accommodate the high frequency of the light output.

NOTE: High brightness fluorescent viewers (85,000 cd/m2 and brighter) would be best suited to use the LED version of the Digit-X.

Technical Specifications

Digit-X Specifications

Light Box Luminance Range 20,000 Cd/mto 200,000 Cd/m2
Density Range 0.00 - 4.00 OD
Aperature 0.12" (3mm)
Resolution 0.01
Accuracy ±0.05
Repeatability ±0.02
Display 3 Digit 0.5" (12.5mm) LCD
Zero Drift Less than ±0.005 per minute
Sensor Silicon photodiode with polymer optical fibers
Response Time

Fluorescent: 0.2 seconds

LED: 0.8 seconds

Power Supply PP3 battery or equivalent Alkaline MN1604 recommended
Battery Life Alkaline - 2,500 hours

Kit Includes

  • Digit-X Densitometer
  • Battery
  • Calibration Certificate
  • User Manual
  • Sturdy, Portable Carrying Case


  • AGFA Density Film Strip (PN RT-AGFA-3UEPB)
    • 15 Steps
    • Range: less than 0.20 to great than 4.0
  • BAM Density Step Tablet (PN RT-KT-13-40205)
    • 15 Steps
    • Range: less than 0.20 to great than 5.0

Density Step Tablets

Description Part # Saved Price Select Option Add to
Digit-X Handheld Densitometer Kit with Carrying Case and 9 volt Battery, for use with LED type Film Viewers RT-XO-QUOOD10 Request Pricing
Digit-X Handheld Densitomer Kit with Carrying Case and 9 volt Battery, for use with Fluorescent type Film Viewers RT-XO-QUXOD02-1 Request Pricing
AGFA Density Film Strip, 15-step, Certified RT-AGFA-3UEPB $162.00
Kowotest BAM 15 Step Density Tablet, Calibrated and Traceable to NIST, > 0.2 to > 5.0 D RT-KT-13-40205 $450.00