b-w technik

Low Cost Darkroom Techniques


Enlarger photometer details .....

Short Form Specification

 Sensitivity  Range x1  0.3 V/lx
   Range x10  3 V/lx
 Output Voltage  maximum  9.5 V
 Offset voltage  typically .05 mV  
 Dynamic Range  greater than 4 decades  
 Dimensions  62 x 90 x 15  mm



For film testing, it comes complete with a calibrated test target,
white card and black card ,
spreadsheets, connecting cable, sample data sheets and battery.


The photometer is normally connected to a low cost 1999 display
digital multimeter which is not supplied.

View the full specification here.

Download the 7 step test chart spreadsheet below. The .ods version
requires open software LibreOffice to be installed.

7 Step Test Chart Spreadsheet, ods version 1.0

7 Step Test Chart Spreadsheet, xlsx version 1.0