Kodak HR 500 Owner Manual

Determining the Right Trigger Point

Determining the Right Trigger Point

Using the Long Roll Accessory
D-36
August 2001
Determining the Right Trigger Point 
1. On the Film Controls window, click Position > to advance the film and 
determine the “average” low number on the right LED. 
2. Subtract the average low number from the highest number you recorded in 
step 1 under Recording the Highest Numbers on the LEDs.
3. Divide the result of step 2 by 4.
4. Add the result of step 3 to the average low number determined in 
step 1.
The result is the right trigger point. Record this number.
Below are examples of determining trigger points. Round to the nearest whole 
number. 
Average Low 
Number
Starting High 
Number
Difference 
Between High 
Number and Low 
Number
Difference 
Divided by 4
Trigger 
Number
120
800
800 - 120 = 680
680/4 = 170
170 + 120 = 290
98
814
814 - 98 = 716
716/4 = 179
179 + 98 = 277