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English
Cut off
Tap ‘Filter’ and then ‘λc Cut-off ’ to select your required cut-off option. 
Tap the back arrow icon to accept and go back to the previous menu. 
Default value is ‘0.80mm’.
λc settings
Tap ‘λc Settings’ to set the required calibration evaluation length and 
adjust the λc Cut-off if necessary. Set the calibration length by tapping 
the box next to ‘N’ (for the number of cut-offs). Change this number 
using the arrows to achieve the desired evaluation length. Tap the back 
arrow icon to accept and go back to the previous menu.