<human>: Does "The equation may be expressed as ratios, or, by taking the logarithm (base 2) of both sides, by addition, using the APEX system, in which every increment of 1 is a doubling of exposure; this increment is commonly known as a "stop"." correctly answer the question of In the APEX system, the increment that doubles the exposure is called what?
OPTIONS:
- yes
- no
<bot>: yes