getAperture
getApertureNew

• There's no way to get aperture, just set. So 'gets' for 'sets'...
• Example: setAperture 0.1; waitUntil{sleep 0.1; setAperture (getAperture + 0.01); getAperture >= 0.5};
• Example: setApertureNew [0.01, 0.02, 0.03, 0.01]; waitUntil{sleep 0.1; setApertureNew [0.01, 0.02, 0.03, (getApertureNew select 3)+0.01]; getApertureNew select 3 >= 0.1};