Custom White Balance

A photo of Quintin.
WB: Flourescent
Shutter Speed 1/30 sec.
Aperture f/4.5
ISO 400
Focal Length 40mm

My binder to set the white balance.
WB: Fourescent
1/45 sec.
f/4.5
ISO 400
40 mm

After setting the white balance. The details and light are a lot
better than the approximated Flourescent White Balance.
WB: Custom
1/20 sec.
f/4.5
ISO 400
40 mm