Figure 10 of
Stark, Mol Vis 2004;
Figure 10. R1-6 GFP (standard fluorescence microscope) and rhodopsin conversions (light microscopy)
Deep pseudopupils of typical white eyed fly from the cross that gives GFP expression in R1-6. Regular (vitamin A replete) food (top row). Vitamin A deprived (middle row). Yeast food (bottom row). Fluorescence excited by 480 nm light (left), transmission of 579 nm light (middle), and transmission of 579 nm light with 480 nm actinic stimulation (right).