Calcium imaging demonstrates colocalization of calcium influx and extrusion in fly photoreceptors -- Data Supplement - Supplemental Data -- Proceedings of the National Academy of Sciences

Supplementary material for Oberwinkler and Stavenga (2000) Proc. Natl. Acad. Sci. USA 97 (15), 8578-8583.

GIF Image

Fig. 6. Optical situation for imaging the distal cross section of a photoreceptor cell in vivo. The optical function of the corneal facet lens is eliminated by using a water-immersion objective and placing a drop of water between the cornea and the objective [Kirschfeld, K. & Franceschini, N. (1969) Kybernetik 6, 13-22]. This allows focusing through the cornea and the crystalline cone onto the distal part of the photoreceptor cells, one of which has been filled with a fluorescent calcium indicator (green).