Fig. 6.

Registered average of up to 245 confocal photoreceptor images of N2 at the (a) fovea, (b) $3^{\circ }$ TR and (c) $6^{\circ }$ TR under vertical illumimation and (e)-(g) horizontal illumination. The orange lines indicate the orientation of the line illumination. (d) and (h) show the $6^{\circ }$ TR images from (c) and (g) with the 360 cone centers marked with red spots for direct comparison. The scale bar is 20 $\mu$ m.