Anterior Median and Anterior Lateral Eyes of a Phidippus princeps Jumping Spider
Crop of a single image taken at ~5:1 magnification with the 28mm reversed on a few extension tubes. (I feel bad about cropping the photo so much, but the focus was perfect. Also, the composition was poor and it was just generally an otherwise worthless photo, so it was the perfect canidate for an extreme crop.)
I have posted this species a few times now, but this is a different spider than the other one. I found this one about 200 feet away from the other, near a creek. I got him/her to hop onto an old persimmon I was holding, which I held in front of a bright yellow leaf to provide a nice background. So the texture reflected in the lower portion of the eyes is the surface of the persimmon.
For more information on jumping spider eyes and vision, see the tolweb page here: