Just a quick colour popping experiment with Ping, our Siamese, who has very striking blue eyes:

1/100sec at f3.2, ISO 320 at 50mm

I would have preferred to have taken the shot a little further from his face as the narrow depth of field is quite extreme – about 45cm, which is the minimum for my 50mm lens – with his nose out of focus. But I was trying to keep him amused and with his head pointing more or less at the light source. It’s also an indoor shot, so this was as narrow an aperture as I could manage. I could probably have afforded to push the ISO a bit higher for a black and white shot.

I’ve finished it off with a little bit of dodging and burning, and finally a reduction in levels just under the chin.