Black cats are really difficult to photograph well.
Unfortunately, the only non-black cat I've needed to photograph, Kai, only deigns to be anywhere near the house about once a month, and rarely when I've got a camera of some sort immediately to hand!
Talisker was entirely black, Zev is about 95% black, and my occasional charge, Bagel, is apparently black except for about eight hairs, which I've yet to spot!
With the mobile phone camera, it works OK if I turn the flash on, but that also needs an entirely stationary cat, which Bagel rarely is!