I've been playing around with straight-from-camera B&W JPEG in the last day or two. Here's one of my test shots... Boo Boo (our rescue cat), on his favourite "re-use, recycle" plastic bag, chaise longue behind him, and his current favourite Amazon cardboard box just off to the right
He had a rough time recently... his last remaining teeth had to be extracted, and an ominous lump on his side removed - which, thankfully, turned out to be merely a sweat gland that had blocked up and turned fibrous. Still, he's doing well now, and fully recovered for Christmas
Photo taken with my old K-5 and FA50/1.4 lens...