Found this chap (?) in my garden hiding under a pile of old logs and leaves. He posed happily for me until I got too close at which point he scuttled off under some foliage.
I was using that same 105mm macro lens plus the 1.4x teleconvereter on my D800, and I’m really pleased with the result.
But look how narrow the depth of focus is! And this was shot at f/14 ( 1/60sec with the ISO racked up to 1000 again ). I also used a touch of fill in flash just to lift the image.