This is a ten frame camera merge. I expected a silky texture to the surface, but this is interesting . . . I think. It does make apparent the bulges and sags that are there but which are less obvious in real life or in a single frame image. The sooty quality of the three-quarter tones (zones 2-3-4) might be an artifact of the color translation to gray values. I did very little to this image, and none of the usual painting techniques other than to burn in the edges a little. No polarizer or other filter was used in the capture.

I did use a Hasselblad Zeiss 150mm ƒ2.8 Sonnar FE lens and Mirex tilt/shift adapter with the tilt employed. Very sharp, but the depth of field at ƒ5.6 is so shallow tilted like this that the top of the rock is out of focus – it is perhaps 10 inches above the water!

150mm Zeiss Sonnar FE, Mirex T/S adapter, Nikon 800e, Lr4, Ps CS6.