There is a simple technique to recover detail or make it appear that you have reflected light onto the dark side of the subject where you have exaggerated contrast like this. In GIMP (which is free to download and use) or photoshop if you have it you make a duplicate layer, invert the colours, desaturate it, blur it (gaussian blur is the normal choice) and then change the layer to overlay (or whatever the equivalent is in photoshop). This effectively lightens the dark areas. This might help improve the picture, you should give it a try.
Samsung NX5 14.2MP (MILC or CSC) with 18-55mm kit lens. +1, +2, +3 and +10 close up lens. 50-200mm zoom lens. Sigma APO DG 70-300mm (pentax mount with adapter)
Olympus Mju 790SW Tough P+S
Husband: "Depth of field calculator? Does that tell you how far down your potatoes are?"