Set the main light first...
OK, I know its not the usual way of doing things. However, my philosophy is that since we are photographing light as it is reflected off a subject matter the quality of that light is the most important element in the still life.
After setting the main light then arrange your still life within the compositional framework of what you see and feel. Then and only then set up the camera and fine tune your image.
While a foldable view cameras is easier to work with when photographing landscape, portraits and nudes it is not the ideal type of camera for close up still life photography.
For table top still life there is only one camera made if you want to be in complete control, without fumbling and leaving things to chance.
It is a Sinar P (or P2).
Finally, if you shoot very tight close ups and want utmost sharpness you either need to have a solid concrete floor in your studio (when using hot lights) or use high powered electronic flash.