How do I minimize vignetting?
A. Please see the previous question for a discussion of this effect. The typical procedure when using a digital camera with built-in lenses is to zoom the camera lens out to full wide-angle position, and then slowly zoom back in until the vignetting effect is minimized, or you achieve the desired field-of-view of your microscopic specimen. Often as you zoom in the vignetting will be reduced to a certain point, but then will not reduce any further. At that point you should stop.
