If you are taking a photograph of something flat, depth of field doesn”t matter, so it doesn”t matter what aperture you use – right? Wrong! Lenses all have a “sweet spot” – the aperture at which they produce the sharpest images. This is usually about 2 stops smaller than the maximum aperture of the lens. Hence for a F4 lens, select F8 for the sharpest images.
http://www.matmackenzie.co.uk/wp-content/uploads/2011/03/vdub.jpg 1951 2200 Mat Mackenzie http://www.matmackenzie.co.uk/wp-content/uploads/2013/04/creative-technologies-logo..png Mat Mackenzie2011-03-03 14:21:512013-07-03 14:41:07Lens Sweet Spot