Sharpness centrally is excellent from T1.9 to T11 and ... gets through a lens and reaches the sensor. The blue column represents readings from the centre of the picture frame at the various ...

Sharpness centrally is good from T1.9 to T2.8 ... are straight lines near the edge of the frame. Bokeh is not usually the major feature of wide-angle lenses as they are often used at small ...