Precautions On Close-Distance Scale - Pentax smc -DA Operating Manual

Close-distance scale

Precautions on close-distance scale

(For DA 16-45mm f/4ED AL, DA 18-55mm f/3.5-5.6 AL II, DA18-55mm f/3.5-5.6 AL)
In the close-distance scale range (the orange area on the distance scale), when shooting at
the maximum aperture, image quality deterioration in the picture corners may result
because of the optical characteristics of the lens.
When taking a picture in this range, we recommend that you use a smaller aperture,
stopping down from full aperture.
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