The Pentax SMC DA 645 25mm f/4 AL SDM AW is a wide angle lens designed for the Pentax 645D / 645Z. Key features include:
Wide Focal Length. With a focal length equivalent
to 19.5mm after sensor crop factor, the 25mm f/4 is great for landscape
photography. It offers minimum focus distance of 1.31’ that’s useful
for creating a false-perspective.
SDM AF Motor. The quiet SDM
autofocus motor provides fast and accurate autofocus operation. It
also features Pentax’s Quick-Shift autofocus system for shifting from
auto to manual focus for on-the-fly focus accuracy.
High Build Quality. The fully weather sealed lens
construction works with the 645D weather sealed body for maximum
reliability in the field. The SP lens coating protects the front
element from dust and oils, as well as making it easier to clean.
In-Line Filter. The built-in filter system allows
the use of 40.5mm drop-in filters to be used. We include a “Normal”
and CP filter with the rental.