Pentax 12-24mm F4.0 ED AL is an Auto Focus (AF)
Wideangle Zoom lens with APS-C / DX max sensor coverage and it is designed to be used with Pentax KAF mount cameras.
Lenses in Pentax KAF Mount with Same Focal and Aperture Range
Lens Mount
Pentax 12-24mm F4.0 ED AL is compatible with cameras that have
Pentax KAF lens mount. Some of the latest released cameras with Pentax KAF lens mount are
Pentax K-3 III,
Pentax KP and
Pentax K-70.
Sensor Coverage
Max sensor coverage of Pentax 12-24mm F4.0 ED AL is
APS-C / DX.
Focal Range
Pentax 12-24mm F4.0 ED AL has a focal range of 12-24mm and 2.0X zoom ratio.
Optical Image Stabilization
Pentax 12-24mm F4.0 ED AL doesn't have an optical image stabilization system so the only option to stabilize the image taken with this lens is to mount on a camera body with IBIS (sensor based In-body image stabilization).
Body Colour
Pentax 12-24mm F4.0 ED AL is available in Black color.
Zoom Method
Pentax 12-24mm F4.0 ED AL features
Rotary (extending) zoom method where the length of the lens changes as you zoom in or out. This makes it possible to design the lens with a smaller minimum length ( generally when it is zoomed out) compared to internal zoom lenses. The disadvantages of this design are being harder to seal against dust and moisture, weight balance shifting while zooming and zoom creep in certain lenses.
Maximum Magnification Ratio
Pentax 12-24mm F4.0 ED AL has a Max Magnification Ratio of
0.12x and has a minimum focusing distance of
0.3m.
Aperture
Pentax 12-24mm F4.0 ED AL is a fixed aperture lens with a constant max aperture of f4 from 12mm all the way to the 24mm .
Optical Formula
Pentax 12-24mm F4.0 ED AL's optical formula consists of 13 elements in 11 groups.