Tamron 70-200mm f2.8 LD is an Auto Focus (AF)
Telephoto Zoom lens with 35mm FF 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
Tamron 70-200mm f2.8 LD 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 K-1 II and
Pentax KP.
Sensor Coverage
Max sensor coverage of Tamron 70-200mm f2.8 LD is
35mm FF.
Focal Range
Tamron 70-200mm f2.8 LD has a focal range of 70-200mm and 2.9X zoom ratio. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 105 - 300mm.
Optical Image Stabilization
Tamron 70-200mm f2.8 LD 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
Tamron 70-200mm f2.8 LD is available in Black color.
Zoom Method
Tamron 70-200mm f2.8 LD features
Rotary (internal) zoom method where the length of the lens doesn't change while you are zooming in or out. Even though this design has a size disadvantage in general compare to extending designs, it has the benefits of better sealing against dust and moisture, no zoom creep and no weight balance shift while zooming.
Maximum Magnification Ratio
Tamron 70-200mm f2.8 LD has a Max Magnification Ratio of
0.32x and has a minimum focusing distance of
0.95m.
Aperture
Tamron 70-200mm f2.8 LD is a fixed aperture lens with a constant max aperture of f2.8 from 70mm all the way to the 200mm .
Optical Formula
Tamron 70-200mm f2.8 LD's optical formula consists of 19 elements in 16 groups.