Tamron 28-200mm F2.8-5.6 Di III RXD is an Auto Focus (AF)
SuperZoom lens with 35mm FF max sensor coverage and it is designed to be used with Sony E mount cameras.
Lens Mount
Tamron 28-200mm F2.8-5.6 Di III RXD is compatible with cameras that have
Sony E lens mount. Some of the latest released cameras with Sony E lens mount are
Sony ZV-E10,
Sony A1 and
Sony A7c.
Sensor Coverage
Max sensor coverage of Tamron 28-200mm F2.8-5.6 Di III RXD is
35mm FF.
Focal Range
Tamron 28-200mm F2.8-5.6 Di III RXD has a focal range of 28-200mm and 7.1X zoom ratio. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 42 - 300mm.
Body Colour
Tamron 28-200mm F2.8-5.6 Di III RXD is available in Black color.
Zoom Method
Tamron 28-200mm F2.8-5.6 Di III RXD 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.
Zoom Lock
Tamron 28-200mm F2.8-5.6 Di III RXD has a
Zoom lock feature which eliminates Zoom creep where focal length of the lens changes with gravity when it's held downwards or upwards.
Maximum Magnification Ratio
Tamron 28-200mm F2.8-5.6 Di III RXD has a Max Magnification Ratio of
0.32x and has a minimum focusing distance of
0.19m.
Aperture
Tamron 28-200mm F2.8-5.6 Di III RXD is a variable aperture lens with a max aperture of f2.8 and a minimum aperture of f16 at 28mm, and a max aperture of f5.6 and minimum aperture of f32 at 200mm .
Optical Formula
Tamron 28-200mm F2.8-5.6 Di III RXD's optical formula consists of 18 elements in 14 groups. Following special elements are used in this design:
- Aspherical
- hybrid aspherical
- extra-low dispersion
- low-dispersion elements
- BBAR coating