Japanese website Photosku has published the specs and size comparison of new announced Tamron 28-75mm f/2.8 Di III RXD vs Sony FE 24-70mm f/2.8 GM lens.
This is the Tamron’s first ever lens for the Sony full-frame E-mount system. Tamron claims the lens will offer excellent optical performance and high-quality bokeh. An ‘RXD’ stepping motor autofocus unit provides quiet operation for video applications, and the whole thing will be moisture-resistant.
Photosku published the specs of the Tamron 28-75mm f/2.8 Di III RXD (B&H) compared to the Sony FE 24-70mm f/2.8 GM (Amazon) lens. Tamron says this lens is designed to compete against the Sony equivalent.
Tamron 28-75mm f/2.8 Di III RXD vs Sony FE 24-70mm f/2.8 GM
Check out the size and specs comprison of the Tamron 28-75mm f/2.8 Di III RXD vs Sony FE 24-70mm f/2.8 GM lenses.
|product name||Tamron 28-75 mm F / 2.8 Di III RXD (Model A 036)||Sony FE 24 – 70 mm F 2.8 GM (SEL 2470 GM)|
|Release date||To be determined||April 28, 2016|
|price||To be determined||About 230,000 yen|
|series||Di series||G Master Series|
|Lens type||Mirror less|
|Focal length||28 – 75 mm||24 to 70 mm|
|Focal length on APS-C machine (converted to 1.5 times)||42 – 112.5 mm||36 – 105 mm|
|AF motor||Stepping motor RXD (Rapid eXTRA-silent stepping Drive)||Direct drive SSM (DDSSM)|
|Manual focus||○ (Direct manual focus DMF compatible)||○|
|Aperture||F 2.8||F 2.8 to 22|
|Number of diaphragm blades||Unpublished||9 sheets|
|Lens configuration||Unpublished||13 groups 18 sheets|
|Lens configuration||Unpublished||One very high aspherical XA (extreme aspherical) lens, two aspheric lenses, one ED (special low dispersion) glass, one super ED glass|
|coating||Unpublished||Nano AR coating|
|Shortest shooting distance||Wide end: 0.19 m, Tele end: 0.39 m||0.38 m|
|Maximum shooting magnification||Unpublished||0.24 times|
|Angle of view||Unpublished||84 – 34 °|
|Filter size||Unpublished||82 mm|
|Hooded||Unpublished||Floral bayonet type ALC-SH 141|
|Lens button||Unpublished||Focus hold button, focus mode switch (AF / MF selector switch), zoom lock switch|
|Dustproof and drip-proof structure||Simple drip-proof structure, antifouling coat||Consideration designed|
|Maximum diameter||Unpublished||87.6 mm|
|length||117.8 mm||136 mm|
|weight||550 g||886 g|