|SONNAR||Optical design invented by Ludwig Bertele in 1929. Lenses that use this optical design are lightweight and of high speed. The Sonnar designation comes from German word Sonne which means "sun" and emphasized the lens speed of 2.0 (that was extraordinary rare in those days). In comparison with Planar the Sonnar design has more optical aberrations but the contrast and flare control is much better. In comparison with older Tessar design it has less chromatic aberrations and the lens speed is higher. Due to short working distance the Sonnar design could not be used in wide angle lenses for SLR cameras. That's why Sonnar lenses for SLR cameras are generally available with focal lengths of 135mm or more.|
|T*||The multi-layer coating is applied to the surface of lens elements. It boosts light transmission, ensures sharp and high contrast images, minimizes ghosting and flares.|
|ZA||Carl Zeiss lens designed for Sony digital cameras.|
|SSM||The lens is equipped with ultrasonic motor to provide very fast and virtually silent autofocus. Learn more|
|Position in the lineup|
|Sony ZEISS Vario-Sonnar T* 24-70mm F/2.8 ZA SSM II (SAL2470Z2)||Apr 2015||⊗|
|Sony Carl Zeiss Vario-Sonnar T* 24-70mm F/2.8 ZA SSM (SAL2470Z)||Jan 2008||⊗|
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|Maximum format:||35mm full frame|
|Diagonal angle of view:||84°-34.3° (35mm full frame)
61°-22.8° (Sony APS-C)
|Lens construction:||17 elements in 13 groups, including 2 ASPH, 2 ED|
|Closest focusing distance:||32 cm|
|Number of diaphragm blades:||9|
|Type of autofocus motor:||Ultrasonic (Minolta/Sony A)
|Full-Time Manual Focus:||Yes|
|Maximum diameter x Length:||Ø83 x 110 mm|
|Materials:||High-quality plastic barrel, metallic mount|
|Filter size:||77 mm|
The lens barrel is heavy, made of high-quality plastic. The lens mount is metallic.
The lens features AF/MF focus mode switch.
|AF||Autofocus mode with Direct Manual Focus.|
|MF||Manual focus mode.|
During autofocus operation, you can press the AF Stop button of the lens to temporarily pause autofocus. This lets you stop autofocus whenever any unwanted obstacle comes closer to the camera than the moving subject you are tracking. If the shutter button is still pressed halfway when the AF Stop button is released, autofocusing will continue as before. The AF Stop function also works in continuous autofocus mode. You can change the functions of the AF Stop button using the camera's custom functions menu.
The lens uses front filters with standard size of 77 mm which are easy to find. However, filters of such size are more expensive and mainly used with professional lenses.
The filter thread does not rotate during focusing which allows convenient use of different types of filters (including but not limited to polarizing and gradient).
Aspherical elements (ASPH, XA) minimize spherical aberration, astigmatism, coma and ensure excellent sharpness and contrast even at maximum aperture.
Low dispersion elements (AD, ED, LD, HLD, SD, UD etc) and fluorite elements minimize chromatic aberrations and ensure excellent sharpness and contrast even at maximum aperture.
|Camera||Sony Alpha DSLR-A900|
|Sensor size||35.9×24 mm|
|Distortion at 24 mm||-2.61 %|
|Distortion at 70 mm||+0.71 %|
|Vignetting at 24 mm F/2.8||-2.33 EV|
|Vignetting at 70 mm F/2.8||-0.99 EV|
|User Manual. Multilingual, Adobe PDF, 2 MB|
|User Manual. Multilingual, Adobe PDF, 7 MB|
Alternatives (AF, 21-79 mm)
|Sigma 24-70mm F/2.8 EX DG IF HSM||2008||⊗|
|Sigma 24-70mm F/2.8 EX DG Macro||2004||⊗|
|Sony ZEISS Vario-Sonnar T* 24-70mm F/2.8 ZA SSM II (SAL2470Z2)||2015||⊗|
|Tamron SP AF 24-70mm F/2.8 Di VC USD A007||2012||⊗|