|DISTAGON||Retrofocus lens based on asymmetric Distagon optical design. First Distagon appeared in 1953, the optical scheme has evolved since then and is now used not only in Carl Zeiss lens.|
|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|
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|Maximum format:||35mm full frame|
|Diagonal angle of view:||84° (35mm full frame)
61° (Sony APS-C)
|Lens construction:||9 elements in 7 groups, including 2 ASPH, 2 ED|
|Closest focusing distance:||19 cm|
|Number of diaphragm blades:||9|
|Type of autofocus motor:||Ultrasonic (Minolta/Sony A)
|Full-Time Manual Focus:||Yes|
|Maximum diameter x Length:||Ø78 x 76 mm|
|Materials:||Metallic barrel, metallic mount|
|Filter size:||72 mm|
The lens barrel is of moderate weight, made of metal. 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 72 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|
|Vignetting at F/2.0||-2.19 EV|
Typical Application1) Full to mid-body portraits
|User Manual. Multilingual, Adobe PDF, 752 KB|
|User Manual. Multilingual, Adobe PDF, 550 KB|
|User Manual. Multilingual, Adobe PDF, 634 KB|
Alternatives (AF, 21..27 mm)
|Sigma 24mm F/1.8 EX DG Aspherical Macro||2000||⊗|