|PLANAR||Optically the lens is based on Planar design which was invented in 1896 and exists nowadays in several incarnations. In fact it's the most successful and the most copied optical design. The Planar designation comes from German word plan which means "plane" and emphasizes the flat field of view of the 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.|
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|Maximum format:||35mm full frame|
|Diagonal angle of view:||28.5° (35mm full frame)
18.9° (Sony APS-C)
|Lens construction:||8 elements in 7 groups|
|Closest focusing distance:||86 cm|
|Number of diaphragm blades:||9|
|Type of autofocus motor:||No motor (Minolta/Sony A)
|Full-Time Manual Focus:||Yes|
|Maximum diameter x Length:||Ø82 x 75 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 lacks focusing mode switch, therefore you have to set the automatic or manual focus mode from the camera. Direct Manual Focus is available.
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 lens incorporates a floating system that provides correction of aberrations and ensures constantly high image quality at the entire range of focusing distances from infinity down to the closest focusing distance. Learn more
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).
|Camera||Sony Alpha DSLR-A900|
|Sensor size||35.9×24 mm|
|Vignetting at F/1.4||-1.51 EV|
Portrait photography▪Street photography▪Travel photography
|User Manual. Multilingual, Adobe PDF, 2 MB|
|User Manual. Multilingual, Adobe PDF, 7 MB|
Alternatives (AF, 74..96 mm)
|Sigma 85mm F/1.4 EX DG HSM||2010||⊗|
|Sony 85mm F/2.8 SAM (SAL85F28)||2010||⊗|
|Tamron SP AF 85mm F/1.8 Di VC USD F016||2016||⊗|