|Position in the lineup|
|Sony 20mm F/2.8 (SAL20F28)||Jun 2006||⊗|
|Minolta AF 20mm F/2.8 RS||1993||⊗|
|Minolta AF 20mm F/2.8||1986||⊗|
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|Maximum format:||35mm full frame|
|Diagonal angle of view:||94.5° (35mm full frame)|
|70.5° (Sony APS-C)|
|Lens construction:||10 elements in 9 groups|
|Number of blades:||7|
|Closest focusing distance:||24 cm|
|Type of autofocus motor:||No motor (Minolta/Sony A)|
|Full-Time Manual Focus:||Yes|
|Maximum diameter x Length:||Ø78 x 54 mm|
|Filter size:||72 mm|
Design and Features
Rebranded Minolta 20mm F/2.8 RS.
The lens barrel is compact, of moderate weight, made of plastic. 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.
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).
The focusing ring rotates during autofocus which looks pretty anachronistic by today's standards. It is strongly recommended not to touch the ring or manually stop its movement because it might result in damage to the lens and/or camera.
|User Manual. English, Adobe PDF, 362 KB|
|User Manual. Русский, Adobe PDF, 197 KB|
Alternatives (AF, 17..23 mm)
|Sigma 20mm F/1.8 EX DG Aspherical RF||2000||⊗|