Sigma 28-35-50 AF Zoom
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Sigma 35 AF Zoom image by Hans Kerensky (Image rights) |
In 1990 the Japanese company Sigma introduced 3 Auto Focus 35mm cameras. The only difference being the range of the zoom lenses.
Sigma 28 AF Zoom focal length range from 28-50mm, F4.2-F7.0
Sigma 35 AF Zoom focal length range from 35-70mm, F3.5-F6.7
Sigma 50 AF Zoom focal length range from 50-100mm, F4.3-F8.0