Sigma's vintage compact wide — Mini-Wide II 28mm f/2.8, a budget wide prime from the 1980s.
The Sigma Mini-Wide II 28mm f/2.8 is a vintage compact wide prime from Sigma's consumer range — the 'Mini-Wide' designation emphasised compact size. A basic 28mm at f/2.8 from the pre-EX budget era.
Optically basic — typical of Sigma's consumer lenses before the quality revolution. The 28mm provides standard wide-angle. The Mini-Wide design was compact for its era. Full-frame coverage.
Various SLR mounts. Mini-Wide — compact consumer design. 28mm at f/2.8. Pre-EX Sigma quality. The Mini-Wide name was a consumer marketing designation.
Available used for almost nothing. The Mini-Wide designation is long obsolete. Any modern 28mm is dramatically better. For vintage curiosity or absolute budget wide-angle only.