Sigma update 50 mm and 105 mm Macro lenses
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Sigma
today announced new versions of the 50 mm F2.8 and 105 mm F2.8 Macro lenses.
Both of the new lenses carry the EX DG notation have improved coatings
and a new 'Floating Mechanism' to reduce aberrations. Both lenses are
also 'improved for the characteristics of digital SLRs'. For improved
macro depth of field both lenses have an impressive minimum aperture of
F45 on Sigma, Canon and Konica Minolta lens mounts, F32 on Nikon, Pentax
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