Sigma continues to offer new lenses for hybrids with two fixed focal lengths, the 24mm F2 DG DN | Contemporary and 90mm F2.8 DG DN | Contemporary. Both lenses will be available for Sony’s full-frame E-mount or L-mount cameras found at Panasonic, Leica, and of course Sigma.
Both belonging to the Contemporary range, Sigma also positions them on the I Series that the optician qualifies as “premium”. In addition to new optical performance up to date in terms of quality, the range of fixed focal lengths is very well built and rather compact.
Le 24mm F2 DG DN | Contemporary
The 24mm F2 DG DN | Contemporary is constructed from all metal and has a dedicated ring to handle the opening. Sigma naturally asserts that the quality will be there. The lens is also reminiscent of Sony’s FE 24mm F2.8 G – which should be tested soon – and Tamron’s 24mm F / 2.8 Di III OSD M1: 2, although the latter two references benefit from a smaller aperture than the new Sigma optics. The 24mm therefore becomes the third fixed focal length with f / 2 aperture alongside the previous 65mm F2 DG DN Contemporary and 35mm F2 DG DN Contemporary.
The optical formula of the 24mm F2 DG DN | Contemporary is based on 13 lenses divided into 11 groups, including two aspherical lenses. Sigma uses FLD and SLD glass on some of them to reduce chromatic aberrations in particular. The diaphragm has 9 blades. In addition, the construction is dust and moisture resistant for a weight of 365g and a length of 72mm.
Le 90mm F2.8 DG DN | Contemporary
The 90mm F2.8 DG DN | Contemporary obviously incorporates the main characteristics of 24 mm. The construction is of the same ilk with the use of metal, tropicalization or the diaphragm management ring. Here the f / 2.8 aperture is more modest, especially for a fixed focal length very popular with portrait painters. The advantage of an f / 2.8 aperture is obvious: the lens weighs only 295 g for a length of 59.5 mm.
Sigma also announces excellent performance. With this interesting f / 2.8 aperture, but not necessarily very ambitious, we will be very attentive to the rendering from the full aperture. The optical formula is based on 11 elements divided into 10 groups. The use of SLD glass is repeated on a lens, but no trace of FLD glass is found. The diaphragm also uses 9 blades.
The minimum focusing distance is 50 cm and thus falls into the category of short distances for this type of focal length. Getting closer becomes easier to create shots that are a little more original. Note also that the two new lenses benefit from a magnetic metal cap. A little more not necessarily decisive, but which does not fail to make its small effect.
Pricing and availability
The Sigma 24mm F2 DG DN | Contemporary and 90mm F2.8 DG DN | Contemporary will both sell for a suggested retail price of € 619 for availability at the end of September.
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