Sony has introduced a set of compact full-frame E-mount prime lenses: the 24mm F2.8 G, 40mm F2.5 G and 50mm F2.5 G. All three lenses are the same size, almost the same weight, and the same price ($599).
The lenses all measure 64 x 45mm (2.5 x 1.8 in.) and weigh between 162-174 grams (5.7-6.1 ounces). They all use aspherical elements to maintain high resolution and reduce various aberrations, while the 24mm and 50mm lenses additionally use ED (extra-low dispersion) glass to reduce chromatic aberrations and fringing. The focus groups are driven by dual linear motors for silent and nearly instantaneous autofocus in our initial impressions.
Minimum focus distances range from 0.18m (7.1″) for the 24mm to 0.31m (12.2″) for the 50mm, but increase slightly when using autofocus. The 40mm and 50mm primes have higher magnification ratios at 0.23x and 0.21x, respectively, while the 24mm maxes out at 0.19x.
Design-wise, each lens has a physical aperture ring, which can be clicked or de-clicked, a linear-response manual focus ring, an AF/MF switch, and a customizable focus hold button. The filter diameter for all three is 49mm. Sony claims that these metal-clad (aluminum) lenses are weather and dust-resistant, and each lens comes with a rubber gasket seal around the Lens mount. Accompanying lens hoods are included, with the 40mm and 50mm hoods containing their own 49mm front threads for attachment of filters.
The Sony FE 24mm F2.8, 40mm F2.5 and 50mm F2.5 trio will be available in mid-to-late May for $599.
Sony 24mm F2.8 / 40mm F2.5 / 50mm F2.5 specifications
|Sony FE 24mm F2.8 G||Sony FE 40mm F2.5 G||Sony FE 50mm F2.5 G|
|Lens type||Prime lens|
|Max Format size||35mm FF|
|Focal length||24 mm||40 mm||50 mm|
|Lens mount||Sony FE|
|Number of diaphragm blades||7|
|Special elements / coatings||1 ED + 3 aspherical elements||3 aspherical elements||1 ED and 2 aspherical elements|
|Minimum focus||0.18 m (7.09″)||0.25 m (9.84″)||0.31 m (12.2″)|
|Motor type||Linear Motor|
|Full time manual||Yes|
|Weight||162 g (0.36 lb)||173 g (0.38 lb)||174 g (0.38 lb)|
|Diameter||68 mm (2.68″)|
|Length||45 mm (1.77″)|
|Filter thread||49 mm|