The following chart presents a comparison between basic properties of different 24-25 mm lenses as fast as f/2.4-2.8 which are designed for full frame mirrorless cameras. The Sony model sticks out with its relatively low weight; still, it is not as low like the mostly plastic Samyang. Physical dimensions of the stested lens are also distinctly smaller than those of its Sigma and Tamron rivals.
In the photo below the Sony FE 24 mm f/2.8G is positioned between the Sony 50 mm f/1.4, designed for reflex cameras, and the Voigtlander Apo-Lanthar 65 mm f/2.0 Macro.
The tested lens starts with a metal mount that surrounds a rear element, 20 mm in diameter, and a contact plate. The rear element is situated behind a dark and matt 20x16 mm frame with rounded corners. The area around the lens is dark and matt as well, without any slits or electronic parts visible through them – from this side, everything looks as it should.
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The proper body of the lens is made of metal (black-painted aluminum) and starts with an immobile ring with the name and paramters of the lens, the Sony logotype, the E-mount mark, a white dot, making an alignment with a camera easier, its serial number, and information that the lens was manufactured in China.
Then you see an indentation in that immobile ring which swiftly turns into another part of the ring of a slightly increased diameter. Here you find the focal length of the lens and a G series mark, an aperture lock button (that can be also alloted other functions from the camera menu level), a focusing mechanism mode switch ( AF/MF ) and a CLICK ON/OFF toggle that is used to control the aperture ring.
Further on there is an aperture ring, 11 mm wide; in the middle of it there is a narrower part with ribbing that is supposed to ensure a firmer grip. The ring's working mode can be clickless or click-stopped every 1/3 EV.
Near the end of the barrel you find a manual focus ring, as wide as 8 mm, completely covered by rubber ribs. It doesn't feature any distance or DOF scale. The ring is a focus-by-wire construction and its focus throw amounts to about 160 degrees, depending on how fast you turn it. Such a value allows you to set the focus with adequate precision.
The front element doesn't move, is slightly convex and only 19 mm in diameter. It is surrounded by a part of the barrel with inscriptions stating the name of the lens, and its parameters; then you see a non-rotating filter thread, 49 mm in diameter, and a hood mount.
When it comes to optical construction you deal here with 8 elements put in 7 groups. Inside you can also find a round aperture with 7 diaphragm blades; it can be closed down to a value of f/22 at the maximum.
Buyers get in the box with the lens: both caps, and a hood.
