Sigma has announced the 135 mm F/1.4 DG Art Lens, designed for full-frame mirrorless cameras to the world’s first 135 mm F/1.4 autofocus prime lens. It is also the longest focal length prime lens in Sigma’s respected art series.
While 135 mm f/1.8 lenses are a known item, there are no 135 mm f/1.4 lenses for mirrorless cameras that are equipped with autofocus (Zongi Mitacon is only a manual focus, and leika Samilux-C is one of some manual focus cinema lenses).
The portrait telephoto prime of Sigma produces 17 elements arranged in 13 groups, including four FLDs and two aspherical elements. It has an aperture range of f/1.4 via F/16 via a 13-blades aperture diaphragm, which Sigma says that even on the edges of the frame, it produces very large, natural, near-circle Bokeh on the edges of the frame. Sigma says that the size of Bokeh is also larger than the Sigma 105 mm F/2DG HSM Art Lens, which states that it is known as “Bokeh Master”.
“Natural perspective 135 mm, unique, combined with its heavy bokeh, highlights the subject and makes only dimensional pictures with this lens,” sigma touts.
Looping back to the lens construction, Sigma says that FLD elements are strategically deployed with high-fed elements so that they press the axial chromatic aberration, which Sigma says that the large-appeal becomes more pronounced in the telephoto lens. The design promises to give the crisp theme details even when the wide is open shot, which Sigma specifically designed in a combination of Bokeh so that the lens would perform in a very high level of wide open.
The 135 mm F/1.4 DG art lens uses a floating focus system, which freely moves two focus groups so that it is able to ensure high resolution in the entire focus range. To run this system, Sigma implemented two high-response linear actors (HLA) for each group.
“By incorporating two different types of HLA, adapted to the movement range of each focus group, both the dual HLA system ensures both large-aperture telephoto lenses and fast, the required high emphasis for accurate air force performance. This also allows fleeting expressions and fast-moving subjects to catch with extraordinary reliability.
There are some sample images captured with the lens below, provided with Sigma courtesy:
On the outer, the lens has two AFL buttons, a de-clicious aperture ring and a manual focus/autofocus selector switch. Sigma says that the lens is dust and splash, and the front element will leave both water and oil behind. The tripod collar, which is removable, facilitates integrated arc-surplus cutouts.
The lens is not particularly large, measuring 4.4 up to 5.3 inches, but it is dense, which weighs 1,430 grams (50.4 ounces). The 135 mm F/1.4 DG is available for both E-and L-Mount; However, support for switching between linear and non-linear focus ring settings is limited to L-Mount only. The lens is coming in September and will cost $ 1,899.
Image Credit: Sigma
