Capture wide cinematic images enhanced by natural blue flares using the Astra Series T1.8 1.33x 100mm Full-Frame Anamorphic Lens from Sirui. Equipped with a Sony E mount, the lens offers a maximum aperture of T1.8 for low-light image capturing and shallow depth of field, and a minimum aperture of T22. The expansive 44mm image circle ensures edge-to-edge sharpness and optimal coverage without vignetting, and the optical design is crafted with 18 elements in 13 groups. It can be focused manually, offering a minimum focus distance of 2.3′, and it weighs only 1.6 lb without the front and rear lens caps.

Full-Frame Coverage with Expansive 44mm Image Circle

The 44mm image circle fully covers full-frame sensors and is compatible with mirrorless systems and ready for professional cinematic production.

Solo-Ready Autofocus

Traditional full-frame anamorphic lenses rely on manual focus, which limits efficiency and requires large crews, typically for professional film teams. Astra Series lenses provide fast and precise autofocus, eliminating the need for a focus puller. This significantly increases shooting efficiency, enabling solo operators or small teams to shoot professional cinema with ease.

Built-In Metric and Imperial Focus Distance Scale

Built-in focus distance scale with metric and imperial markings, and LiDAR follow focus compatibility, ensures consistent focus tracking, supporting efficient and stable professional filmmaking.

Constant 1.33x Squeeze Ratio

Most mirrorless cameras shoot in 16:9. With a 1.33x squeeze ratio, this lens directly restores the classic 2.4:1 widescreen cinematic look without cropping or pixel loss, delivering a high-resolution, immersive image.

Pleasing Cinematic Bokeh

Oval bokeh and vertical background stretch bring classic cinematic artistry to life, augmented by visually pleasing neutral flares.

Optimal Low-Light Performance with True Anamorphic Character

Provides ample light even in low-light or night scenes for high-quality and clean images. The shallow depth of field creates soft bokeh and natural subject separation, guiding the viewer’s focus with ease. While maintaining the distinctive anamorphic character, Astra Series lenses improve central sharpness. Vintage edge rendering meets modern control of distortion and focus breathing, achieving a refined balance that defines true anamorphic character.

Outstanding Close-Up Performance

Easily capture portraits and vivid close-ups with rich detail. The T1.8 fast aperture adds depth, texture, and atmosphere with uniform color and tone across all focal lengths, enabling fast lens swapping and easier post-production.

Specification

Focal Length	100mm
Maximum Aperture	T1.9
Lens Mount	Sony E
Lens Format Coverage	Full-Frame (44 mm Image Circle)
Filter Thread	67 mm x 0.75
Image Stabilization	No
Electronic Communication	Yes

Focal Length	100mm
Maximum Aperture	T1.9
Minimum Aperture	T22
Lens Mount	Sony E
Horizontal Squeeze (Anamorphic)	1.33x
Flare Color	Neutral
Lens Format Coverage	Full-Frame (44 mm Image Circle)
Angle of View	Full Frame Vertical: 18.4° Horizontal: 27.4° Diagonal: 32.3°
Focus Scales	Metric, Imperial
Optical Design	18 Elements in 13 Groups
Filter Thread	67 mm x 0.75
Minimum Focus Distance	From Front of Lens: 2.3′ / 0.7 m
Aperture/Iris Blades	13
Image Stabilization	No
Gear Rotation	Focus: 136°
Electronic Communication	Yes
Diameter	Maximum: 3.1 x 3.1″ / 80 x 80 mm
Length	5.3″ / 135.3 mm Without Lens Caps
Weight	1.5 lb / 700 g