Name: Sirui Astra Anamorphics
Brand: Tokina
Price: 180.00 GBP
Availability: InStock
Rating: 5 (1 reviews)

The Sirui Astra Series 50mm, 75mm and 100mm T1.8 is a full-frame anamorphic cine lens kit built around a constant 1.33x squeeze and fast autofocus. Designed to restore a 2.35:1 widescreen image from 16:9 capture without cropping, the set keeps colour and contrast consistent across focal lengths. The T1.8 aperture and blue-flare tuning deliver a recognisable anamorphic look while remaining practical for small crews and solo operators.

Sirui Astra Cine Lens Kit Key Features:

Three-lens anamorphic set covering 50mm, 75mm and 100mm
Constant 1.33x squeeze restores 2.35:1 image from 16:9 capture
Fast T1.8 aperture supports low light and shallow depth of field
18-element optical design helps maintain consistent rendering
Full-frame 44mm image circle for modern mirrorless sensors
Autofocus with STM motor improves speed for small crews
Uniform colour and contrast across the full focal range
Identical gear positions support quick lens swaps
Oval bokeh and vertical stretch create a classic anamorphic look
Distinctive anamorphic flare rendering defines cinematic character
Matching 67mm filter threads across all lenses

Built as a true matched set

The Astra Series works as a complete trio rather than three separate lenses. Colour, contrast, and flare behaviour remain consistent from 50mm to 100mm, so cuts match naturally without extra grading work. Identical gear positions and shared filter sizes mean lens changes are quick and predictable, which matters when shooting with a limited crew or on tight schedules.

Anamorphic look without compromise

Each lens maintains a constant 1.33x squeeze ratio, allowing a widescreen 2.35:1 image straight from a standard 16:9 sensor with no cropping or resolution loss. Vertical background stretch and oval bokeh appear naturally, giving footage the familiar anamorphic feel while keeping framing straightforward on modern cameras and monitors.

Autofocus that fits real production

Unlike traditional full-frame anamorphic lenses, the Astra Series integrates fast, accurate autofocus driven by an STM motor. For solo shooters or small teams, this removes the need for a dedicated focus puller and keeps moving subjects sharp. A physical AF/MF switch allows quick transitions to manual focus when a shot calls for it, without slowing down on set.

T1.8 speed and close-up control

The fast T1.8 aperture gives extra flexibility when light levels drop, while also allowing controlled subject separation in dialogue and portrait work. Close-up performance stays strong, with fine detail and smooth fall-off that suits faces and textured surfaces alike. The result feels cinematic without becoming fragile or overly stylised.

Practical cine handling

The lenses are designed for everyday production use. Triple protection helps guard against dust, dirt and light rain, while dual distance scales in feet and metres keep focus references clear. Dedicated controls for iris lock, click-on or off aperture, and customisable focus functions make the lenses easy to adapt across narrative, commercial, and documentary setups.

What’s in the box?

1 x SIRUI Astra 50mm T1.8 Full-Frame AF Anamorphic Cine Lens (Sony E, Blue Flare)
1 x SIRUI Astra 75mm T1.8 Full-Frame AF Anamorphic Cine Lens (Sony E, Blue Flare)
1 x SIRUI Astra 100mm T1.8 Full-Frame AF Anamorphic Cine Lens (Sony E, Blue Flare)
3 x Front Lens Caps
3 x Rear Lens Caps
1 x Lens Cleaning Cloth
1 x Hard Case

Each lens uses a 44mm image circle that fully covers the image circle of full-frame mirrorless sensors. This allows the anamorphic image to fill the sensor without vignetting, while maintaining consistent squeeze and character across the frame.

The STM autofocus motor is tuned for smooth, controlled focus movement rather than sudden jumps. This suits tracking subjects or holding focus during handheld and gimbal work, especially for operators working without a focus puller.

The difference between these blue flare and the neutrals, lies in how the lenses render backlit highlights. One version produces a more pronounced coloured horizontal flare, while the other keeps the flare more restrained and neutral, without changing sharpness, squeeze ratio or handling.

Identical gear positions across the set simplify follow focus alignment, and consistent outer dimensions make clamp-on matte boxes more straightforward to use. Matching filter threads also makes front filtration straightforward when a matte box is not required.

Autofocus, consistent handling and a fast T1.8 aperture make the Astra Series far easier to manage solo than traditional anamorphic lenses, while still delivering a true widescreen cinematic image.

Product Specification

Aperture Blades	11 (50mm) 13 (75mm, 100mm)
Autofocus Motor	STM
Colour	Black
Enlargement Ratio	Up to approx. 1:7.2 (varies by focal length and axis)
Filter Thread [mm]	67
Focal Length ~ Tele [mm]	100.0
Focal Length ~ Wide [mm]	50.0
Lens Elements	18
Lens Groups	14
Lens Mount	E Mount
Lens Type	Prime Cine Lens
Max Aperture ~ Tele	1.8
Max Aperture ~ Wide	1.8
MF Switch	Yes
Minimum Aperture	22
Minimum Focus Distance [m]	0.50
Size	Length: 131mm / 131mm / 135.3mm
Tele~Converter Compatibility	No
Weight [g]	1970.00