SIRUI Astra Series 50mm, 75mm&100mm T1.8 1.33X Full-frame Anamorphic Cine Lens Kit (E Mount, Blue Fl
SIRUI Astra Series 50mm, 75mm&100mm T1.8 1.33X Full-frame Anamorphic Cine Lens Kit (E Mount, Blue Fl
The SIRUI Astra Series 50mm, 75mm & 100mm T1.8 1.33X Full-frame Anamorphic Cine Lens Kit (E Mount, Blue Flare) captures detailed shots on mirrorless cameras with Full-Frame and APS-C sensors. The three prime lenses—50mm, 75mm, and 100mm—use a Sony E mount, making them fully versatile for both professional and amateur productions. A T1.8 aperture makes it easier to work in low-light conditions and creates a striking separation between the subject and the background. The optical system includes an aspherical element, which reduces the overall size of the barrel while suppressing unwanted image distortion. A three-stage protection system prevents dust, dirt, and raindrops from reaching the internal components when working in adverse weather.
Key features of the SIRUI Astra Series 50mm, 75mm & 100mm T1.8 1.33X Full-frame Anamorphic Cine Lens Kit (E Mount, Blue Flare)
- Three lenses with 50mm, 75mm, and 100mm focal lengths for both wide and detailed shots
- Constant 1.33× squeeze factor creates a cinematic 2.35:1 aspect ratio without cropping
- T1.8 to T22 aperture for shooting even in lower light conditions
- Fast and quiet autofocus suitable for both photography and video recording
- Distinctive blue anamorphic flares give shots a characteristic look
- Oval bokeh and vertical background stretching create an anamorphic image appearance
- Uniform colour rendering across all three lenses simplifies switching between them and subsequent post-production
- Identical gear ring placement for quick lens changes
- Full-frame design with a Sony E mount
Aperture
The T1.8 aperture makes it easier to work in low-light environments and provides room for creative play with depth of field. The aperture, adjustable up to T22, gives you control over the depth of field in every shot. You can shoot without needing to increase the ISO sensitivity, thereby preventing significant digital noise. The optical system delivers consistent results when shooting video and photos in various lighting conditions.
Fast STM focusing
The autofocus uses a stepping motor (STM) that operates quietly and smoothly to preserve clean audio recording directly on the camera. A switch on the body lets you quickly switch between automatic and manual focus modes without needing to go through the camera menu. This focusing system is suitable for shooting dynamic videos as well as static portraits. The motor responds quickly and accurately tracks moving objects in the frame.
Aperture control for video and photo
The aperture control ring offers a choice between a smooth, de-clicked operation for video and a stepped, clicked operation for photography. An aperture lock prevents the control ring from being accidentally turned while handling the equipment or during transport. The quiet, de-clicked operation is ideal for smooth exposure changes directly while filming a scene. This allows you to react subtly to changing light conditions without any distracting sounds in the video recording.
Integration into video systems
The unified placement of the gear rings makes it easy to change lenses on gimbals, drones, and camera cages without needing to readjust accessories. The identical colour rendering simplifies subsequent post-production and colour matching of individual shots from different focal lengths. You don't need to recalibrate follow-focus systems when changing lenses.
Accessory compatibility
The front of the barrel has a 67mm filter thread, and the outer diameter of this section is 72mm. The customisable FN button allows you to assign selected functions according to the individual needs of the camera operator or photographer for faster control. The lens is fully compatible with commonly available filters and LiDAR focusing systems. A built-in dual scale in metres and feet facilitates precise manual focusing and distance control.
Mount:
Sony E
Lens type:
Prime
Compatible cameras:
Sony A6500, A6600, A7 III, A7R III, A7R IV, A9 II, ZV-1, ZV-E10, A7 IV, A1, A9 III and A6700
Focal length:
50, 75 and 100mm
Aperture:
T1.8
Maximum aperture:
22
For sensor:
APS-C, Full Frame
Filter diameter:
67mm
Focusing technology:
STM
Specifications
Bayonet
Features
Functions
Dimensions
Specifications can be changed without notice. Images are for illustrative purposes only.
