SIRUI Astra 75mm T1.8 1.33x Full-Frame AF Anamorphic Cine Lens (L-Mount, Blue Flare)

Product #124443 | SKU AST-75-LB | Sirui
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Features

  • 75mm Full-Frame Anamorphic Prime
  • Constant 1.33x Squeeze Ratio
  • Fast T1.8 to T22 Aputure
  • Full-Frame 44mm Image Circle
  • Autofocus With STM Motor
  • 67mm Filter Thread
  • Dual Feet/Meter Focus Scale

Description

The SIRUI Astra 75mm T1.8 1.33x Full-Frame AF Anamorphic Cine Lens (L-Mount, Blue Flare) unites a constant 1.33x squeeze ratio with an ultra-fast T1.8 aperture, providing filmmakers with a distinctive widescreen cinematic look at a 2.35:1 aspect ratio, all from standard 16:9 capture—eliminating the need for cropping or risk of pixel loss.

Constant 1.33x Squeeze Ratio

The consistency of the 1.33x squeeze ensures that every frame captures the signature anamorphic characteristics, such as unique lens flares and oval-shaped bokeh, for a true cinematic experience.

Fast T1.8 Aperture

A rapid T1.8 maximum aperture enables superb low-light performance and allows for a shallow depth of field, giving filmmakers creative control over focus and background separation.

Designed for Mirrorless Production

Tailored specifically for mirrorless cameras, the Astra Series is optimized for full-frame sensors, ensuring maximum image quality and coverage.

Autofocus for Solo and Small Teams

With advanced, fast, and precise autofocus capabilities, the lens streamlines the shooting process, making it ideal for solo operators and smaller crews who need efficiency without compromising the unique look of anamorphic cinematography.

Maintain Anamorphic Character

While enhancing convenience and speed, the Astra 75mm T1.8 lens preserves the distinct visual character associated with anamorphic optics, empowering creators to deliver stunning cinematic visuals without the trade-offs of traditional systems.

Specifications

General
Format Coverage Full Frame
Focal Length 75mm
Squeeze Ratio 1.33x (Constant)
Image Circle 44mm
Optical
Lens Structure 18 Elements in 13 Groups (4 Cylindrical Lenses and 1 Aspherical Lens)
FOV (Full Frame) 18.52° (V) / 36.9° (H) / 40.37° (D)
Filter Size M67 × P0.75
Aperture
Aperture Range T1.8 to T22
Aperture Blades 13
Aperture Ring Diameter 75.2mm / 2.96 inch
CLICK ON / OFF Stepped aperture / stepless aperture
IRIS LOCK Lock at “A” for auto aperture; switch for manual aperture control
Focus
Focus Method MF / AF
Focus Motor STM
Shooting Distance 0.6 m (1.97 ft) to ∞
Max Magnification -0.165 (V) / -0.123 (H)
Focus Ring Rotation Angle 136°
FN Auto focus lock/customization
Physical
Max Diameter Φ80mm / 3.15 inch
Focus Ring Diameter Φ80mm / 3.15 inch
Outer Diameter Φ72mm
Protection Triple protection (Dustproof, Dirt-Resistant, Raindrop-Resistant)
Dual Scale Feet/Meter

In The Box

  • SIRUI Astra 75mm T1.8 1.33x Full-Frame AF Anamorphic Cine Lens (L-Mount, Blue Flare)
  • Front Lens Cap
  • Rear Lens Cap
  • Lens Cleaning Cloth
  • Carrying Bag

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Details

  • Product: SIRUI Astra 75mm T1.8 1.33x Full-Frame AF Anamorphic Cine Lens (L-Mount, Blue Flare)
  • Manufacturer: Sirui
  • Model: AST-75-LB
  • SKU: AST-75-LB
  • RM Product #: 124443
  • Lens Type: Anamorphic
  • Maximum Aperture: T1.8
  • Lens Mount: Leica L
  • Zoom or Prime Lens: Prime
  • Flare Colour: Blue
  • Warranty: Click here for warranty lengths view terms
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