SIRUI Astra 50mm T1.8 1.33x Full-Frame AF Anamorphic Cine Lens (Sony E, Blue Flare)

Product #124448 | SKU AST-50-EB | Sirui
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Features

  • 50mm 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
  • Clickless Or Clicked Iris

Description

The SIRUI Astra 50mm T1.8 1.33x Full-Frame AF Anamorphic Cine Lens (Sony E, Blue Flare) is engineered to provide a captivating widescreen anamorphic look, featuring a constant 1.33x squeeze ratio. This lens is optimized for shooting in a 16:9 aspect ratio, allowing filmmakers to easily achieve a 2.35:1 cinematic presentation without any need for image cropping or pixel loss.

Purpose-built for streamlined production environments, the Astra Series brings robust and accurate autofocus capabilities to full-frame anamorphic cinematography. Its compact form factor is complemented by a generous 44mm image circle, ensuring comprehensive coverage for full-frame sensors.

Specifications

General
Format Coverage Full Frame
Focal Length 50mm
Squeeze Ratio 1.33x (Constant)
Image Circle 44mm
Optical
Lens Structure 18 Elements in 14 Groups (4 Cylindrical Lenses and 1 Aspherical Lens)
FOV (Full Frame) 27.8° (V) / 56.8° (H) / 60.9° (D)
Filter Size M67 × P0.75
Aperture
Aperture Range T1.8 to T22
Aperture Blades 11
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 0.5 m (1.64 ft) to ∞
Max Magnification 1: 7.2 (V) / 1: 10.2 (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 50mm T1.8 1.33x Full-Frame AF Anamorphic Cine Lens (Sony E, Blue Flare)
  • Front Lens Cap
  • Rear Lens Cap
  • Lens Cleaning Cloth
  • Carrying Bag

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Details

  • Product: SIRUI Astra 50mm T1.8 1.33x Full-Frame AF Anamorphic Cine Lens (Sony E, Blue Flare)
  • Manufacturer: Sirui
  • Model: AST-50-EB
  • SKU: AST-50-EB
  • RM Product #: 124448
  • Lens Type: Anamorphic
  • Maximum Aperture: T1.8
  • Lens Mount: Sony E
  • Zoom or Prime Lens: Prime
  • Flare Colour: Blue
  • Warranty: Click here for warranty lengths view terms
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