SIRUI IronStar 1.5x Anamorphic 75mm T1.9 · Full Frame Cine MF

SIRUI IronStar 75mm T1.9 1.5x Full Frame Anamorphic Cine Lens — 1.5x 75mm T1.9 anamorphic lens with 18 aperture blades, 50mm horizontal equivalent and user-swappable PL/EF mounts

The SIRUI IronStar 75mm T1.9 is a 1.5x anamorphic lens for full-frame cameras. Its 75mm focal length gives a horizontal equivalent of about 50mm, close to the human eye's perspective, making it ideal for dialogue and storytelling scenes with a well-balanced relationship between subject and background. At T1.9 it is the fastest lens in the set, offering the best low-light performance and the softest background blur. The constant 1.5x squeeze turns 16:9 footage into a ratio close to 2.4:1 after de-squeeze. 18 aperture blades produce exceptionally smooth oval bokeh, with anamorphic flare available in Blue or Neutral. It features 19 elements in 16 groups, cinema-grade glass (ED / Aspherical / HRI), very low focus breathing, 0.8 MOD gears, a 270° focus throw and user-swappable PL and Canon EF mounts.

Key Features

• 75mm full-frame focal length: a medium telephoto, a popular choice for people, portrait, fashion and animal photography
• Full-frame anamorphic coverage for a wide, cinematic image
• 1.5x anamorphic for cinematic proportions: shoot 16:9 and get close to 2.4:1 without heavy cropping, adding true film-like depth
• Wide T1.9 aperture for bright images, strong low-light performance and dimensional background blur
• Oval bokeh that separates the background for the signature anamorphic look
• Blue/Neutral flare adds natural-looking cinematic mood without disturbing image color
• Cinema-grade optical design with high-quality elements (ED / Aspherical / HRI) for sharp images and accurate color
• Near-zero focus breathing keeps the frame steady during focus pulls, ideal for video
• Cine-grade manual focus for precise control
• 0.8 m close focus for both portrait and close-up shooting
• Standard 0.8 MOD gears and a 270° focus rotation, compatible with professional follow focus and cine rig accessories
• Interchangeable mounts: PL (for professional cinema cameras) and EF Mount (for DSLRs and some mirrorless cameras) — works across many systems, from cinema cameras to DSLR / Mirrorless
• All-metal construction, rugged enough for real on-set use

Best For

• Dialogue and storytelling scenes
• Narrative Film
• Portrait Cinematic
• Low light
• Music Video / Commercial

Specifications

Flare Type

• Blue Flare
• Neutral Flare

What's in the Box

• SIRUI IronStar 75mm T1.9 1.5x lens
• PL and Canon EF mounts (user-swappable)
• Front Cap
• Rear Cap
• User Manual

FAQ

• Q: How do I de-squeeze 1.5x anamorphic footage?
  A: In your editing software, stretch the image horizontally by 1.5x (or set Pixel Aspect Ratio to 1.5). Shooting 16:9 and de-squeezing gives roughly a 2.4:1 widescreen cinema ratio
• Q: PL or EF, which should I choose? Are both included?
  A: Both PL and Canon EF mounts are included in the box and can be swapped by the user. PL is for professional cinema cameras (ARRI, RED), while EF is for DSLRs and can be adapted to mirrorless cameras
• Q: What is the difference between Blue Flare and Neutral Flare?
  A: Blue Flare produces the classic blue anamorphic streak, clearly visible when a bright light source enters the frame. Neutral Flare gives a neutral-toned flare with no color cast, suited to work that requires accurate color control

See more cine lenses → Cine Lenses

SIRUI IronStar 75mm T1.9 1.5x Full Frame Anamorphic Cine Lens — 3-year official Thai warranty