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SIRUI IronStar 75/100/135mm T1.9 1.5x Full-Frame Anamorphic Cine Lens

SKU: IRON-75-N

Delivery starts on June 22, 2026.

Focal Length
Mount
Flare
SIRUI IronStar 75/100/135mm T1.9 1.5x Full-Frame Anamorphic Cine Lens

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Warranty

Free replacement within 3 years for non-human product defects.
IronStar Series
1.5x Full-Frame Anamorphic Cine Lens
3+3｜IronStar 1.5x Full-Frame Anamorphic Cine Lens Set
Light Up the Widescreen Again with IronStar
The first set includes three lenses-35mm, 45mm, and 60mm-for fundamental framing needs. Now after releasing 75mm, 100mm (Macro), and 135mm lenses to complete the ecosystem, the IronStar set fully supports both commercial and artistic cinematography projects. 100mm with 0.3m minimum focus distance breaks anamorphic close-up limits, enhancing close-up detail. Identical gear position and front diameter ensure consistent optical character across the set.
Introducing Three New Focal Lengths
From mid-to-telephoto coverage, versatile for all subjects and widescreen creation!
Natural Storytelling
Horizontally equivalent to 50mm on full-frame. Human-eye perspective, ideal for dialogue and storytelling. Well-balanced subject and background separation.0.8m Minimum Focus Distance
Macro + Close-Up
Horizontally equivalent to 66mm on full-frame.Suitable for food, jewelry details, and product commercials, combining close-focus capability with a cinematic perspective.0.3m Minimum Focus Distance
With a minimum focusing distance of 0.3m and 0.5x magnification, the 100mm captures crisp micro details at close range. More than just close-ups, it delivers true anamorphic macro performance—combining widescreen cinematic aesthetics with richly detailed macro imagery.
Portrait + Close-UpStrong Compression
Horizontally equivalent to 90mm on full-frame.Strong compression and excellent subject separation, perfect for isolating details and subjects from busy backgrounds in narrative films.0.8m Minimum Focus Distance
1.5x Constant Squeeze Ratio
Compared to 1.33x, 1.5x provides a wider horizontal view, stronger background compression, and more elliptical bokeh, enhancing the overall cinematic look and feel.
3:2 mode→2.25:1 widescreen aspect ratio
16:9 mode→2.66:1 widescreen aspect ratio
16:9 output in 6:5 mode
*Easily achieve a classic 2.4:1 widescreen image with minimal cropping.
Support Vertical Shooting
PL Mount with 360° four-way rotational positioning supports both horizontal and vertical production. Paired with a vertical monitor, it enables a professional on-set monitoring system, breaking traditional aspect-ratio limits and unlocking a new cinematic vertical widescreen storytelling.
3:2 Sensor
(2:3 Vertically)
Final 3:3 Square Output
(Apply 1.5x De-Squeeze)
Expansive Image Circle
The IronStar series lens set features a 46mm image circle, ensuring full coverage of all full-frame mirrorless camera sensors. It produces a clean, vignette-free image, delivering a truly immersive cinematic experience.
Image Circle 46mm
Full-Frame
※ Aperture wide open
Sharp and Smooth
Ultra fast T1.9 aperture ensures sharp performance in low-light situations. Vertical bokeh transitions smoothly, with crisp subjects and blurred backgrounds, effortlessly creating a shallow depth-of-field look rich in dimensionality and artistic tension.
*35/45/60/75mm Max Aperture T1.9
100mm (0.5x Macro)/135mm Max Aperture T2.8
Filmic Atmosphere
Features two flare styles—blue and natural flare—enhancing the anamorphic look with a cinematic aesthetic.
Classic Blue Flare
Perfect for creating cinematic looks in sci-fi, mystery, action, car scenes, and urban-style environments, etc.
Neutral Flare
Presents light in its natural form, suitable for daily shots, emotional advertising, natural and humanistic scenes, etc.
Outstanding Optical Performance
The IronStar series lens features 19 precision optical elements, including aspherical and cylindrical lenses, to reduce lens weight and produce sharp imagery with a subtle vintage glow—where modern engineering meets classic cinematic aesthetics.
Aspherical Lens
Precisely corrects spherical aberration and edge color aberration, decreases weight, and improves image purity.
Cylindrical Lens
Accurate optical design with multiple cylindrical elements helps prevent distortion, dispersion, and loss of clarity.
Well-Controlled Focus Breathing
Near-zero focus breathing during focus shifts maintains image stability and consistency, essential for professional cinematic workflows.
100mm T2.8
Consistent in a Set
The IronStar series lenses are designed with a uniform appearance and unified color temperature and tone, ensuring a cohesive visual style throughout the entire creative process.
Wide Compatibility
Filter thread: φ92mm/3.6inch, CPL and VND filters included in the kit
Front diameter: φ95mm/3.7inch, compatible with standard
cinema-grade matte boxes
Identical Gear Position
Designed for fast lens swaps, easing the process of follow focus and accessory adjustments.
Compact and Lightweight
The lightest is 1085g/2.39lb
270° Focus Throw
Metallic Texture
Compact and Lightweight
The lightest is 1085g/2.39lb
Interchangeable PL/EF Mount Module
Each lens comes with a native PL mount and includes an EF mount with dedicated tools. Users can effortlessly switch between mounts as needed, significantly enhancing the lens's cost-effectiveness and operational versatility.
PL Mount
EF Mount
Innovative Back Focus Adjustment
Simply turn the back focus adjustment ring instead of disassembling the mount or adding shims, providing a flexible and convenient operation experience.
Born for Professional Quality
Affordable anamorphic cine lens allows indie filmmakers, small teams, and commercial project groups to create with cinematic precision.
Free replacement within three years for non-human damage (with valid proof of purchase). Lifetime paid repair service available for human-caused damage (e.g., drops, water, modifications).
*For more details, please refer to the warranty card.
What's in the Box
Single Lens
Lens (PL Mount) * 1
EF Mount Module * 1
Lens Pouch * 1
Tool Kit * 1
Lens Kit
Lens Hard Case * 1
92mm CPL * 1
Lens (PL Mount) * 3
92mm VND * 1
EF Mount Module * 3
Tool Kit * 1
* Free CPL & VND filters included with the 3-lens kit only
Specifications
  • Model
  • 75mm T1.9 1.5x
  • 100mm T2.8 1.5x
  • 135mm T2.8 1.5x
  • Lens Format Coverage
  • Full Frame
  • Full Frame
  • Full Frame
  • Focal Length
  • 75 mm
  • 100 mm
  • 135 mm
  • Max Aperture
  • T1.9
  • T2.8
  • T2.8
  • Min Aperture
  • T16
  • T16
  • T16
  • Lens Structure
  • 19 Elements in 16 Groups (4 Cylindrical Lenses and 1 Aspherical Lens)
  • 19 Elements in 15 Groups (5 Cylindrical Lenses and 1 Aspherical Lens)
  • 13 Elements in 10 Groups (5 Cylindrical Lenses)
  • Aperture Blade
  • 18
  • 16
  • 12
  • Minimun Focus Distance
  • 0.8M (2ft 8in）
  • 0.3M (1ft）
  • 0.8M (2ft 8in）
  • Focus Method
  • MF
  • MF
  • MF
  • Max Magnification
  • 0.105x (V）
    0.007x (H）
  • 0.5x (V）
    0.305x (H）
  • 0.214x (V）
    0.141x (H)
  • FOV (Full Frame)
  • 19.6 (V)
    42.8 (H)
    45.8 (D)
  • 14.7 (V)
    32.4 (H)
    34.7 (D)
  • 11.1 (V)
    24.5 (H)
    26.8 (D)
  • Focus Ring Rotation Angle
  • 270°
  • 270°
  • 270°
  • Filter Size
  • M92*P0.75
  • M92*P0.75
  • M92*P0.75
  • Max Diameter
    (mm/inch)
  • φ95/3.74
  • φ95/3.74
  • φ95/3.74
  • Focus Ring Diameter
    (mm/inch)
  • φ89.6/3.53
  • φ89.6/3.53
  • φ89.6/3.53
  • Aperture Ring
    Diameter (mm/inch)
  • φ81.6/3.21
  • φ81.6/3.21
  • φ81.6/3.21
  • Length (mm/inch)
    (Exclude Lens Cap)
  • EF :143.4/5.65
    PL :135.4/5.33
  • EF : 153.5/6.04
    PL : 145.5/5.73
  • EF : 141/5.55
    PL : 133/5.24
  • Weight (g/lb)
    (Exclude Lens Cap)
  • EF : 1152/2.54
    PL : 1178/2.6
  • EF : 1085/2.39
    PL : 1109/2.44
  • EF : 1110/2.45
    PL : 1135/2.5
  • Model
  • 35mm T1.9 1.5x
  • 45mm T1.9 1.5x
  • 60mm T1.9 1.5x
  • Lens Format
    Coverage
  • Full Frame
  • Full Frame
  • Full Frame
  • Focal Length
  • 35mm
  • 45mm
  • 60mm
  • Max Aperture
  • T1.9
  • T1.9
  • T1.9
  • Min Aperture
  • T16
  • T16
  • T16
  • Lens Structure
  • 20 Elements in 16 Groups (6 Cylindrical Lenses and 1 Aspherical Lens)
  • 19 Elements in 14 Groups(4 Cylindrical Lenses and 1 Aspherical Lens)
  • 19 Elements in 14 Groups(5 Cylindrical Lenses and 1 Aspherical Lens)
  • Aperture Blade
  • 16
  • 16
  • 16
  • Minimum Focus
    Distance
  • 0.65m (2ft 2in)
  • 0.65m (2ft 2in)
  • 0.78m (2ft 2in)
  • Focus Method
  • MF
  • MF
  • MF
  • Max Magnification
  • 1：15.15 (V)
    1：23.26 (H)
  • 1：12.5 (V)
    1：19.23 (H)
  • 1：11.36 (V)
    1：17.86 (H)
  • FOV (Full Frame)
  • 39.64 (V)
    79.98 (H)
    83.88 (D)
  • 32.08 (V)
    67.55 (H)
    71.1(D)
  • 23.59 (V)
    50.63 (H)
    53.82 (D)
  • Focus Ring Rotation Angle
  • 270°
  • 270°
  • 270°
  • Filter Size
  • M92*P0.75
  • M92*P0.75
  • M92*P0.75
  • Max Diameter
    (mm/inch)
  • φ95/3.7
  • φ95/3.7
  • φ95/3.7
  • Focus Ring Diameter
    (mm/inch)
  • φ89.6/3.5
  • φ89.6/3.5
  • φ89.6/3.5
  • Aperture Ring
    Diameter(mm/inch)
  • φ81.6/3.2
  • φ81.6/3.2
  • φ81.6/3.2
  • Length (mm/inch)
    ( Exclude Lens Cap)
  • EF : 131/5.2
    PL : 123/4.8
  • EF : 137.5/5.4
    PL : 129.5/5.1
  • EF : 142/5.6
    PL : 134/5.3
  • Weight (g/lb)
    (Exclude Lens Cap)
  • EF : 998/2.2
    PL : 1024/2.3
  • EF : 990/2.2
    PL : 1020/2.2
  • EF : 1023/2.3
    PL : 1044.6/2.3

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