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

Name: SIRUI IronStar 75/100/135 mm T1.9 1.5x Full-Frame Anamorphic Cine Lens
Brand: SIRUI Optical GmbH
SKU: IRON-100-N
Price: 1179.0 EUR
Availability: InStock

SKU: IRON-100-N

€1.179,00

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Key Features

Focal Length

75mm 100mm 135mm 3 Lens Set 6 Lens Set

Mount

User-interchangeable EF/PL Mount

Flare

Neutral Blue

Product variants

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

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IronStar Series

1.5x Full-Frame Anamorphic Cinema Lens

3+3｜IronStar 1.5x Full-Frame Anamorphic Cinema Lens Set

Make the widescreen shine again with IronStar

The first set includes three lenses - 35 mm, 45 mm, and 60 mm - for essential framing needs. After adding the 75 mm, 100 mm (macro), and 135 mm lenses to complete the ecosystem, the IronStar set now fully supports both commercial and artistic cinema projects. With a minimum focusing distance of 0.3 m, the 100 mm lens breaks through the limitations of anamorphic close-ups and enhances detail rendering at close range. Identical gear positions and front diameters ensure consistent optical characteristics across the entire set.

Three new focal lengths introduced

From mid-range to telephoto - versatile for all subjects and perfect for widescreen composition!

Natural storytelling

Horizontally equivalent to 50 mm on full frame. A human-eye perspective - ideal for dialogue and storytelling. Balanced subject and background separation. Minimum focusing distance: 0.8 m

Macro + close-up

Horizontally equivalent to 66 mm on full frame. Suitable for food, jewelry details, and product advertising - combining close focusing with a cinematic perspective.Minimum focusing distance: 0.3 m

With a minimum focusing distance of 0.3 m and 0.5x magnification, the 100 mm lens captures the finest micro-details at close range. More than just close-ups - it delivers true anamorphic macro performance, combining the aesthetics of widescreen cinema with richly detailed macro shots.

Portrait + close-upStrong compression

Horizontally equivalent to 90 mm on full frame. Strong compression and excellent subject separation - ideal for isolating details and subjects from distracting backgrounds in narrative films.Minimum focusing distance: 0.8 m

1.5x constant squeeze ratio

Compared with 1.33x, 1.5x offers a wider horizontal viewing angle, 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

*Achieve a classic 2.4:1 widescreen look with minimal cropping.

Support for vertical shooting

The PL mount with 360° four-way rotational positioning supports both horizontal and vertical production. Combined with a vertical monitor, this enables a professional on-set monitoring system that transcends traditional aspect ratios and opens up a new cinematic vertical widescreen storytelling format.

3:2 sensor
(vertical 2:3)

Final output: 3:3 square
(with 1.5x de-squeeze / 1.5x De-Squeeze)

Large image circle

The IronStar lens series features a 46 mm image circle, ensuring full illumination of all full-frame sensors in mirrorless cameras. It delivers a clean, vignetting-free image and offers a truly immersive cinematic experience.

Image circle 46 mm

Full-frame

※ At maximum aperture

Sharp and smooth

The extremely fast T1.9 aperture ensures sharp performance in low-light conditions. Vertical bokeh gradients are smooth, with clear subjects and blurred backgrounds - effortlessly creating a shallow depth-of-field look rich in depth and artistic tension.

*35/45/60/75 mm - Maximum aperture T1.9

100 mm (0.5x macro)/135 mm - Maximum aperture T2.8

Cinematic atmosphere

Features two flare styles - blue and natural flare - that enhance the anamorphic look with cinematic aesthetics.

Classic blue flare

Ideal for creating cinematic looks in sci-fi, mystery, action, car scenes, urban environments, and much more.

Neutral flare

Presents light in its natural form - suitable for everyday shooting, emotional advertising, naturalistic and humanistic scenes, and more.

Outstanding optical performance

The IronStar lens series features 19 precision optical elements, including aspherical and cylindrical lenses, to reduce weight and produce sharp images with a subtle vintage glow - where modern technology meets classic cinematography aesthetics.

Aspherical lens

Precisely corrects spherical aberrations and chromatic aberrations at the edges, reduces weight, and improves image purity.

Cylindrical lens

Precise optical design with multiple cylindrical elements helps prevent distortion, dispersion, and loss of clarity.

Well-controlled focus breathing

Virtually no focus breathing during focus changes - ensuring image stability and consistency, essential for professional cinematic workflows.

100 mm T2.8

Unified set design

The lenses in the IronStar series are designed with a consistent appearance, matched color temperature, and color rendering characteristics to ensure a cohesive visual style throughout the creative process.

Broad compatibility

Filter thread: φ92 mm / 3.6 inches, CPL and VND filters included

Front diameter: φ95 mm / 3.7 inches, compatible with commercially available

Cinema matte boxes

Identical gear position

Designed for quick lens changes, making follow-focus tracking and accessory adjustments easier.

Compact and lightweight

The lightest lens weighs 1085 g / 2.39 lb

270° focus throw

Metallic texture

Compact and lightweight (repeated in the original)

The lightest weighs 1085 g / 2.39 lb

Interchangeable PL/EF mount module

Each lens comes with a native PL mount and includes an EF mount with the corresponding tools. Users can easily switch between mounts, significantly enhancing the lens's value and flexibility.

PL mount

EF mount

Innovative back-focus adjustment

Simply turn the back-focus adjustment ring instead of disassembling the mount or adding shims - for flexible and convenient operation.

Born for professional quality

Affordable anamorphic cinema lenses enable independent filmmakers, small teams, and commercial production groups to work with cinematic precision.

Free replacement within three years for non-human-caused damage (with valid proof of purchase). Lifetime paid repair service is available for human-caused damage (e.g., drops, water, or modifications).

*See the warranty card for more details.

What's included

Single lens

Lens (PL mount) * 1

EF mount module * 1

Lens bag * 1

Tool set * 1

Lens set

Hard-shell lens case * 1

92mm CPL filter * 1

Lens (PL mount) * 3

92mm VND * 1

EF mount module * 3

Tool set * 1

* Free CPL and VND filters are included only in the 3-lens set

Specifications

Model
75mm T1.9 1.5x
100mm T2.8 1.5x
135mm T2.8 1.5x

Image format coverage
Full Frame
Full Frame
Full Frame

Focal length
75 mm
100 mm
135 mm

Minimum aperture
T1.9
T2.8
T2.8

Min Aperture
T16
T16
T16

Lens construction
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 blades
18
16
12

Minimum focusing distance
0.8M (2ft 8in)
0.3M (1ft)
0.8M (2ft 8in)

Focusing method
MF
MF
MF

Maximum magnification
0.105x (V)
0.007x (H)
0.5x (V）
0.305x (H）
0.214x (V）
0.141x (H)

Angle of view (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

Maximum diameter
(mm/in)
φ95/3.74
φ95/3.74
φ95/3.74

Focus ring diameter
(mm/in)
φ89.6/3.53
φ89.6/3.53
φ89.6/3.53

Aperture ring diameter
(mm/in)
φ81.6/3.21
φ81.6/3.21
φ81.6/3.21

Length (mm/in)
(without 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)
(without 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

Image format coverage
Full Frame
Full Frame
Full Frame

Focal length
35mm
45mm
60mm

Maximum aperture
T1.9
T1.9
T1.9

Minimum aperture
T16
T16
T16

Lens construction
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 blades
16
16
16

Minimum
Focusing distance
0.65m (2ft 2in)
0.65m (2ft 2in)
0.78m (2ft 2in)

Focusing method
MF
MF
MF

Maximum
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)

Angle of view
(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

Maximum diameter
(mm/in)
φ95/3.7
φ95/3.7
φ95/3.7

Focus ring diameter
(mm/in)
φ89.6/3.5
φ89.6/3.5
φ89.6/3.5

Diameter
Aperture ring (mm/in)
φ81.6/3.2
φ81.6/3.2
φ81.6/3.2

Length (mm/in)
(without 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)
(without 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