ARRI Signature Primes

Designed for use with full-frame, large-format sensors, the versatile ARRI Signature Primes also cover Super 35. Dedicated LF Open Gate, and Super 35 Open Gate magnetic format masks enable you to switch between formats, and are included with the lens. Stockings, nets, and voile can be used for diffusion when mounted in the Signature Prime’s rear net holder. Eleven iris blades produce smooth, rounded bokeh effects, and a telecentric design minimizes breathing. The LDS-2 lens data system is backwards-compatible with ARRI’s LDS-1, and communicates with Cooke’s /i Technology.

Constructed with magnesium housings and aluminum gear rings, each Signature Prime is lightweight, water-resistant, and features focus marks in feet. Anti-reflective coatings, light baffles, and light traps help to minimize any internal barrel flare

SPECS:

Lens Mount: LPL Mount 

Maximum Aperture: T1.8 (200mm – T2.5)

Front Diameter: 114mm

Lenses Available: 12mm/ 15mm/ 18mm/ 21 mm/ 25 mm/ 29mm/ 35mm/ 40mm/ 47mm/ 58mm/ 75mm/ 95mm/ 125mm/ 150mm/ 200mm

ARRI Ensō Prime Lenses

Technical Specifications

  • Format Compatibility: Full-frame (Large Format) sensors
  • Lens Mount: ARRI LPL with LDS-2 and Cooke /i lens data protocols
  • Aperture Range:
    • T2.1 for most focal lengths
    • T2.5 for 14mm and 150mm
    • T2.8 for 10.5mm and 250mm
  • Focal Lengths Available:
  • Close Focus Capability: 1:4 magnification ratio; for example, the 32mm lens focuses as close as 10 inches (25.4 cm)
  • Front Diameter: 95mm for most lenses, facilitating easy matte box compatibility.

Optical Characteristics

  • Native Look: Delivers natural image detail with stunning bokeh, gentle focus fall-off, and minimal focus breathing
  • Ensō Vintage Elements: Optional rear-mounted magnetic filters that allow cinematographers to modify the lens’s optical characteristics, offering three positive and three negative elements to achieve various vintage looks
  • Metadata Integration: Built-in chips provide real-time lens data (focus, iris, zoom) to compatible cameras, aiding in on-set monitoring and post-production workflows

ARRI Enso 18mm T2.1 Prime Lens

T-stop:  T2.1

Length: 117mm/4.6”

Front Diameter: 95mm

Weight: 1.4kg/ 3.1 lb

Close Focus: 0.2/ 8″

ARRI Enso 21mm T2.1 Prime Lens

ARRI Ensō Primes 21 mm
Optical Parameters
Focal length  21 mm
T-stop T2.1
Close focus 0.22 m / 8.5″
Length 117 mm / 4.6″
Weight 1.4 kg / 3.1 lb
Front diameter 95 mm
Magnification ratio at MOD 1:4
Entrance pupil position 
(related to image plane, in direction to object plane)
131.6 mm / 5.2″
Angle of view H-V-D for LF Open Gate 83,2° / 63,3° / 94,4°
Physical Dimensions
Lens barrel Aluminum
Focus barrel rotation 318°
Iris barrel rotation 48°
Gear Module 0.8
Interfaces
Lens mount LPL
Lens data system LDS-2 or Cooke/i
Electronic magnetic rear filter interface yes

ARRI Enso 24mm T2.1 Prime Lens

ARRI Ensō Primes 24 mm
Optical Parameters
Focal length 24 mm
T-stop T2.1
Close focus 0.23 m / 9″
Length 117 mm / 4.6″
Weight 1.4 kg / 3.1 lb
Front diameter 95 mm
Magnification ratio at MOD 1:4
Entrance pupil position 
(related to image plane, in direction to object plane)
131.8 mm / 5.2″
Angle of view H-V-D for LF Open Gate 75,2° / 56,44° / 86,1°
Physical Dimensions
Lens barrel Aluminum
Focus barrel rotation 318°
Iris barrel rotation 48°
Gear Module 0.8
Interfaces
Lens mount LPL
Lens data system LDS-2 or Cooke/i
Electronic magnetic rear filter interface yes

ARRI Enso 28mm T2.1 Prime Lens

ARRI Ensō Primes 28 mm
Optical Parameters
Focal length 28 mm
T-stop T2.1
Close focus 0.23 m / 9″
Length 117 mm / 4.6″
Weight 1.5 kg / 3.3 lb
Front diameter 95 mm
Magnification ratio at MOD 1:4
Entrance pupil position 
(related to image plane, in direction to object plane)
118.8 mm / 4.7″
Angle of view H-V-D for LF Open Gate 66,9° / 49,4° / 77,3°
Physical Dimensions
Lens barrel Aluminum
Focus barrel rotation 318°
Iris barrel rotation 48°
Gear Module 0.8
Interfaces
Lens mount LPL
Lens data system LDS-2 or Cooke/i
Electronic magnetic rear filter interface yes

ARRI Enso 32mm T2.1 Prime Lens

ARRI Ensō Primes 32 mm
Focal length 32 mm
T-stop T2.1
Close focus 0.25 m / 10″
Length 117 mm / 4.6″
Weight 1.4 kg / 3.1 lb
Front diameter 95 mm
Magnification ratio at MOD 1:4
Entrance pupil position 
(related to image plane, in direction to object plane)
119.5 mm / 4.7″
Angle of view H-V-D for LF Open Gate 59,7° / 43,6° / 69,8°
Physical Dimensions
Lens barrel Aluminum
Focus barrel rotation 318°
Iris barrel rotation 48°
Gear Module 0.8
Interfaces
Lens mount LPL
Lens data system LDS-2 or Cooke/i
Electronic magnetic rear filter interface yes

ARRI Enso 47mm T2.1 Prime Lens

ARRI Ensō Primes 47 mm
Focal length 47 mm
T-stop T2.1
Close focus 0.32 m / 12.5″
Length 117 mm / 4.6″
Weight 1.3 kg / 2.9 lb
Front diameter 95 mm
Magnification ratio at MOD 1:4
Entrance pupil position 
(related to image plane, in direction to object plane)
124.5 mm / 4.9″
Angle of view H-V-D for LF Open Gate 42,8° / 30,5° / 51,1°
Physical Dimensions
Lens barrel Aluminum
Focus barrel rotation 318°
Iris barrel rotation 48°
Gear Module 0.8
Interfaces
Lens mount LPL
Lens data system LDS-2 or Cooke/i
Electronic magnetic rear filter interface yes

ARRI Enso 58mm T2.1 Prime Lens

ARRI Ensō Primes 58 mm
Optical Parameters
Focal length 58 mm
T-stop T2.1
Close focus 0.36 m / 14″
Length 117 mm / 4.6″
Weight 1.5 kg / 3.3 lb
Front diameter 95 mm
Magnification ratio at MOD 1:4
Entrance pupil position 
(related to image plane, in direction to object plane)
115.6 mm / 4.6″
Angle of view H-V-D for LF Open Gate 35,12° / 24,8° / 42,1°
Physical Dimensions
Lens barrel Aluminum
Focus barrel rotation 318°
Iris barrel rotation 48°
Gear Module 0.8
Interfaces
Lens mount LPL
Lens data system LDS-2 or Cooke/i
Electronic magnetic rear filter interface yes

ARRI Enso 75mm T2.1 Prime Lens

ARRI Ensō Primes 75 mm
Optical Parameters
Focal length 75 mm
T-stop T2.1
Close focus 0.43 m / 17″
Length 123 mm / 4.8″
Weight 1.5 kg / 3.3 lb
Front diameter 95 mm
Magnification ratio at MOD 1:4
Entrance pupil position 
(related to image plane, in direction to object plane)
119.9 mm / 4.7″
Angle of view H-V-D for LF Open Gate 27,6° / 19,4° / 33,4°
Physical Dimensions
Lens barrel Aluminum
Focus barrel rotation 318°
Iris barrel rotation 48°
Gear Module 0.8
Interfaces
Lens mount LPL
Lens data system LDS-2 or Cooke/i
Electronic magnetic rear filter interface yes

ARRI Enso 105mm T2.1 Prime Lens

ARRI Ensō Primes 105 mm
Optical Parameters
Focal length 105 mm
T-stop T2.1
Close focus 0.59 m / 23.5″
Length 123 mm / 4.8″
Weight 1.6 kg / 3.5 lb
Front diameter 95 mm
Magnification ratio at MOD 1:4
Entrance pupil position 
(related to image plane, in direction to object plane)
122.7 mm / 4.8″
Angle of view H-V-D for LF Open Gate 19,8° / 13,9° / 23,9°
Physical Dimensions
Lens barrel Aluminum
Focus barrel rotation 318°
Iris barrel rotation 48°
Gear Module 0.8
Interfaces
Lens mount LPL
Lens data system LDS-2 or Cooke/i
Electronic magnetic rear filter interface yes

ARRI Enso 150mm T2.5 Prime Lens

ARRI Ensō Primes 150 mm
Optical Parameters
Focal length 150 mm
T-stop T2.5
Close focus 0.77 m / 30.5″
Length 152 mm / 6.0″
Weight 1.9 kg / 4.2 lb
Front diameter 95 mm
Magnification ratio at MOD 1:4
Entrance pupil position 
(related to image plane, in direction to object plane)
131.5 mm / 5.2″
Angle of view H-V-D for LF Open Gate 13,9° / 9,7° / 16,9°
Physical Dimensions
Lens barrel Aluminum
Focus barrel rotation 318°
Iris barrel rotation 47.5°
Gear Module 0.8
Interfaces
Lens mount LPL
Lens data system LDS-2 or Cooke/i
Electronic magnetic rear filter interface yes

ARRI Enso Vintage Elements Kit

Ensō Vintage Elements Focal Length

multiplier 

Focal Length

multiplier [%]

Exposure change

(stops) 

Open aperture 

for T2.1 lens

Ensō VE 350P 0.934 6.6 0.20 1.96
Ensō VE 200P 0.959 4.1 0.13 2.01
Ensō VE 100P 0.979 2.1 0.06 2.06
No Filter 1 1 0 2.1
Ensō VE 100N 1.03 3 -0.08 2.16
Ensō VE 200N 1.063 6.3 -0.17 2.23
Ensō VE 350N 1.099 9.9 -0.28 2.31

ARRI Signature Prime 18mm T1.8 Lens

Focal Length
18mm
Maximum Aperture
T1.8
Lens Mount
ARRI LPL
Lens Format Coverage
Large Format (46 mm Image Circle)
Filter Thread
No
Image Stabilization
No
Electronic Communication
Yes
Focal Length
18mm
Maximum Aperture
T1.8
Minimum Aperture
T22
Lens Mount
ARRI LPL
Lens Format Coverage
Large Format (46 mm Image Circle)
Angle of View
ARRI LF Open Gate
Horizontal: 91.4°
ARRI LF Open Gate
Diagonal: 102.6°
Focus Scales
Imperial
Filter Thread
No
Minimum Focus Distance
From Camera Sensor: 13.78″ / 0.35 m
Magnification
1:9.2 Macro Reproduction Ratio
0.11x Magnification
Aperture/Iris Blades
11
Image Stabilization
No
Gear Standard
0.8 MOD
Electronic Communication
Yes
Camera Connection
LEMO 4-Pin (Cooke /i Technology Lens Data / ARRI LDS) Data
Diameter
Maximum: 4.53″ / 115.06 mm
Front: 4.5″ / 114 mm
Length
7.01″ / 178.05 mm
Weight
4.41 lb / 2 kg

ARRI Signature Prime 25mm T1.8 Lens

Focal Length
25mm
Maximum Aperture
T1.8
Lens Mount
ARRI LPL
Lens Format Coverage
Large Format (46 mm Image Circle)
Filter Thread
No
Image Stabilization
No
Electronic Communication
Yes
Focal Length
25mm
Maximum Aperture
T1.8
Minimum Aperture
T22
Lens Mount
ARRI LPL
Lens Format Coverage
Large Format (46 mm Image Circle)
Angle of View
ARRI LF Open Gate
Horizontal: 73°
Diagonal: 84°
Focus Scales
Imperial
Filter Thread
No
Minimum Focus Distance
From Camera Sensor: 13.78″ / 0.35 m
Magnification
1:7.1 Macro Reproduction Ratio
0.14x Magnification
Aperture/Iris Blades
11
Image Stabilization
No
Gear Standard
0.8 MOD
Electronic Communication
Yes
Camera Connection
LEMO 4-Pin (Cooke /i Technology Lens Data / ARRI LDS) Data
Diameter
Maximum: 4.53″ / 115.06 mm
Front: 4.5″ / 114 mm
Length
7.01″ / 178.05 mm
Weight
4.19 lb / 1.9 kg