Enso lenses - Technical data

ARRI Ensō Primes	10.5 mm	14 mm	18 mm	21 mm
Optical Parameters
Focal length	10.5 mm	14 mm	18 mm	21 mm
T-stop	T2.8	T2.5	T2.1	T2.1
Close focus	0.27 m / 10.5"	0.27 m / 10.5"	0.20 m / 8"	0.22 m / 8.5"
Length	141 mm / 5.6"	141 mm / 5.6"	117 mm / 4.6"	117 mm / 4.6"
Weight	2.3 kg / 5.1 lb	2.0 kg / 4.4 lb	1.4 kg / 3.1 lb	1.4 kg / 3.1 lb
Front diameter	134 / 156 mm	134 / 156 mm	95 mm	95 mm
Magnification ratio at MOD	1:10	1:8	1:4	1:4
Entrance pupil position (related to image plane, in direction to object plane)	160.3 mm / 6.3"	151.9 mm / 6"	134.3 mm / 5.3"	131.6 mm / 5.2"
Angle of view H-V-D for LF Open Gate	120,8° / 101,3° / 130°	105,2° / 84,6 ° / 116°	92,3° / 71,4° / 103,5°	83,2° / 63,3° / 94,4°
Physical Dimensions
Lens barrel	Aluminum	Aluminum	Aluminum	Aluminum
Focus barrel rotation	318°	318°	318°	318°
Iris barrel rotation	48°	48°	48°	48°
Gear	Module 0.8	Module 0.8	Module 0.8	Module 0.8
Interfaces
Lens mount	LPL	LPL	LPL	LPL
Lens data system	LDS-2 or Cooke/i	LDS-2 or Cooke/i	LDS-2 or Cooke/i	LDS-2 or Cooke/i
Electronic magnetic rear filter interface	yes	yes	yes	yes

ARRI Ensō Primes	24 mm	28 mm	32 mm	40 mm
Optical Parameters
Focal length	24 mm	28 mm	32 mm	40 mm
T-stop	T2.1	T2.1	T2.1	T2.1
Close focus	0.23 m / 9"	0.23 m / 9"	0.25 m / 10"	0.28 m / 11"
Length	117 mm / 4.6"	117 mm / 4.6"	117 mm / 4.6"	117 mm / 4.6"
Weight	1.4 kg / 3.1 lb	1.5 kg / 3.3 lb	1.4 kg / 3.1 lb	1.3 kg / 2.9 lb
Front diameter	95 mm	95 mm	95 mm	95 mm
Magnification ratio at MOD	1:4	1:4	1:4	1:4
Entrance pupil position (related to image plane, in direction to object plane)	131.8 mm / 5.2"	118.8 mm / 4.7"	119.5 mm / 4.7"	117.2 mm / 4.6"
Angle of view H-V-D for LF Open Gate	75,2° / 56,44° / 86,1°	66,9° / 49,4° / 77,3°	59,7° / 43,6° / 69,8°	49,6° / 35,6° / 58,7°
Physical Dimensions
Lens barrel	Aluminum	Aluminum	Aluminum	Aluminum
Focus barrel rotation	318°	318°	318°	318°
Iris barrel rotation	48°	48°	48°	48°
Gear	Module 0.8	Module 0.8	Module 0.8	Module 0.8
Interfaces
Lens mount	LPL	LPL	LPL	LPL
Lens data system	LDS-2 or Cooke/i	LDS-2 or Cooke/i	LDS-2 or Cooke/i	LDS-2 or Cooke/i
Electronic magnetic rear filter interface	yes	yes	yes	yes

ARRI Ensō Primes	47 mm	58 mm	75 mm	105 mm
Optical Parameters
Focal length	47 mm	58 mm	75 mm	105 mm
T-stop	T2.1	T2.1	T2.1	T2.1
Close focus	0.32 m / 12.5"	0.36 m / 14"	0.43 m / 17"	0.59 m / 23.5"
Length	117 mm / 4.6"	117 mm / 4.6"	123 mm / 4.8"	123 mm / 4.8"
Weight	1.3 kg / 2.9 lb	1.5 kg / 3.3 lb	1.5 kg / 3.3 lb	1.6 kg / 3.5 lb
Front diameter	95 mm	95 mm	95 mm	95 mm
Magnification ratio at MOD	1:4	1:4	1:4	1:4
Entrance pupil position (related to image plane, in direction to object plane)	124.5 mm / 4.9"	115.6 mm / 4.6"	119.9 mm / 4.7"	122.7 mm / 4.8"
Angle of view H-V-D for LF Open Gate	42,8° / 30,5° / 51,1°	35,12° / 24,8° / 42,1°	27,6° / 19,4° / 33,4°	19,8° / 13,9° / 23,9°
Physical Dimensions
Lens barrel	Aluminum	Aluminum	Aluminum	Aluminum
Focus barrel rotation	318°	318°	318°	318°
Iris barrel rotation	48°	48°	48°	48°
Gear	Module 0.8	Module 0.8	Module 0.8	Module 0.8
Interfaces
Lens mount	LPL	LPL	LPL	LPL
Lens data system	LDS-2 or Cooke/i	LDS-2 or Cooke/i	LDS-2 or Cooke/i	LDS-2 or Cooke/i
Electronic magnetic rear filter interface	yes	yes	yes	yes

ARRI Ensō Primes	150 mm	250 mm	250 mm + 1.4x Extender	250 mm + 2.0x Extender
Optical Parameters
Focal length	150 mm	250 mm	350 mm	500 mm
T-stop	T2.5	T2.8	T4.0	T5.8
Close focus	0.77 m / 30.5"	1.3 m / 4'2"	1.33 m / 4'4"	1.34 m / 4'5"
Length	152 mm / 6.0"	207 mm / 8.1"	241 mm / 9.5"	251 mm / 9.9"
Weight	1.9 kg / 4.2 lb	2.9 kg / 6.4 lb	3.5 kg / 7.8 lb	3.6 kg / 7.9 lb
Front diameter	95 mm	114 mm	114 mm	114 mm
Magnification ratio at MOD	1:4	1:4	1:2.9	1:2
Entrance pupil position (related to image plane, in direction to object plane)	131.5 mm / 5.2"	128.3 mm / 5.1"	161.0 mm / 6.3"	172.8 mm / 6.8"
Angle of view H-V-D for LF Open Gate	13,9° / 9,7° / 16,9°	8,4° / 5,9° / 10,2°	6° / 4,2° / 7,3°	4,2° / 2,9° / 5,1°
Physical Dimensions
Lens barrel	Aluminum	Aluminum	Aluminum	Aluminum
Focus barrel rotation	318°	318°	318°	318°
Iris barrel rotation	47.5°	48°	48°	48°
Gear	Module 0.8	Module 0.8	Module 0.8	Module 0.8
Interfaces
Lens mount	LPL	LPL	LPL	LPL
Lens data system	LDS-2 or Cooke/i	LDS-2 or Cooke/i	LDS-2 or Cooke/i	LDS-2 or Cooke/i
Electronic magnetic rear filter interface	yes	yes	yes	yes

Compatibility of Ensō lenses

ARRI Ensō lenses are equipped with the LPL (Large Positive Locking) lens mount. A wider diameter and shorter flange focal depth allow LPL lenses to be small and lightweight, with a fast T-stop and pleasing bokeh—a combination of features that would not be possible with the old PL lens mount. Careful testing is required when using Ensō Vintage Elements with third-party LPL mounts.