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ARRI/FUJINON Alura Studio Zoom T2.6

Name	ARRI/FUJINON Alura Zoom 18-80		ARRI/FUJINON Alura Zoom 45-250
Lens Mount (1)	PL		PL
Focal Length Wide	18		45
Focal Length Long	80		250
Focal Length Ratio	4,4		5,6
Aperture	T2.6 - T22		T2.6 - T22
Close Focus (2)	0.7 m / 24		1.2 m / 311
Magnification Ratio (3)	1 : 5.5		1 : 4
Length (4)	285 mm / 11.2		370 mm / 14.6
Front Diameter (5)	134 mm / 5.3		134 mm / 5.3
Maximum Housing Diameter	134 mm / 5.3		153 mm / 6
Weight (Kg)	4.7		7.5
Weight (lb)	10.4		16.5
Entrance Pupil (6)	at 18 mm	264.0 mm / 10.4"	at 18 mm	234.4 mm / 9.6"
	at 50 mm	231.6 mm / 9.1"	at 50 mm	2.0 mm / 0.1"
	at 80 mm	213.9 mm / 8.4"	at 80 mm	-101.5 mm / -4.0"
Angle of View H-V-D
Normal 35 (8)
ID = 27.20 mm (7)
	at 18 mm	62.8° - 48.0° - 74.1°	at 18 mm	27.5° - 20.2° - 33.6°
	at 50 mm	24.8° - 18.2° - 30.4°	at 50 mm	8.4° - 6.1° - 10.4°
	at 80 mm	15.6° - 11.4° - 19.3°	at 80 mm	5.0° - 3.7° - 6.2°
Angle of View H-V-D
ALEXA/D-21 HD (9)
ID = 27.26 mm (7)	at 18 mm	66.8° - 40.7° - 74.3°	at 18 mm	29.6° - 16.9° - 33.7°
	at 50 mm	26.7° - 15.2° - 30.5°	at 50 mm	9.1° - 5.1° - 10.4°
	at 80 mm	16.9° - 9.5° - 19.3°	at 80 mm	5.4° - 3.1° - 6.2°
Angle of View H-V-D
ALEXA 2K (10)
ID = 29.08 mm (7)	at 18 mm	70.3° - 43.2° - 77.9°	at 18 mm	31.4° - 18.0° - 35.8°
	at 50 mm	28.4° - 16.2° - 32.4°	at 50 mm	9.7° - 5.4° - 11.1°
	at 80 mm	18.0° - 10.2° - 20.6°	at 80 mm	5.8° - 3.3° - 6.7°
Angle of View H-V-D
DIN Super 35 (11)
ID = 30.00 mm (7)	at 18 mm	67.4° - 53.1° - 79.6°	at 18 mm	29.9° - 22.6° - 36.9°
	at 50 mm	27.0° - 20.4° - 33.4°	at 50 mm	9.1° - 6.9° - 11.4°
	at 80 mm	17.1° - 12.8° - 21.2°	at 80 mm	5.5° - 4.1° - 6.9°

Operation Temperature: -10°C to +50°C / +14°F to +122°F

Storage/Transport Temperature: -20C to +60°C / -4°F to +140°F

(1) Positive locking 54 mm stainless steel lens mount
(2) Close focus is measured from the film/sensor plane
(3) Magnification ratio is the relationship of the size of an object on the film/sensor plane (first number) to the size of that object in real life (second number) at the close focus and the telephoto zoom setting
(4) Length is measured from the lens mount to the front of the lens housing
(5) Diameter of the lens/matte box interface
(6) The distance from the entrance pupil to the film/sensor plane. Positive numbers indicated an entrance pupil in front, negative numbers indicated an entrance pupil behind the film/sensor plane. The entrance pupil (often mistakenly called "nodal point") is the center of perspective; moving the camera/lens system around the center of the entrance pupil prevents parallax errors. While largerly irrelevant for live action, this measurement is important for special effects work.
(7) The image diameter (ID) is the diameter of the image circle needed for the respective format.
(8) Horizontal (H), vertical (V) and diagonal (D) angles of view for a Normal 35 Academy camera aperture (aspect ratio 1.37:1, dimensions 22 mm x 16 mm / 0.866" x 0.630")
(9) Horizontal (H), vertical (V) and diagonal (D) angles of view for the ALEXA/D-21 HD camera aperture (aspect ratio 1.78:1, 2880 x 1620 sensor pixels, dimensions 23.76 mm x 13.37mm / 0.935" x 0.526")
(10) Horizontal (H), vertical (V) and diagonal (D) angles of view for the ALEXA 2K camera aperture (aspect ratio 1.78:1, 3072 x 1728 sensor pixels, dimensions 25.34 mm x 14.26 mm / 0.998" x 0.561")
(11) Horizontal (H), vertical (V) and diagonal (D) angles of view for a DIN Super 35 Silent camera aperture (aspect ratio 1.33:1, dimensions 24 mm x 18 mm / 0.944" x 0.709")

*Data from ARRI*

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ARRI/FUJINON Alura Studio Zoom T2.6

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