15mm Arri Signature Prime T1.8
The 15mm ARRI Signature Prime T1.8 is a premium wide-angle cinema lens designed to cover large-format sensors, delivering outstanding edge-to-edge clarity and minimal distortion. With a fast T1.8 aperture, this lens excels in low-light conditions while offering beautiful depth-of-field control. It features the ARRI LPL LDS-2 mount, ensuring seamless integration with ARRI’s LDS-1 and Cooke /i metadata systems, making it highly adaptable for modern cinema workflows.
A 114mm front diameter allows compatibility with standard matte boxes and accessories, while the 11-blade iris delivers exceptionally smooth, round bokeh for a cinematic aesthetic. The aperture range of T1.8 to T22 provides versatile exposure control, giving filmmakers flexibility in a variety of lighting environments.
Focal Length
18 mm
S35 Equ. Focal
| Alexa LF 16:9 to | |||
| Signature Prime | Alexa 2.8k (mm) | Alexa 3.2k (mm) | Alexa 3.4k (mm) |
| 18mm | 14 | 15 | 16 |
| Conversion Factor | 1.33x | 1.21x | 1.12x |
| Alexa LF Open Gate to |
|||
| Signature Prime | Alexa 2.8k (mm) | Alexa 3.2k (mm) | Alexa 3.4k (mm) |
| 18mm | 12 | 13 | 14 |
| Conversion Factor | 1.54x | 1.40x | 1.30x |
Angle of View
91.4° / 71.0° / 102.6° (*H-V-D for LF Open Gate)
Close Focus
0.35 m / 14″
Front Diameter
114 mm
Image Circle
44.7 mm
Lens Mount
LPL
Length
178 mm / 7.01″
Weight
2.0 kg / 4.4 lb
