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Alura Extender

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Category: Zoom Lenses
Brand: ARRI
Code: Alura Extender

The new Alura LDS Extender 1.4x and 2.0x are the perfect products to extend the focal length range of zoom and prime lenses. These additional lens systems which can be easily mounted between the camera's PL mount and the zoom or prime lens PL mount are small and lightweight and have the ability to transfer lens metadata from appropriate lenses based on the protocol of the ARRI Lens Data System (LDS) to the camera. Alexa Plus cameras can identify the extender type automatically and show the right lens data.

The two extenders are specially designed for the ARRI/Fujinon Alura zoom lenses and multiply the focal length of the base lens by a factor of 1.4 or 2.0 with only one or two T-stops loss at full aperture. The combination with the Alura zoom lenses gives a highly competitive solution over expensive long range zoom lenses with only little or no influence to the optical quality of the Alura zoom lenses.

The combination of Alura zooms and Alura LDS Extenders gives a huge focal length bridge from 15.5mm to 500mm:

Alura T2.6/18-85mm + Alura LDS Extender 1.4x = Alura T3.7/25-112 mm
Alura T2.6/18-85mm + Alura LDS Extender 2.0x = Alura T5.2/36-160 mm
Alura T2.6/45-250mm + Alura LDS Extender 1.4x = Alura T3.7/63-350 mm
Alura T2.6/45-250mm + Alura LDS Extender 2.0x = Alura T5.2/90-500 mm
     
Alura T2.8/15.5-45mm + Alura LDS Extender 1.4x = Alura T4.0/22-63 mm
Alura T2.8/15.5-45mm + Alura LDS Extender 2.0x = Alura T5.6/31-90 mm
Alura T2.8/30-80mm + Alura LDS Extender 1.4x = Alura T4.0/42-112 mm
Alura T2.8/30-80mm + Alura LDS Extender 2.0x = Alura T5.6/60-160 mm
     

Mechanical dimensions (in approximation)

 

  1.4X 2.0X
Weight (g) 300 530
Diameter (mm) without knobs 77 77
Length (mm) without knobs 44 60

Main Features

  • Multiplies the focal length by a factor of 1.4x or 2.0x with only one or two T-stops loss at full aperture

  • Transfer of LDS metadata signal

  • Automatic extender identification with Alexa Plus cameras

  • Matches other ARRI/Fujinon or ARRI/Zeiss Lenses

  • Alura Extender

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