Cooke Optics Limited Cinema Lens Technical Certificate

Cooke Optics Limited Cinema Lens Technical Certification

Yongchan Park | BLUE DOT EARTH

Certified in 2019

Certification Overview

This certificate confirms successful completion of a lens service training course organized by Cooke Optics Limited. This course is an official certification program for performing professional maintenance and technical services for Cooke cinema lens series.

Certified Lens Systems

Cooke 5/i
Cooke S4/i
miniS4/i
Anamorphic/i
S7/i
Panchro Classic

Key Training Content

Lens Service and Maintenance

Understanding the Cooke i-Technology system
Precision disassembly and assembly of cinema lenses
Inspection and repair of mechanical mechanisms

Inspection and Testing

Precision diagnosis of optical performance
Back Focus and Calibration
Lens optimization testing

Advanced Lens Understanding

Understanding Cooke Look characteristics and optical structure
Familiarity with technical specifications by lens lineup
Understanding the operation of specialized lenses (e.g., Anamorphic)

Technical Competencies

Professional maintenance for all Cooke cinema lens lineups
i-Technology integration and electronic component inspection capabilities
Precision lens diagnosis and repair in accordance with official guidelines

Certifying Body

Cooke Optics Limited (Signatory: Robert Howard, C.E.O.)

Certification Course

Service Training Course (Cooke Cinema Lenses)

Certification Date

July 2019

Professionalism and Application

This certification signifies the completion of official technical training by Cooke Optics, a world-leading cinema lens manufacturer, and verifies the professional competence to perform precise maintenance and technical support for high-end cinema lenses.

Manufacturer's Official Service Certification

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Through our latest 2024 advanced course, we demonstrate our proficiency in precise disassembly, assembly, and optical optimization of the entire Signature Prime series.

Canon Certified Service Professional (2023 Certified)

We maintain optimal optical condition for broadcasting and cinema lenses through servo module inspection, back focus adjustment, and other services.

ARRI / ZEISS Level 4 Official Service Certification (2020)

From master anamorphic to CP.3, we guarantee component replacement and precise FFD (Flange Focal Distance) adjustment.

Angénieux Official Technical Training Certification (2019)

We provide specialized maintenance services for world-renowned cinema zoom lenses, including the Optimo and EZ series.

HAWK Advanced Technical Certification (2025)

We possess advanced capabilities to precisely diagnose and maintain world-class anamorphic lens mechanisms.

Leitz Certified Cinema Lens Technician

We possess premium lens maintenance and diagnostic capabilities, verified through official certification from Ernst Leitz Wetzlar of Germany.

Leitz Official Advanced Technician (Advanced Certification)

We are authorized experts in repairing the mechanisms and optimizing the optical performance of high-end lenses such as Thalia and Summilux-C.

Cooke Official Cinema Lens Technician

Through official certification from the world-renowned cinema lens manufacturer Cooke, we demonstrate our professional diagnostic and repair capabilities across their entire product lineup.

Core Service Values

To ensure your cinematic vision is never limited by the technical constraints of lenses, BLUE DOT EARTH will be your most reliable partner.

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Back Focus Optimization

Fine-tune the distance to the sensor in 0.01mm increments to achieve perfect infinity focus.

Mechanical Overhaul

Smooth and precise operation is restored through precise lubrication and torque adjustment of the helicoid and aperture unit.

Performance Verification

After repair, it undergoes rigorous optical testing to ensure like-new resolution and light transmittance.

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