Canon K35 18–85mm re-engineered by TLS

LS Canon K35 Re-Engineering Project

GTC sponsor True Lens Services is pleased to announce the latest development in its rehousing project of the Canon K35 lens series.

The 18mm, 24mm and 35mm lenses were the first in the range of Canon K35 lenses to be converted into TLS cam form. Classed as the most complicated to convert in the series, these three lenses required an intensive design and development process. The 55mm and 85mm were then completed with the fixed rear glass being housed in the stainless steel PL mount. The conversion process covers all variants in the K35 series.  The upgrade process includes:

  • New stainless steel PL mount
  • High-grade aluminium alloy and stainless steel housing
  • New cam form focus drive
  • High calibre focus and iris ring
  • Engraved dual focus scales
  • Standard 110mm front ring

Dual cam system

The 18mm, 24mm and 35mm Canon K35 lenses have a dual cam system to cover the floating element movement. The 55mm and 85mm are on a conventional single cam system, but incorporate a fixed rear element. All lenses in the series have an extended focus scale with 300 degrees of rotation.  

Cam driven focus system

Cam driven focus system and chassis style lens housing allow matte boxes and other accessories to be attached to the front of the Canon K35 lenses, without affecting focus movements. The benefit of zero backlash and image shift give accurate dual focus scales that repeat on direction change, giving wide spread and even markings throughout the distance scale.

Long serviceable life

Aluminium alloy, stainless steel, brass and robust construction guarantees a long serviceable life.

The results

The optical layout of the K35 lenses will remain unchanged and their unmistakable visuals are preserved as they were originally designed. With the mechanical drives giving more user control, it means that the whole series are now a perfect match for 6K digital camera systems used in the industry today.

The updated units are compatible with electronic drives, follow focus units and matte boxes. Focus pullers will appreciate the smooth feel and reliable movement that provide excellent results every time. Built-in quality and reliability ensures that all owners of TLS re-housed lenses can expect many years of continuous service.

About True Lens Services

True Lens Services (TLS) is recognised worldwide amongst high-end filmmakers for its bespoke lens innovation and reputable expertise in the design, manufacturing and servicing of lenses. Its comprehensives services include the conversion, servicing and repairing of lenses from a wide variety of manufacturers. Additional support services include the servicing of grip equipment, tripods, heads, jibs and other equipment that require regular, preventative maintenance.

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