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Showing posts with label Canon published interview with EF 400mm f/2.8L IS III and EF 600mm f/4L IS III engineers. Show all posts
Showing posts with label Canon published interview with EF 400mm f/2.8L IS III and EF 600mm f/4L IS III engineers. Show all posts

Sunday, November 10, 2019

Canon released new Firmwares for EOS-90D camera, EF 400mm f/2.8L IS III, EF 600mm f/4L IS III lenses




Canon has released new firmware Version 1.1.1 for the Canon 90D to add 24p to 4K and Full HD.

Canon EOS 90D Firmware v1.1.1 incorporates the following enhancements and fixes :

The option to capture both 4K and Full HD movies in the frame rate of 23.98p has been newly added.
Fixes an issue where error code “Err 01” may be displayed when using EF85mm F1.8 USM or EF100mm F2 USM lenses.

Download EOS 90D firmware 1.1.1




Canon has released new firmware for EF 400mm f/2.8L IS III USM and EF 600mm f/4L IS III USM.

Firmware Version 1.1.2 incorporates the following enhancements :

  • Increases the manual focus speed when the manual focus speed switch is set to 1 or 2. *The speed when the switch is set to 3 (slowest speed) will be unchanged.
  • Improves the image stabilization effect during handheld shooting with a slow shutter speed when used with EOS 5D Mark IV, EOS 6D, or EOS R.


*Enables a full-time manual focus function during Servo AF when used with the EOS-1D X Mark II.

The lens must be sent to the Factory Service Center in order for this function to be enabled.

If the lens’ firmware is already Version 1.1.2, it is not necessary to update the firmware.

The lens firmware version can be checked from the camera’s menu.

Download the firmware updates : EF 400mm f/2.8L IS III | EF 600mm f/4L IS III

Tuesday, January 29, 2019

Canon USA published interview with EF 400mm f/2.8L IS III and EF 600mm f/4L IS III engineers




The Canon EF 400mm f/2.8L IS III and EF 600mm f/4L IS III Super Telephoto lenses were announced September 5, 2018. An interview with the developers of the new generation lenses was published by Canon USA. The main improvements of the new lenses are weight reduction, improved IS performance and Image Quality improvement.

The Canon engineers tackled and overcame the following challenges :

  • Retooled the lens from the ground up for an overall balanced weight
  • Improved mobility and portability, with reduced weight
  • A new optical system
  • Optical, Mechanical, Electrical and Production difficulties
  • Reduce the number of components
  • Reduce weight and increase strength
  • A new high-strength alloy for the lens barrel
  • The latest gyro sensor is employed
  • Best in class IS performance
  • Lens can handle vibration when using a tripod
  • Improved lens focus drive speed when an EF extender is attached
  • New, state of the art coating 

You can download and read the entire interview here. My readers know me as The Wildlife Ho-tographer and I have used Canon equipment for over three decades. Trying to decide which of these two lenses to add to my inventory. Leaning towards the EF 400mm Series III since it is slightly shorter and lighter.

Throughout the years, I have embarked on many worldwide photo shoots. Size and weight of equipment are major consideration on jeeps and bush planes. You can follow my travels on FacebookInstagram and Twitter and see my equipment bag and works on MichaelDanielHo.com