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Using the Infrared Index - EF 28-300mm f/3.5-5.6L IS USM

Article ID: ART151906 | Date published: 05/22/2015 | Date last updated: 02/02/2016
 

Description

Using the Infrared Index - EF 28-300mm f/3.5-5.6L IS USM

Solution

Using the Infrared Index
EF 28-300mm f/3.5-5.6L IS USM

The infrared index corrects the focus setting when using monochrome infrared film. Focus on the subject manually, then adjust the distance setting by moving the focusing ring to the corresponding infrared index mark.

The intermediate markers between 300 and 100 are 200 mm. and 135mm and the marker between 100mm and 50mm is 70mm

Some EOS cameras cannot use infrared film. See the instructions for your EOS camera.

Important

  • The infrared index position is based on a wavelength of 800 nm.
  • Be sure to observe the manufacturer's instructions when using infrared film.
  • Use a red filter also when you take the picture.

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