Canon TS-E 90mm f/2.8 User Manual download pdf (Page 12)

ENG-11

The depth of field is the distance in front of and

behind the plane of focus on the subject that

appears sharp. The depth of field is indicated by

the area between the depth-of-field scale lines

below the distance scale. The numbers on the

scale are F values, and for example, if the

shooting distance is 1.5 m and the aperture is

f/8, the area in focus will extend from about 1 m

to 3 m.

The infrared index corrects the focus setting

when using monochrome infrared film. Focus on

the subject in MF, then adjust the distance

setting by moving the focusing ring to the

corresponding infrared index mark.

6. Depth-of-Field Scale

(TS-E24mm f/3.5L)

7. Infrared Index

(TS-E24mm f/3.5L)

● The depth-of-field scale is only valid when the

tilt scale is set to the “0” position.

● The depth-of-field scale is an approximate

indicator.

● 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.

Some EOS cameras cannot use infrared film. See

the instructions for your EOS camera.

02-7544_ENG 10.2.13 9:42 AM Page 11

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Canon TS-E 90mm f/2.8 User Manual Page 12