Using infrared film – Canon T 60 User Manual
Page 63
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6. Using infrared Film
When using black-and-white infrared film
— film which is sensitive to infrared light
rays — you must slightly adjust the focus
before taking a picture. This is necessary
because infrared light rays have longer
wavelengths and thus focus on a plane
slightly behind that of ordinary visible light
rays.
You can easily adjust the focus using the
red infrared index on the lens barrel.
■ When using blaok-and-white infrared
film, it is necessary to attach a deep
red filter to the lens to keep out the
visible light rays. For details on the
type of filter to use, refer to the in
struction sheet provided with the film.
1) Attach a deep red filter to the lens
2) Look through the viewfinder and fo
cus the subject.