Owner's Manual

8. Infinity Compensation Mark
To compensate for shifting of the infinite focus arising from changes in
temperature, the distance scale can be rotated slightly past the normal infinity
focus mark.
To ensure accurate focus, look through the viewfinder and check the focus before
shooting.
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9. Infrared Index (Not available for all cameras)
The figures
in red above the distance scale are the infrared index. The infrared
index
is used when black-and-white infrared film is used. After achieving focus,
shift the current distance setting of the distance scale to the infrared index mark.
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! - The position of the infrared index is based on a wavelength of 800 nm. The position :
: of the infrared index may differ slightly depending on the infrared film used. We :
! recommend that you take several shots and shift the distance setting to slightly !
! different positions each time. !
: -Infrared film is not recommended for same EOS cameras. Check your camera :
: instruction manual.
!
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