Canon EF-S 17-85mm f4-5.6 IS USM - Manual (Page 9)

ENG-8
6 Filters (Sold Separately)
You can attach filters to the filter mounting
thread on the front of the lens.
¡ Only one filter may be attached.
¡ If you need a polarizing filter, use the Canon
Circular Polarizing Filter (67mm).
¡ To adjust the polarizing filter, first remove the
lens hood.
7 Extension Tubes (Sold Separately)
You can attach Extension Tube EF12 II or EF25
II for magnified shots. The shooting distance and
magnification are shown below.
Camera-to-Subject
Magnification
Distance (mm)
Near Far Near Far
EF12 II
17mm Incompatible
85mm 222 656 0.43
Ч
0.14
Ч
EF25 II
17mm Incompatible
85mm 189 368 0.72
Ч
0.33
Ч
Manual focusing is recommended for accurate
focusing.
COP
Y