Canon EF 180mm f3.5L Macro USM - Manual (Page 12)

ENG-11
You can attach filters to the filter mounting thread
on the front of the lens.
11. Filters
(Sold separately)
You can attach Extension Tube EF12 II or EF25
II for magnified shots. The shooting distance and
magnification are shown below.
12. Extension Tubes
(Sold separately)
Manual focusing is recommended for accurate
focusing.
• If you need a polarizing filter, use the Canon
Circular Polarizing Filter (72mm).
• To adjust the polarizing filter, first remove the
lens hood.
Camera-to-Subject
Magnification
Distance (mm)
Near Far Near Far
EF12 II 477 2930 1.09
Ч
0.07
Ч
EF25 II 480 1501 1.21
Ч
0.15
Ч
COP
Y