Extension Tubes - Canon EF 100mm f/2.8L Macro IS USM Instruction

11. Filters
You can attach filters to the filter mounting thread
on the front of the lens.
• Filters and the macro flash cannot be used on
this lens at the same time.
• If you need a polarizing filter, use the Canon
Circular Polarizing Filter PL-C B (67mm).
• To adjust the polarizing filter, first remove the
lens hood.
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12. Extension Tubes

You can attach Extension Tube EF12 II or EF25
II for magnified shots. The shooting distance and
magnification are shown below.
Camera-to-Subject
Distance (mm)
Near
EF12 II 302
EF25 II 307
Manual focusing is recommended for accurate
focusing.
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Magnification
Far Near
1036 1.17× 0.12×
591 1.37× 0.27×
ENG-14
Far