Canon EF50mm F1.2L USM Instruction Manual page 9

9. Extension Tubes (Sold separately)
With Extension Tube EF12 II or EF25 II, the
camera-to-subject distance and image
magnification will be as follows:
Camera-to-Subject
Distance (mm)
Near
EF12 II 246
EF25 II 204
When an Extension Tube is attached, focus
manually.
Magnification
Far Near Far
322 0.39× 0.24×
218 0.67× 0.53×
10. Close-up Lenses (Sold separately)
Attaching a 500 or 500D (72mm) Close-up Lens
enables close-up photography.
Magnification will be 0.25
¡Sales of the 500 Close-up Lens may already be
terminated in some areas.
¡Close-up Lens 250D cannot be attached
because there is no size that fits the lens.
¡When using a Close-up Lens, focus manually.
× ×
– 0.10 .
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