Canon EF Lenses Instructions

Canon EF Lenses

CT1-8540-000 0906SZxx © CANON INC. 2006 PRINTED IN JAPAN 2007.1.1EF LensesEF15mm f/2.8 Fish-eye EF24mm f/2.8 EF28mm f/2.8 EF35mm f/2 EF50mm f/1.0L USM EF50mm f/1.8 EF85mm f/1.2L USM


  1. Distance scale
  2. Infrared index
  3. Depth-of-Field scale
  4. Distance index
  5. Focusing ring
  6. Focus mode switch
  7. Lens mount index
  8. Contacts

Thank you for purchasing a Canon lens.

Safety Precautions
  1. Do not look at the sun or a bright light source through the lens or camera. Doing so could result in loss of vision. Looking at the sun directly through the lens is especially hazardous.
  2. Whether it is attached to the camera or not, do not leave the lens under the sun without the lens cap attached. This is to prevent the lens from concentrating the sun’s rays, which could cause a fire.
Handling Cautions

If the lens is taken from a cold environment into a warm one, condensation may develop on the lens surface and internal parts. To prevent condensation in this case, first put the lens into an airtight plastic bag before taking it from a cold to warm environment. Then take out the lens after it has warmed gradually. Do the same when taking the lens from a warm environment into a cold one.

Handling Precautions for EF50mm f/1.0L USM and EF85mm f/1.2L USM

  • Handle these lenses of precision with care and protect it from sudden shock and abusive handling.
  • Before putting the lens in its case, put the lens hood on the dust cap and set the lens to the ” ” position.

1. Mounting and Detaching the Lens See your camera’s instructions for details on mounting and detaching the lens.

  • After detaching the lens, place the lens with the rear end up to prevent the lens surface and contacts from getting scratched.
  • If the contacts get soiled, scratched, or have fingerprints on them, corrosion or faulty connections can result. The camera and lens may not operate properly.
  • If the contacts get soiled or have fingerprints on them, clean them with a soft cloth.
  • If you remove the lens, cover it with the dust cap. To attach it properly, align the lens mount index and the index of the dust cap, and turn clockwise. To remove it, reverse the order.

2. Setting the Focus Mode To shoot in auto focus mode, set the focus mode switch to AF . To use only manual focusing, set the focus mode switch to MF (M), and focus by turning the focusing ring. Setting the Focusing Range (for EF50mm f/1.0L USM) Two autofocus ranges are selectable with the lens .

  • 0.6- : From closest focusing distance to infinity.
  • 1- : From 1m to infinity.

3. Depth-of-Field Scale The depth of field is the distance in front of and behind the plane of focus on the subject that appears sharp. The depth of field is indicated by the area between the depth-of-field scale lines below the distance scale. Numbers in the scale are in F values, and for example, if the shooting distance is 1.5m and the aperture is f/11 with the EF35mm f/2, the sharp area will extend from about 1.2m to 2.8m .

  • The depth-of-field scale is an approximate indicator.

4. Infrared Index The infrared index corrects the focus setting when using monochrome infrared film. Focus on the subject manually, then adjust the distance setting by moving the focusing ring to the corresponding infrared index mark . Use a red filter also when you take the picture. · Switch the focus mode to MF (M) to turn the focusing ring for adjustment.

  • The position of the infrared indices is based on film usage with a peak sensitivity of 800 nm and a red filter (such as Wratten 87).
  • Be sure to observe the manufacturer’s instructions when using infrared film.

5. Hood EF15mm f/2.8 Fish-eye (built-in) EF24mm f/2.8, EF28mm f/2.8, EF35mm f/2, EF50mm f/1.8 (sold separately) EF50mm f/1.0L USM, EF85mm f/1.2L USM (supplied with the lens) Be sure to use the hood to keep stray light out for best results with the EF50mm f/1.0L USM and the EF85mm f/1.2L USM. Attach the lens hood as illustrated.

  • The EF15mm f/2.8 Fish-eye hood is built-in.
  • To mount the hood on the EF24mm f/2.8 lens, align the hood’s attachment position mark with the red dot on the front of the lens, then turn the hood clockwise until the lens’s red dot is aligned with the hood’s stop position mark.

6. Filter (sold separately) The filter screws onto the front of the lens .

  • Only one filter may be attached.
  • If you need a polarizing filter, use Canon’s PL-C polarizing filter.

Filter holder for the EF15mm f/2.8 Fish-eyeThis lens is constructed with a built-in, gelatin filter holder in the rear . To insert, simply cut the filter to the same dimensions (31mm (1-1/4″) × 31mm (1-1/4″)) as the white brackets, then slide the filter into the holder. EOS-1 usage: When using the EF50mm f/1.0L USM, the corners of the picture area experience a slight darkening. This will not affect the picture.

  • The lens length is measured from the mount surface to the front end of the lens. Add 21.5mm when including the lens cap and dust cap. (Add 16.8mm for EF15mm f/2.8 Fish-eye)
  • The size and weight listed are for the lens only, except as indicated.
  • Product specifications and appearance are subject to change without notice.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Do not make any changes or modifications to the equipment unless otherwise specified in the instructions. If such changes or modifications should be made, you could be required to stop operation of the equipment. This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generated, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

  • Reorient or relocate the receiving antenna.
  • Increase the separation between the equipment and receiver.
  • Consult the dealer or an experienced radio/TV technician for help.

This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the interference-causing equipment standard entitled “Digital Apparatus”, ICES-003 of the Industry Canada.

Angle of view
Lens construction
Minimum aperture
Max. magnification
Diagonal Vertical Horizontal
EF15mm f/2.8 Fish-eye 180° 7-8 22 0.14
EF24mm f/2.8 84° 53° 74° 10-10 22 0.16
EF28mm f/2.8 75° 46° 65° 5-5 22 0.13
EF35mm f/2 63° 38° 54° 5-7 22 0.23
EF50mm f/1.0L USM 46° 27° 40° 9-11 16 0.11
EF50mm f/1.8 46° 27° 40° 5-6 22 0.15
EF85mm f/1.2L USM 28°30’ 16° 24° 7-8 16 0.11
Min. focusing distance Filter diameter Hood Max. diameter and length Weight Case
0.2 m 0.7 ft. *1 *2 73 × 62.2 (2.9” × 2.4”) 330 (11.6 oz.) LP814
0.25 0.8 58 EW-60 II 67.5 × 48.5 (2.7” × 1.9”) 270 (9.5 oz.) LP811
0.3 1 52 EW-65 II 67.4 × 42.5 (2.7” × 1.7”) 185 (6.5 oz.) LP1011
0.25 0.8 52 EW-65 II 67.4 × 42.5 (2.7” × 1.7”) 210 (7.4 oz.) LP1011
0.6 2 72 ES-79 II 91.5 × 81.5 (3.6” × 3.2”) 985 (34.7 oz.) LP1219
0.45 1.5 52 ES-65 III 67.4 × 42.5 (2.7” × 1.7”) 190 (6.7 oz.) LP1014
0.95 3.2 72 ES-79 II 91.5 × 84 (3.6” × 3.3”) 1025 (36.2 oz.) LP1219
  1. Built-in gelatine filter holder
  2. Built-in


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