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Specifications for the EF 400mm f/4 DO IS USM lens

Approx. 197 x 232.7 mm/ 7.7 x 11 .6 inch (at 3.5m) Max. diameter and Length 128 x 232.7 mm/5 x 9.1 inch Weight

Specifications for the EF 400mm f/5.6L USM lens

Approx. 194 x 291 mm/ 7.6 x 11 .5 inch (at 3.5m) Filter Diameter 77 mm / 3.0 inch Max. diameter and Length

Using Extenders (Sold Separately) with the EF 400mm f/5.6L USM lens

Extenders 3° 40' 2° 35' Maximum magnification ( X ) 0.18 0.25

Using Extenders (Sold Separately) with the EF 400mm f/4 DO IS II USM lens

Extenders 1° 40' Horizontal 3° 40' 2° 35' Maximum magnification ( X ) 0.18 0.26

Using Extenders (Sold Separately) with the EF 400mm f/2.8L IS II USM lens

Extenders 1° 40' Horizontal 3° 40' 2° 35' Maximum magnification ( X ) 0.25 0.35

Using Extenders (Sold Separately) with the EF 600mm f/4L IS III USM lens

Extenders 1° 10' Diagonal 3° 2° Maximum magnification ( X ) 0.21 0.31

Using Extenders (Sold Separately) with the EF 200-400mm f/4L IS USM Extender 1.4x lens

Extenders Horizontal 7°20' 3°40' 5°10' 2°35' Maximum magnification ( X ) 0.15 0.22 0.21 0.31

Using Extenders (Sold Separately) with the EF 500mm f/4L IS II USM or EF 600mm f/4L IS II USM lens

Extenders 1° 40' Maximum magnification ( X ) 0.21 0.31 0.21 0.30

EF400mm f/5.6L USM Specifications

EF400mm f/5.6L USM Other professional features are: a built-in lens hood with locking mechanism, dual manual focusing rings, a removable ring-type tripod mount, full-time manual focusing, and focus range selector for 3.5m to infinity or 8.5m to infinity. Extenders EF1.4 X and EF2 X can be used with manual focusing.

Using Extenders (Sold Separately) with the EF 800mm f/5.6L IS USM lens

Extenders Only one Extender can be attached to the lens and camera. If you use an Extender on the lens mounted on a EOS A2/A2E/5, set the exposure compensation to -1/2 stop for the EF1.4 X II or -1 stop for the EF2 X II.

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