Sigma 18-50mm F3.5-5.6 DC vs Canon EF 400mm F4 DO IS USM

This is a full comparison between the lenses Sigma 18-50mm F3.5-5.6 DC and Canon EF 400mm F4 DO IS USM .

Compare Specifications

Product
Sigma 18-50mm F3.5-5.6 DC
Canon EF 400mm F4 DO IS USM
Name Sigma 18-50mm F3.5-5.6 DC Canon EF 400mm F4 DO IS USM
Manufacturer Sigma Canon
SKU
Release Date and Price
Sigma 18-50mm F3.5-5.6 DC
Canon EF 400mm F4 DO IS USM
Release Year 2005 2001
Release Date
MSRP N/A 6469 USD
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Lens Type
Sigma 18-50mm F3.5-5.6 DC
Canon EF 400mm F4 DO IS USM
Lens Type Standard / Normal Telephoto
Supertelephoto
Zoom or Prime Zoom lens Prime lens (no zoom)
Mount and Compatibility
Sigma 18-50mm F3.5-5.6 DC
Canon EF 400mm F4 DO IS USM
Mount Canon EF-SNikon F Canon EF
Designed for APS-C sensor Yes No (Suitable for all sensors)
Focus
Sigma 18-50mm F3.5-5.6 DC
Canon EF 400mm F4 DO IS USM
Autofocus (AF) YesNote. See below for further information Yes
Built-in Autofocus (AF) Motor No
Requires that the camera has an Autofocus Motor
Compatible Cameras for Sigma 18-50mm F3.5-5.6 DC
Yes
Motor Type N/A No information
Focus Method No information No information
Closest Focusing Distance 25 cm 350 cm
Maximum Magnification
Aperture
Sigma 18-50mm F3.5-5.6 DC
Canon EF 400mm F4 DO IS USM
Maximum Aperture F3,5-5,6
This lens has a variable aperture at different focal lengths.
F3,5 at 18 mm
F5,6 at 50 mm
Variable Aperture
F4
Diaphragm Blades No information No information
Optics
Sigma 18-50mm F3.5-5.6 DC
Canon EF 400mm F4 DO IS USM
Construction 8 elements  /  8 groups 17 elements  /  13 groups
Special Elements/Coatings No information No information
Focal Length
Sigma 18-50mm F3.5-5.6 DC
Canon EF 400mm F4 DO IS USM
Focal Length 18-50 mm 400 mm
Zoom Range 32 mm None (Prime lens)
No Zoom available.
Built-in Teleconverter No No
Teleconverter Multiplier N/A N/A
Image Stabilization No Yes
IS
Image Stabilization CIPA Rating N/A N/A
Physical
Sigma 18-50mm F3.5-5.6 DC
Canon EF 400mm F4 DO IS USM
Weather Sealing No Yes
Diameter 67 mm 128 mm
Length 62 mm 232 mm
Weight 250 gr 1940 gr
Other
Sigma 18-50mm F3.5-5.6 DC
Canon EF 400mm F4 DO IS USM
Filter Type Filter Thread Drop-in Filter
Filter Diameter 58 mm 52 mm
Lens Hood Included Included
Lens Hood SKU N/A ET-120
Tripod Collar N/A Included
Tripod Collar SKU N/A N/A