Canon 580EX

Check availablity: eBay.

The initial batches of the Canon 580EX (mk I) were faulty. These Speedlites would compensate for sensor size for normal and tele lenses, but would give severe vignetting if used with wide angle lenses (below f=24mm) on a body with a small (1.6x crop) sensor. Canon silently corrected this problem some time in 2005, but has still to acknowledge the problem publicly. According to this thread at DPReview, Canon UK has started replacing or repairing faulty units under guarantee, while service centers in other locations may still not acknowledge the problem. If you are planning to buy a used 580EX to use with a camera with a non-FX sensor (e.g. EOS 1000D, 500D, 50D), you should be careful if the serial numbers on the 580EX starts with 0 or 1, and test the unit for this problem prior to purchase to avoid being stuck with a broken unit.

There have also been several reports about problems when using the flash wirelessly with third party products. We keep track of such reports here.


For dedicated flash system: Canon.
Head: 14, 24-105mm coverage, power zoom (w. manual override).
Swivel & tilt: -180° to +180° swivel, 0° to +90° tilt.
Exposure modes: TTL, HSS, Varipower, Multi, OTF.
Manual settings: 1/1 to 1/128 in 1/3 EV steps (22 steps).
Wireless modes: Master, Remote (dedicated).
Features: LCD, Crop aware.
Trigger voltage: <6 volt.
Batteries: 4xAA.
Field upgradable: No.
Dimensions: 75 x 134 x 114 mm, 370 g.

Zoom head setting:f=35mmf=50mmf=max
Guidenumber (ISO 100, meter):364258
GNs taken from manufacturer's specifications.

Price: USD 380 (new, w/o tax).
Production: 2005-2008, replaced by: Canon 580EX II.

For a detailed explanation of the above specifications, see the guide.



Brand profile

Key info

Established: 1937
HQ: Tokyo, Japan
Web: Global, EU, US, man

Canon is a multinational corporation headquartered in Tokyo, Japan specializing in the manufacture of imaging and optical products. Its products including cameras, lenses, flash units, scanners, photocopiers, printers and steppers (used in semiconductor fabrication). The company was founded in 1937 as Precision Optical Instruments Laboratory and renamed Canon Inc. in 1947.

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