Canon ST-E2 Speedlite Transmitter

Model #2478A002

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ON A BRAND NEW USA VERSION OF Canon 2478A002

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Specifications

General Information

Transmission System Infrared pulse
Transmission Range Indoors: Approx. 39.4 - 49.2' (
12-15 m
)
Outdoors: Approx. 26.2-32.8' (
8-10 m
)
Transmission Coverage ±40° horizontal and ±30°vertical
Power Source 2CR5 lithium (6V) battery
Dimensions 2.4 x 2.0 x 3.1" (62 x 51 x 80mm) WxHxD
Weight 3.5 oz (100 g) [excluding battery]
Expert Reviews
The digital picture.34755376
11 March 2010

The Canon Speedlite Transmitter ST-E2 is a small and light Canon wireless slave flash controller and focus assist device. Need to trigger slave (remote) Canon Speedlite Flashes? You can use a Canon Speedlite Flash with the master capability including the Canon Speedlite 580EX Flash and the Canon...

User Reviews
B h photo.32817553
20 August 2015
8.0/10

For my purposes, macro off camera flash, it works fine. I don't need distance or anything fancy. This is easy to use and fires both my off camera flashes flawlessly.

Canon.33575661
12 January 2012
2.0/10

I've used this product for about a year now, and I have a complaint about how outdated this seems. I find myself using 580EX II's set to off for master flash work more than I use this. I am noticing that the only times I use this is when I need autofocus in low light conditions.

  • +

    small, light, assist autofocus

  • -

    obsolete, limited features

Rakuten.34204604
10 June 2012
10/10

I just buy this canon for my speedlite 580EX II & work very well

Slr gear.32823196
6 December 2006

Works excellently as part of Canon's wireless flash system, providing consistent results. It does go through batteries pretty fast (and they're not cheap) so it would be nice to have it use reachrgeable ones.

  • +

    it works as advertised, can be used as AF assist

  • -

    uses expensive batteries

B h photo.32817553
16 September 2016
10/10

this is a good product!!

B h photo.32817553
29 June 2015
10/10

I've used this product with great results for over a year on my Canon 5D III. I'm sure it will work with all Canon cameras but of course I don't own them all.

B h photo.32817553
13 April 2015
8.0/10

I will be using it for some still life & occasional portraits where I will be using 2 or 3 of my speedlites for side/backlites when I do not need 1 mounted on my 6D.

B h photo.32817553
27 June 2014
8.0/10

This is a good basic optical transmitter. It does everything you would expect EXCEPT it does not have group C. If that matters, then this will not fit the bill. There is no earthly reason why Canon should have left that out - more the pity because otherwise this is a great little device.

B h photo.32817553
26 December 2013
8.0/10

Great for off camera flash photography. Not as expensive as radio.

B h photo.32817553
12 November 2013
2.0/10

Was so excited to have a transmitter that worked in TTL mode. Tested it with great results, but on my first shoot, it worked about 30-40 percent of the time. Was extremely frustrating to have no idea why it was working.

Product Highlights
  • Clip-on Wireless Auto Flash Transmitter
  • Sets and Controls Flash Ratios
  • E-TTL-TTL II Compatible
  • E-TTL Wireless Autoflash Control
  • Built-In AF Assist Beam
  • High-Speed FP Flash
  • Powered by 2CR5 Lithium (6V) Battery
In The Box
  • Canon ST-E2 Speedlite Transmitter
  • Limited 1-Year Warranty
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