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|Transmission System||Infrared pulse|
|Transmission Range||Indoors: Approx. 39.4 - 49.2' (
Outdoors: Approx. 26.2-32.8' (
|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]|
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...
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.
I've used this product for about a year now, and I have a complaint about how outdated this seems.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
I just buy this canon for my speedlite 580EX II & work very well
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
this is a good product!!
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.
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.
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.
Great for off camera flash photography. Not as expensive as radio.
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.