Electronics : Canon Flash Speedlite Wireless Remote Transmitter ST-E2

Rating: - Over-priced
As is the case with most Canon kit, the ST-E2 is overpriced. The unit does perform very well, and does exactly what it should.

However, I think it is in need of an update. The part which slots on to the hot-shoe is made of plastic, not metal, and is a little wobbly - although not insecure. The same fitting on my 580EX II flash is far superior. I dare say they could also make it less bulky.

I prefer the use of a 2CR5 battery, because the power should outlast a couple of rechargeable AA batteries. Be sure to order a battery, because it is not supplied with one!

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Rating: - Very useful - lost a star for the ridiculous price
The ST-E2 transmitter is a great way of getting your speedlite flash off-camera and opening up other photographic possibilities.

It has a rake of options on the back including being able to set the ratio of slave flash groups you're controlling with the device. There are 4 channels available and it can sync with high shutter speeds too at the press of a button.

Now onto the bad stuff which is mainly the price. £135 for this is robbery!!! It's very useful yes but when mine arrived I thought I had ordered the wrong thing because it was so small! However, aside from remote triggering of compatible speedlites it can throw out an infra-red focus assist beam which is useful on cameras like the 5D with no built in flash or assist beam so can maybe find a little use outside of the obvious. If it was £85 fair enough but as it is it's overpriced. It also uses a 2CR5 battery which is annoying because I can't use my rechargeable AA's.

If you want remote release for flashes there's probably not much choice and it does work perfectly so it is still recommended.