They are the same according to what i have read.
59 of 61 people found the following review helpful:
5.0 out of 5 stars
Sceptical no more!, 5 Aug 2008
By
Comedy Nose (Merseyside, UK) -
See all my reviews
I must admit that I bought these very much on a 'at this price I'm prepared to take a chance' approach. The optical principle is sound - you push the lens away from the camera and it allows you to focus a lot closer.
I was highly dubious about what the actual result would be. Astonishingly enough, I needn't have been! It does exactly what it says on the tin, and using my bog-standard 18-55 Canon lens I've focussed about 20-30mm away from the face of the lens.
You lose the autofocus and some of the other automatic bells and whistles, but it's not really an issue with such close work. Just whack it into Av mode and you're away.
Couple of caveats, but it's nothing to do with this product - just macro stuff in general. You're working very close and dealing with not a lot of light - you really need to use a tripod. Also you're dealing with the world's shallowest depth of field - it has to be seen to be believed!
So yes, these things really do work and if you don't want to shell out on a 'proper' macro lens then this is a perfectly viable alternative for infrequent use. A worthy addition to anyone's kit bag.
Worth a punt at the price.

