bower vs ebay FD to m43 adapters

[Jonathan12uiz]

I was looking @ the bower m43 adapter on bh.

http://www.bhphotovideo.com/c/product/699804-REG/Bower_AB43FD_AB43FD_Micro_Four_Thirds.html

it had a review about no infinity focus though, I really need an adapter basically by the end of the week and I can overnight this one.

But anyone have experience with it?

 

[NPrincen]

The review on B&H talks about annoying infinite focus beyond infinity. In my experience, ALL of these adapters do that. In order to guarantee that the lens will focus to infinity, they all make the adapter a little shorter than the perfect extension distance. When you focus the lens all the way to the infinity hard stop, the image will be slightly blurred. You need to back the focus off the hard stop a little bit to adjust to perfect infinity focus. I don't think you will find an FD adapter that does not have this issue. It is similar to the focus past infinity that many long telephoto lenses have to account for temperature shrinkage of the barrel length.