Which FD to M43 adapter?

How about they feel like crap, but they work well.

As for your ebay link, somewhere in that seller's 144282 reviews are two of mine, which were positive. I've bought at least two adapters from him,

 

Hope you hear from someone who has bought that adaptor, fwiw it looks very much like the one I got from Amazon: http://smile.amazon.com/gp/product/B003EAVUMK/ref=oh_details_o05_s00_i03?ie=UTF8&psc=1 except that it has the optional ability to mount to a tripod. There's not much to these things, so I wouldn't be surprised if it works just fine.

 

I got my FD adapter from fotodiox

 

I have one if you haven't ordered it already.

 

I have tried several of the cheap ebay ones and all but one had issues. Mostly they focus beyond infinity but I have also had problems with screws falling out and loose/tight fit. I also have several Fotodiox adaptors and they are great. They fit properly and focus correctly and so far no screws have come out. I also have one from Metabones and it is top notch, although it was a bit more expensive.

 

I have gotten 4 adapters from Rainbow Imaging (they sell on eBay and I believe Amazon) and all of them have worked perfectly. I honestly see no reason to speed the cash on the more expensive ones. Plus, if you have a lot of old lenses it is super cheap to get one for each lens. Makes swapping lenses a lot easier, especially if you are using 3 different legacy mount and native lenses.

 

completely agree with the above, never had an expensive adapter, but I've never needed one either.