Hi guys. I have only recently joined the m43 family and this site and have only just begun to experiment with my new baby....a GF1 + 20/1.7 and on the advice of many others both here and elsewhere....I jumped in with both feet forward and have got some legacy glass too. I got my pentax-a 50/1.4 the other day with adapter and REALLY enjoy it...I hope to post my first photos with it and the 20/1.7 very soon. I have also got an M42 screwmount Jupiter 9 85/2....again, it came highly recommended and I just loved the photographs I have seen it produce. One problem though, unlike my Pentax-a 50/1.4 with adapter, the M42-M43 adapter i got fot the Jupiter doesn't have that same distinctive click/snap into the camera body that my pk-m43 adapter has...funny thing is, they are both made by te same manufacturer....FOTGA !! This is it .... M42 Lens 2 Micro 4/3 m43 Adapter 4 G1 GF1 GH1 E-P1 E-P2 | eBay When I use the fotga pk--m43 for my pentax the camera recognises it and it works great with a nice positive 'click' as i attach it to the gf1 body. When i tried the same with the m42-m43 adapter there was no positive 'click' when attaching and I get a blank screen with a message saying something along the lines of 'lens not attached properly' !!! I have inspected both the lens and adapter thoroughly and tried it all over and over several times...slowly....to try and see, hear...and feel...that it all fits and moves correctly. Something isn't right with the adapter i assume as it isn;t clicking into the body and locking....I can actually removing the lens&adapter without pressing the lens release button. Help please I imagine I got just plain unlucky with a poor adapter off *bay.....can anyone reccomend a good adapter, one that they have used with success . Any help is much appreciated.