Fear: M43 Lens Adapter to EF Lens

[jkwan3]

Hey guys, I'm really hoping someone might have some advice to this predicament.
I bought the Sigma 18-35 fairly recently (which I am in absolute love with btw) to use with my GH3. I purchased this Fotodiox to mount the lens to. This being my first time using an adapter, I wasn't sure if it was normal that attaching the lens to the mount didn't work as smoothly as attaching a lens into its native mount. I was switching lenses today, and to my dismay, I noticed that there were some TINY scratches on the metal part of the Sigma [see picture below] as well as some metal shavings that had accumulated at the bottom of my lens adapter.
Any input would be greatly appreciated. Thanks!

 

[Greg_E]

It is unfortunately fairly common with the cheaper adapters, there is probably a burr on some edges inside the mount. I usually take things apart and clean up any sharp edges with a fine file. Sad that this happens on a so called "Pro" mount. I'm finding that the "Pro" level from them is not really much better than their regular line. They are always way to short and need shims. I've addressed this with them, and they are content shipping out this level of quality, and at the time had no desire to sell a shim kit so we could make the length correct.

 

[jkwan3]

It is unfortunately fairly common with the cheaper adapters, there is probably a burr on some edges inside the mount. I usually take things apart and clean up any sharp edges with a fine file. Sad that this happens on a so called "Pro" mount. I'm finding that the "Pro" level from them is not really much better than their regular line. They are always way to short and need shims. I've addressed this with them, and they are content shipping out this level of quality, and at the time had no desire to sell a shim kit so we could make the length correct.

Thank you for the reply. That is unfortunate; I surely hope that I didn't cause any significant damage to the lens..