Fotasy Exakta Lens to E Mount Adapter, Exakt to FE, Auto Topcon Lens E Mount Adapter, Compatible with Sony a7 a7R a7s II III IV a9 a7c Alpha 1 a6600 a6500 a6400 a6300 a6100 a6000 a5100 a5000 ZV-E10

Sehr lange Lieferzeit, Beschreibung könnte auch präziser sein, mußte Produkt zurückschicken weil es mit meinem alten Objektiv nicht passte

The Fotasy Exakta to Sony e mount adapter rates 3 stars. The good thing is that the Sony e-mount sides of the adapters fit well. The not-so-good things are two problems with the Exakta side. First, on two of the adapters, end of the spring protruded through the hole in the catch lever and contacted the rear of of the lens or Exakta bayonet extension tube. Thus, it did not fit. Second, on all five of the adapters I tried, the flanges on the rear of the lens bayonet collided with the flanges of the Fotasy adapter. Therefore, I used a cheap "aftermarket" exakta bayonet extension tube and torque to force it open. About 15 to 20 turns were required to fix it (Do not do this procedure with a good lens!!!), plus I removed any metal bits released. Once this was done, the adapters worked. Finally, on the good side, Fotasy replaced two adapters that did not work. My recommendation is that Fotasy refine its production machining so that this additional effort is not required to make them work. I suggest that the new batches be tested and labeled as improved.

The exakta to nex adapter does not fit exakta lenses. As another reviewer mentioned, the side to fit the lens was not properly machined, the lens blade would not pass through and not turn. See the photo. I have several exakta lenses and none of them can be fitted securely.Update： I have figured out exactly what was wrong and how to fix it. See the second picture. The problem is the rim of the exakta side is not smooth. There is this thin sharp edge of metal that should have been cut off cleanly and smoothed out but was not. Be careful don’t cut your finger! I used a dremel to sand it down. Now my lenses fit perfectly. Still the customers should not have to take a dremel to a brand new product to make it work.

I am using it to connect a Topcon Auto Topcor 2.5cm to a Sony A7RM2 body; works fine and focuses to infinity.

Adapter does its job and does it well. Seller is very prompt with shipping.