I got together with my Rokinon 800mm F8 lens two t-mount adapters, the Meade T-mount to Nikon F-mount and the Vello T-mount to Sony E-mount. I did not have any problem attaching the lens to my Nikon D610 and mounting it on a tripod, however when I attached it to my Sony A6000 the stress on the mount was too much. It seemed that the mount was going break. Breaking a $700 dollar camera is not an option for me so I came up with an idea to make a cheap tripod collar to put around the adapter in order to release the stress on the mount since this is a fairly heavy lens. I spent $8.04 plus tax on the project. This is how less than $10 can save your $700 investment. All the material listed below can be found at Home Depot.
- Wrap the conduit hanger with electrical tape. It does not have sharp edges but I prefer to have something to protect my adapter from scratches caused by a metal on metal assembly.
- Place the adapter inside the hanger carefully and watch its position. The red dot should be at 9 o’clock, just like if it was any other lens with a tripod collar.
- Run the bolt through the squared hole only and insert two hex nuts. This will serve as a stopper so when you don’t over-tighten the bolt and put too much pressure on the adapter.
- Run the bolt through the rounded hole and insert the nut that it came with.
- Start tightening carefully. At the same time watch that the adapter is placed correctly and the pressure is even, otherwise it could get damaged.
- Once it is tightened jam the two nuts in the middle towards the end of the bolt to lock the stopper in place just in case you need to unmount the adapter.
- Use the nylon lock nut to attach the whole assembly to the tripod plate. Do not over-tighten the screw.
You end up with something similar to this:
Here is the finished product! very happy with it, I actually tested it and turned out to be very steady, no movement in any parts that should not be moving. Always be careful not to damage your sensor when attaching the assembly onto the camera since there’s no mirror to protect it. Here is how it looks on the A6000.