The adapter is made of sturdy metal and about 97 gram heavy.
The lenses / camera can easily install and remove again.
I bought the adapter because of the price and because it has at least 4 screws on the chromed lens page. (Some other adapters there have only 3 screws)
For larger / heavier lenses have a focal length of about 85mm, you should definitely choose an adapter with tripod connection and also use the stand.
Some photos assembled by the adapter to the digital camera:
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To mention: The adapter has only on the objective side a chrome bayonet ring.
On the camera side of the bayonet connection is directly connected to the adapter.
So far, no trace can be seen there and I change the lenses and adapter quite often.
The delivery time was within the vendor information.
The adapter comes from China and the price is almost paid for this quality.
What I do not think is good that came of the adapter only in a padded envelope. Thus, the carton is in the adapter is completely dented / bent and come with imprints of the adapter with me on. As must be improved.
Fortunately, the adapter is very robust, and has survived transport without damage.
