Adapting a quality product

After I discovered "Oldies" from Minolta in a very good store, I bought 3 relatively heavy lenses. At my new Sony NEX-7 I use the Macro MD 100mm f4 telephoto 200mm f4 and the telephoto 135mm f2.8 MD. The lenses weigh about 400 or about 500 grams.
To that we the weight of 89g for this adapter. Due to the high for the bayonet of NEX-7 weight I have also bought the adapter Stativschelle Novoflex ASTAT-NEX.

This adapter is very good with respect to the material used, the work and exact shape.
The price is probably adequate, although there are cheaper alternatives. The production "Made in Germany" is worth it to me.

I look forward every time I achieve with the aforementioned "glasses" to my NEX-7 good image results.
The adapter part is also significantly involved. Buying I can recommend without reservation.