|Sony Alpha a7s|
|Steinheil München 50mm f/1.9|
I have reviewed numerous lenses on this blog and they all have been used with an adapter on my NEX cameras, most recently the Sony Alpha a7s.
No matter what manual 35mm photo lens you have, you can find an adapter to make it fit the a7s. Try eBay.
See my post on Have to Have Lenses for video, and this one on the use of Manual Lenses.