One adaptation strategy (awesome steampunk look included) would be to get a secondhand or cheap bellows that fits your DSLR, strip everything you don't need from the front end of the bellows, then drill holes in the front plate of that bellows and bolt the lens on semi-permanently. Make sure the lens sits flat-on. Use DC-fix, foam rubber, black electrical tape, silicone, whatever to light-tighten if necessary. Add extension tubes camera-side when your bellows is not long enough.
This kind of lens has not much of a reason to be retrofocus/telephoto in design, so expect it to need to be approximately ten inches (the focal length) away from the sensor to reach infinity focus.
The best use, however, would not be landscape, unless you love telephoto landscape shots.
Lenses like that are potent long focus macro lenses; if they are satisfactory at infinity too (read the comments, some might not be), try them as a relatively fast telephoto for astrophotography (moon and planets), night scenery, theatre....