Will the U.S. and Britain negotiate freer trade or more restrictions?
How about the U.S. and the E.U.?
It has taken Canada 7 years to negotiate a trade deal with the EU.
Don't expect deals with the USA to happen more quickly.
These deals involve all sorts of considerations that aren't immediately obvious. Like whether US agricultural produce is genetically modified when this is banned in the EU. Not to mention whether animal welfare standards are the same in both areas. Then there are protests from different industries if they fear cheap imports like steel, chemicals and pharmaceuticals. Its not a simple business especially if under the counter government subsidies of industries are suspected via tax breaks and losses offset against taxes.
It will be a while before the shape of Brexit becomes clear, for example, not only the terms of trade but also control of immigration. This uncertainty may keep the value of the £GBP depressed leading to increases in the price of binoculars and many other less important imports.
Lee