I've put together a mini review of the Leitz Fokos rangefinder which I've used some time in my landscape photography:
Leitz Fokos rangefinder mini review
It's not a Leica Disto D5, but if you don't use the rangefinder for focusing (ie you use live view or ground glass + loupe) and only use it to make depth of field judgements together with tables or DoF apps I find it to have adequate precision.
As I like fine mechanical instruments and don't like to carry a lot of weight or battery-powered things, this rangefinder together with a laminated DoF table card is my tool of choice.
Leitz Fokos rangefinder mini review
It's not a Leica Disto D5, but if you don't use the rangefinder for focusing (ie you use live view or ground glass + loupe) and only use it to make depth of field judgements together with tables or DoF apps I find it to have adequate precision.
As I like fine mechanical instruments and don't like to carry a lot of weight or battery-powered things, this rangefinder together with a laminated DoF table card is my tool of choice.