Hi Roger my friend,
I wouldn't say that you need one mate but they do bring quite a lot to the party.
They would compliment a NS50 / 200 very well as instead of having to lift the rifle to look through the NS screen to spot your quarry all you have to do is just peek through the Bresser.
This saves on NS battery power too and is a lot lighter than a rifle combo.
If your shooting with a buddy he can also watch and film you shoot with it if needed.
Si.
Hi,,, how would you use them as a combo /or with your scope ?? thanks