Re: Night Optics D-930
I've compared the two of them side by side. While the D-930 can be fitted with some of the world's best I^2 tubes, its not in the same league as the PVS-22.
The main problem I had with it was the mounting of the device directly to the objective bell of the day optic with which it would be used. The only advantage that could be gained from this would be if a guy had a bolt gun, and no rails on it. I know of one Leupold 3-10 X 50 that broke at the junction of the objective and fuselage of the scope, when it was fitted with a D-930.
The PVS-22 is capable of being used with a wide variety of different optics, none of which require that the NOD be touching the optic. Also, the alignment of the PVS-22 and optic is very forgiving, further enhancing the versatility of use with different platforms.
Hope that helps