My understanding is the EP5 uses Japanese-made lenses, while the others use Chinese lenses (nominally lower quality). The EP5 has a 56 mm objective while the SH4 is 50 mm. Unless shooting in lower light conditions, that will not provide a significant benefit. Obviously a significant price difference. I have an EP5, and am considering a SH4 to put on a precision rimfire.
My understanding is the EP5 uses Japanese-made lenses, while the others use Chinese lenses (nominally lower quality). The EP5 has a 56 mm objective while the SH4 is 50 mm. Unless shooting in lower light conditions, that will not provide a significant benefit. Obviously a significant price difference. I have an EP5, and am considering a SH4 to put on a precision rimfire.
The EP5 has a 56mm objective, Japanese ED glass, and a full 10 MIL per revolution on the elevation turret.
The SH4 has a 50mm objective, Chinese HD glass, and 8 MIL per revolution,
Both are great scopes, but the EP5 is the dominate one of the bunch.