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i never used vx1 so i cannot say, but have a vx2 and vx3, and a bunch of other cheaper scopes. i can tell you this about image quality -

in close range ( ~100m) with good lighting, you will not...

1, it is an efr. all leuppy efr scopes are more expensive than non-efr, which are more expensive than non-ao.

2, this is a leuppy, so it has lifetime warranty, at the same time it is ultra light...