What advantages does a larger objective offer over a smaller? I bought a USO SN3 that was listed as having a 58mm objective but what arrived actually is a 44mm. I felt the deal was fair and the seller was straight forward (meaning I dont thing he intentionally lied). In the photo it was hard to tell the size because of the angle and I never questioned it since the ad clearly listed 58mm lo profile. If Im not giving up anything I can live with the 44mm since thats what my ST10 has and I have been very satisfied with it. But on the other hand I have never had a 58mm so I have no point of reference to know what I might be missing.