Rifle Scopes Steiner 3-12x56 Chromatic abberation

[shark101au]

I recently purchased a Steiner 3-12x56 Mil Dot scope and have been testing it out over the last couple of days. I've noticed a fair amount of chromatic aberration (purple fringing). My assumption was that optics of this quality and cost would have eliminated this. If I change my eye position it tends to disappear.
Has anyone else experienced this, is this usual or unusual, is my technique off when I look through the scope?

Thanks.

PS. I haven't really used scopes before, just red dots and iron sights.

 

[shark101au]

BUMP, no one has any opinions on this?

 

[OptedOut]

Sure...it is very unusual, call the US reps 888-228-7747.

 

[cobravenom39]

Sure...it is very unusual, call the US reps 888-228-7747.

I have one and used it on my M107A1. I'm not sure I have a discerning enough pupil to notice this phenomena, however...

 

[hk dave]

When do you see the fringing... is it only in high contrast environments or when looking at white?

Fringing has to be pretty gnarly for me to care about it, but that's me.

 

[scudzuki]

I notice it in my Steiner 5-25 sometimes.
What I realized is that If I am centered in the eyebox it goes away.

Joe