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POI shift with magnification change |
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Gerry Atric
Optics Journeyman Joined: April/21/2011 Location: Sweden Status: Offline Points: 340 |
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Posted: December/01/2011 at 10:22 |
Would like to hear the opinion on this old topic, my opinion is that it´s present at least on an all SFP scopes (sometimes in a hardly measurable way, sometimes in an more than evident fashion)
Is there any hard facts that will state my opinion, is it written in any of the manufacturers specs?
I remember (?) a statement from Zeiss: 10mm at 100 meters
Is the POI shift totally out of the equation in a FFP-scope due to the construction ?
Gerry Atric
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koshkin
MODERATOR Dark Lord of Optics Joined: June/15/2004 Location: United States Status: Offline Points: 13181 |
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There is no specific number associated with POI shift in SFP scope due to magnification changes. It varies between different designs. It is present in every SFP scope, except with truly good ones it is so small you can't detect it.
With FFP reticles, it can, in principle, be there, but it would have to be a very screwed up scope in a number of different ways. ILya
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