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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
POA/POI and focal plane problems
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<blockquote data-quote="Dave King" data-source="post: 17675" data-attributes="member: 3"><p>I'm a little confused but the description(s) but I'll offer something.</p><p></p><p> When you mention you discovered the rifle was canted and you straightened it up the image went "out of the focal plane" (I read as "the image went away, as in disappeared"). Rotating the rifle to remove the cant and having the image "go away" sounds like an astigmatism abberation thing... I'm not a rocket scientist not optical engineer so this is a stab-in-the-dark. You can do a search in the web for astigmatism abberation riflescope or some such and find more info. "Sun up" and "sun down" are often discussed in long range shooting... sun up--- bullet up, sun down---bullet down as I recall... could be garbage but more stuff to look up.</p><p></p><p>Maybe some optics fella(s) will chime in. Call the folks at Premier and chat with them if they have a few minutes...</p></blockquote><p></p>
[QUOTE="Dave King, post: 17675, member: 3"] I'm a little confused but the description(s) but I'll offer something. When you mention you discovered the rifle was canted and you straightened it up the image went "out of the focal plane" (I read as "the image went away, as in disappeared"). Rotating the rifle to remove the cant and having the image "go away" sounds like an astigmatism abberation thing... I'm not a rocket scientist not optical engineer so this is a stab-in-the-dark. You can do a search in the web for astigmatism abberation riflescope or some such and find more info. "Sun up" and "sun down" are often discussed in long range shooting... sun up--- bullet up, sun down---bullet down as I recall... could be garbage but more stuff to look up. Maybe some optics fella(s) will chime in. Call the folks at Premier and chat with them if they have a few minutes... [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
POA/POI and focal plane problems
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