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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Parallax vs Focus
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<blockquote data-quote="Bart B" data-source="post: 108898" data-attributes="member: 5302"><p>Rick, go someplace (your local city library?), find information on optical formulas, understand them, then put them to use designing individual lens group focal lengths and positioning for telescopic sights of different physical size and magnifications; zooms included. It's grade-school math for the most part. Then you will understand why I said what I did.</p><p></p><p>What scope make and model doesn't have an adjustable eyepiece? Just curious......</p></blockquote><p></p>
[QUOTE="Bart B, post: 108898, member: 5302"] Rick, go someplace (your local city library?), find information on optical formulas, understand them, then put them to use designing individual lens group focal lengths and positioning for telescopic sights of different physical size and magnifications; zooms included. It's grade-school math for the most part. Then you will understand why I said what I did. What scope make and model doesn't have an adjustable eyepiece? Just curious...... [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Parallax vs Focus
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