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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: 1835452" data-attributes="member: 5302"><p>WildBill, how was parallax adjusted on scopes before that knob opposite the windage knob was added? It's been done for over a century.</p><p></p><p>My two target scopes don't have a parallax adjustment knob. Don't need one. That knob does nothing more than focus the target image in the reticle plane and makes no angular adjustment to the line of sight in the scope. Exactly the same as a single lens reflex camera lens focusing subject image on the ground glass in the viewfinder and on the image sensor.</p></blockquote><p></p>
[QUOTE="Bart B, post: 1835452, member: 5302"] WildBill, how was parallax adjusted on scopes before that knob opposite the windage knob was added? It's been done for over a century. My two target scopes don't have a parallax adjustment knob. Don't need one. That knob does nothing more than focus the target image in the reticle plane and makes no angular adjustment to the line of sight in the scope. Exactly the same as a single lens reflex camera lens focusing subject image on the ground glass in the viewfinder and on the image sensor. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Parallax vs Focus
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