How a scope works?

[Eagleman]

I posted this on another thread but wanted to ask it as a direct question thread.

Just to clarify how a scope works and re scope settings:

Presumably the "Up" on the elevation turret is actually sending the entire reticle DOWN inside the scope tube if you turn it up? Result = POI goes up on the target. And the windage turret "Right" is sending the entire reticle LEFT inside the tube as you turn it right? Result = POI goes to the right on the target.

That right or have I got this hopelessly wrong?

[Gary C]

sometimes...

Some german rets work the opposite way

[Eagleman]

Thanks Gary. But oh dear, trust the Germans! Presumably Leupold, S&B, Zeiss etc? But how do you know which is which (without physically testing)?

[Gary C]

Not all German stuff - it's pretty rare

[Strawman1368]

sorru to go off topic''''

got given a sebben 4-12 x 56...

illuminated ret green lenses...

put it in freezer etc to check fogging..

anybody heard of um they spose to be german made

[Scarecrow]

Thanks Gary. But oh dear, trust the Germans! Presumably Leupold, S&B, Zeiss etc? But how do you know which is which (without physically testing)?

I think you'll find that Leupold are actually American.

[rockdrill]

With a conventional 'image moving' scope, adjusting the turret to raise POI raises the erector tube within the scope. The thing to remember is at this point inside the scope the image is inverted (and is only returned to its correct orientation by an erector lens closer to the eyepiece) so this adjustment effectively moves the image of your POI to intersect the reticle.

With a scope that moves the reticle e.g certain Pecar scopes, the reticle moves down form the centre of the scope when adjusted for longer distance.