Rifle Scopes Diopter adjustment question

TommyD11730

Sergeant of the Hide
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Apr 11, 2020
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Do you have to set your dioptor on max power? On my scope the recital is so large it appears clear at all but the most extreme adjustments.

Thanks
 
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Parallax does not concern the clarity of your reticle.

Reticle focus is determined by the Ocular (eye side) focus.

Parallax is the placement of two images, target and reticle, at the same focal point.

You check parallax not by the clarity of your reticle but by moving your head slightly to see if the reticle and target do not stay stable - ie the aimpoint of your reticle does not stay glued to the desired point of impact on your target.

Look at a wall switch.

Place your pointer finger in contact on the tip of the switch and move your head.

No matter where you move your head you view your finger in contact with the tip of the wall switch.

Now move your index finger to a point half the distance between your eye and the wall switch.

Place the image of the tip of your finger on the tip of the wall switch, think of your finger tip as a front sight post, place it on the end of the switch.

Now move your head - the finger tip and end of switch do not maintain "contact".

You have parallax.

Its a different animal than reticle focus.
 
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Can it be done on less then full power ?
Yes. Ilya Koshkin has a video somewhere that discusses how medium power and smaller reticle image allows a finer focus. As you are experiencing, a large image has a wide range of diopter focus.

Edit: Here
 
I ended up backing the magnification way back. At full power it pretty much didn't matter where I set it.

We shall see how it plays out at the range.

Thanks for all your input.
 
You can get by with a reticle somewhat out of focus, your eye will do the adjustment.

The downside is eye fatigue over time. Ideally your eye does no work beyond seeing when looking down the tube.

More important you get your parallax as tight as possible and again don't sweat that so much if you have good mechanics and consistent interface with the rifle.
 
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