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Explain parallax on a scope to me
Posted on 12/26/23 at 8:50 pm
Posted on 12/26/23 at 8:50 pm
Changing parallax on a scope from 100 yards to 250 yards isn't adjusting the scope for greater distance but rather focusing the reticle to be clearer at different yardages?? Am I correct in this statement. Its confusing and I think some think when you turn that knob its actually moving the scope but I think its just making the focus of the reticle more clear not moving the sight of the scope.
6
Posted on 12/26/23 at 9:16 pm to tigereye58
That’s about how I understand it, but it confuses me too.
Like I just got a scope and the lowest setting is 20 yards and the highest is “infinity” but the halfway point is 100… I are confused
Like I just got a scope and the lowest setting is 20 yards and the highest is “infinity” but the halfway point is 100… I are confused
Posted on 12/27/23 at 5:20 am to tigereye58
As I understand it, you’re adjusting the target image forward/backward to match the focal plane of the reticle
Posted on 12/27/23 at 6:46 am to tigereye58
Also if the parallax isn’t set correctly when you move your head behind the scope the reticle will shift. It the parallax is set correctly if you live your head behind the scope the reticle should stay on target.
Posted on 12/27/23 at 7:38 am to civiltiger07
quote:
Also if the parallax isn’t set correctly when you move your head behind the scope the reticle will shift. It the parallax is set correctly if you live your head behind the scope the reticle should stay on target.
And that's basically what you're trying to accomplish. It means the point of impact will be where you perceive the reticle to be at the range you are shooting. Theoretically you can change that relationship with eye position if the parallax is way off.
I dont think it matters if you aren't trying to win a trophy.
Posted on 12/27/23 at 7:53 am to tigereye58
My VX6 has side focus and I’ve never really put that much thought into it. I just adjust it to about the distance I think I’ll be shooting. Generally hunting hardwoods so I typically leave it on “50” but if the woods are pretty open I’ll set it to “75”. If shooting at a 100 yard range, I set it to “100”.
I haven’t missed yet and if I do miss, that’ll be the last excuse I use lol
I haven’t missed yet and if I do miss, that’ll be the last excuse I use lol
Posted on 12/27/23 at 9:59 am to tigereye58
quote:
Your eye can only focus on one place (distance) at one time.
Your scope mechanically allows to have focus at two different distances.
First understand what parallax is.
Go stand by a light switch in your house.
Bend your dominant side arm at a right angle with index finger extended up.
Move that index finger so that it's tip is now covering the tip of that light switch. Line your eyebal up with tip of finger so line of sight is placing your finger tip on tip of switch but you are not actually touching the switch.
Your finger is on a focal plane halfway to the switch and the switch tip is on a focal plane a foot or so distant but when your eye is directly in line with the two objects the fingertip will cover the tip of the light switch.
Now move your head.
You will see that your fingertip and light switch will move opposite each other. Your finger tip (reticle) does not stay on the light switch (point of aim).
That is parallax error.
Now extend your arm so that your finger tip is touching the tip of the switch.
Move your head.
No matter where your eye is your fingertip (reticle) remains superimposed on the switch tip (point of aim).
The two focal points, finger (reticle) and switch tip (point of aim) are on the same focal plane and there is no parallax error.
Your scope allows you to take two objects, reticle and target, and superimpose their images on the same focal plane, elimination of parallax error.
If you reload, think of your balance scale......if your eye is not exactly level with the readout marks than you will not get a true weight. If your eye is high the reading will show low and if your eye is too low your weight reading will be high. This is parallax error also.
The second example is what you would experience if you have a fixed parallax scope. Why it's important to always get your eye directly in line with the reticle cross hair.
I stole this from snipershide, its a good way to visualize parallax.
Posted on 12/27/23 at 10:34 am to tigereye58
Simple.
If you shoot at 100 yards put parallax at 100yds and shift your head side to side. Cross hair shouldn't move.
It also focuses the lens at distance. If you set magnification at the highest power and look at something 500 yards away with parallax set to 0, it will be blurry.
Just set it to the distance you're shooting.
If you shoot at 100 yards put parallax at 100yds and shift your head side to side. Cross hair shouldn't move.
It also focuses the lens at distance. If you set magnification at the highest power and look at something 500 yards away with parallax set to 0, it will be blurry.
Just set it to the distance you're shooting.
Posted on 12/27/23 at 12:51 pm to saintsfan1977
The balance scale explanation is by far the best I’ve ever heard of.
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