I'm a little confused as to how this works...

[Agent Tikki]

I had the opportunity to handle an Eotech XPS2.0.

When I put this Sights down on the table.....look through the glass, and move my head to the left and right....the reticle moves with me.

If the point of aim shifts as my position shift, but the sight does not move...doesn't this make the the sight pretty much....useless?

Please explain my observations and how to counteract this.

I mean...If my head was always in the same position relative to the sight...ie good check weld on the stock etc...I don't see this as being a problem...but if I shift my firearm around tracking a target etc.....my eye would not be in the same position and poa and poi would not be the same....right? what's going on?

[peter95]

im curious too.... Im glad I found this post. I came here to post the same question.

[Agent Tikki]

GETT OFF MY THREAD, you jacker..... :P

[d4v0s]

The sight might look like it moves... It does not, you need to mount it too a weapon, point it at the target, you will see that while the reticle looks like it "moves" the point of aim doesnt...

[Agent Tikki]

[QUOTE=d4v0s;6825282]The sight might look like it moves... It does not, you need to mount it too a weapon, point it at the target, you will see that while the reticle looks like it "moves" the point of aim doesnt...[/QUOTE



But it does..... me and my friend set it on the table. Looked through it. Saw the reticle and used the light switch as a focal point for the POA. Then shifted our heads to the right or left....POA moved. Its just like looking at the front sight, without looking through the rear sight. Shift your head lh or rh and the POA moves with you.

could this be a fakey?

[d4v0s]

A real eotech is parrallax free, but realistically nothing can.. how far away was the light switch.. try making the Target 25 yards away and the reticle won't move. Sounds like you were too close. Also a cqb sight that moves a couple inches at 10 feet close objects isn't bad..

Might be a fake tho

[peter95]

thats true. seemed like further the target was, the less it moved. If you talk about 25 yards, im sure it would barely move.

[Agent Tikki]

Time to check it out again.......

totally forgot about parallax.......

[HK Dave]

The reticle is only moving in the eotech... it is not moving as it relates to what it is aiming at. If you see slight movement... it's because what you are aiming at is too close. No sight is truly parallax free.

Try it outdoors and aim about something farther away. Leave it on a table or whatever and look at the point of aim as you move your head left and right while NOT moving the eotech.

[MrPlink]

how does it work?


actually check this article out for the basics:

http://ultimak.com/UnderstandingE-sights.htm

[RoundEye]

Interesting. I thought the whole advantage of an EoTech was its versatility for CQB scenarios.

[KaLiFORNIA]

Might be fake. My eotech doesnt have that issue

[brando]

The EOTech's don't work the same way the Aimpoints do. Instead of a reflectived illuminated dot, it uses a hologram which will shift its apparent position inside the optic depending on the angle of incidence between your eye and the flat "window" the reticle sits in. This is what makes it unique and VERY effective when trying to shoot from a vibrating vehicle (or helo) or when you can't get a decent cheekweld.

To be clear - as long as you have zeroed the optic, from that point forward, if you can see the reticle and place it on the target - regardless of how you're holding the rifle or where your eye is in relation to it - your POI will be within POA.