New Posts New Posts RSS Feed - Aimpoint’s dot does not look round??
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Check for SWFA's No Reserve and No Minimum bid firearm auctions.

Aimpoint’s dot does not look round??

 Post Reply Post Reply   Topic Search Topic Search  Topic Options Topic Options
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/04/2004 at 12:21
Chris Farris View Drop Down

Joined: October/01/2003
Location: Texas
Status: Offline
Points: 7760

The dot in my Aimpoint sight doesn't look round.  Is it defective?


If your dot does not appear to be perfectly round, the distortion is probably caused by the way that your eye perceives the dot, rather than by some mechanical defect.  Due to differences in the lenses in different individual's eyes, round objects that subtend areas near 3 minutes of angle may appear distorted in a variety of ways depending on the individual and other environmental influences.  Inexpensive red dot sights sometimes have manufacturing defects that can cause the dot to be an odd shape.


A simple test that can be easily performed will allow you to determine the cause of the apparent distortion.


1.  Turn the sight on and look through as you normally would.  (This test is easiest when not mounted on a firearm, but can be performed with the sight mounted as well.  Just make sure that the firearm is unloaded and pointed in a safe direction.)


2.  While continuing to look through the site, roll the sight on its optical axis.


3.  If the dot's irregularities seem to revolve around the center of the dot like the spokes of a wheel, there is a mechanical defect causing the distortion.  If the dot does not roll with the sight, the distortion is caused in the way your eye perceives the dot.  This is not to say that you don't have good vision.  You can see clearly and still see a distortion in objects this small.


The effect is less pronounced in sights with larger dots.  More people will see the dot in a sight with a 10 minute of angle dot as being perfectly round than will be able to see a 3 moa dot as round.

 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Similar Threads: "Aimpoint’s dot does not look round??"
Subject Author Forum Replies Last Post
Is your dot not round in your Red Dot Sight? Chris Farris Rifle Scopes 0
I'm looking for info on AimPoints 9000L CarbineKid Tactical Scopes 1
looking for a mil dot scope CD82 Rifle Scopes 4
Looking for Mil Dot scope deadon Rifle Scopes 4
Looking for Red Dot for my AR RJ_Whitlock Tactical Scopes 12
Eotech 512 vs Aimpoint Red Dot traub Rifle Scopes 2 9/12/2007 12:40:09 AM
Aimpoint Micro & Red dot distances bolivarjoy Tactical Scopes 1 10/23/2007 10:22:27 AM
Simply looking for a rifle reticle with a dot garyalarson Rifle Scopes 13
Looking for a good red dot sight. ghost82 Rifle Scopes 4
Looking for in-expensive Mil-dot scope Yotimbo Rifle Scopes 7

This page was generated in 0.359 seconds.