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Parallax #6462863 09/22/16 02:07 AM
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Bradgrace Offline OP
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I'm sure this has been covered but at what point does parallax adjustment come into play? Most 3-9 scopes don't appear to have a parallax adjustment on them. However when you get up to the 4.5-14 scopes some do and some don't. Getting ready to order a new 4.5-14 and weighing my options.

Re: Parallax [Re: Bradgrace] #6463501 09/22/16 04:06 PM
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Skylar Mac Offline
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This is actually a very good question.

Parallax isn't often encountered with low magnification. The thresh hold where one would typically experience parallax is 12X or higher. Often times it is incorporated on rifle scopes that have 10X, because you are able to identify targets out to 1,000 yards. Your capacity may not be able to engage them, however you should be able to identify at that distance.

Once you begin to experience parallax (reticle off center) you will move the correction knob in the direction needed to correct it, meaning you are re-centering your reticle making it parallax free.

Re: Parallax [Re: Bradgrace] #6463591 09/22/16 05:08 PM
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booradley Offline
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Excellent explanation by Skylar. As a rule I don't notice parallax issues from 50 to 350 yards. I also don't own any scopes higher than 10x though.


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Re: Parallax [Re: Bradgrace] #6464402 09/23/16 02:19 AM
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Bradgrace Offline OP
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Thanks for clearing that up Skylar. Sounds like you could be potentially handicapped without the ability to adjust it.

Re: Parallax [Re: Bradgrace] #6464599 09/23/16 10:46 AM
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I think an AO is great for varmint hunting or shooting paper but if I happen to be using a rifle with AO for other purposes I'll usually set it to about 150 yards and leave it there.


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Re: Parallax [Re: Bradgrace] #6468638 09/26/16 02:31 PM
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Skylar Mac Offline
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Originally Posted By: booradley
Excellent explanation by Skylar. As a rule I don't notice parallax issues from 50 to 350 yards. I also don't own any scopes higher than 10x though.


Brad, Thank you. You're right, in most cases your typically will not experience any issues within that yardage. It could happen. Although in most cases, it is not necessary.


Originally Posted By: Bradgrace
Thanks for clearing that up Skylar. Sounds like you could be potentially handicapped without the ability to adjust it.


Brad, it greatly depends on the magnification. On higher mag, the reticle is more likely to appear off center if you do not have perfect head position. If you are using low power, then this is a moot point, because it is not something to be worried about. Just remember, that with using that VX-3, that once you cross over 12X it is likely that some parallax will be detected. Then just move the focus in the direction in the way of re-centering the reticle.

Re: Parallax [Re: Skylar Mac] #6469530 09/26/16 11:16 PM
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Originally Posted By: Skylar@SWFA
Then just move the focus in the direction in the way of re-centering the reticle.


Just for clarification........ You don't move the FOCUS adjustment, you adjust the OTHER end. Unless it's a "side focus" scope. wink

Once the FOCUS adjustment is set it should never be touched again.


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Re: Parallax [Re: Bradgrace] #6469749 09/27/16 01:23 AM
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Yes. The ocular is the end you look into. You set it so the reticle is sharp and don't move it again.


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Re: Parallax [Re: Bradgrace] #6470573 09/27/16 04:24 PM
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Your talking about the diopter. The diopter or commonly known as the fast focus eye piece is strictly for focusing the reticle. That is not what I was discussing above.

As the two latest posted/denoted. This aspect is used to focus the reticle. The correct way to do this is to;
*Set the power selector ring to the highest magnification.
*Index the side focus, rear focus (SS model) or Adjustable objective to infinity.
*Then adjust the diopter out until it stops.

Now make subtle adjustments, turning it in. You will notice that the reticle will become more sharp and in tack sharp focus with this adjustment.
As it begins to become tack sharp, slow down your adjustments.
Once you have located that point where the reticle is TACK sharp leave it.

I advise the guys I talk to when setting this up, to take breaks and allow your eye to rest. Because this process will create some eye fatigue.

However again, once you have completed this process...double, maybe even triple check to make sure it is tack sharp. If it is, leave it alone. Never touch it again.

Now the rifle scope is indexed to you and your dominant eye.

Re: Parallax [Re: Skylar Mac] #6470603 09/27/16 04:39 PM
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Originally Posted By: Skylar@SWFA
Your talking about the diopter. The diopter or commonly known as the fast focus eye piece is strictly for focusing the reticle. That is not what I was discussing above.


I knew what you were referring to ...... but some might not have. The word "Focus" is a bad choice when discussing parallax adjustments.


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