Trijicon Mk3 60mm Y settings change with magnification?

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Bigdwebster

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I have always sighted this thing in on 4x and I always record my x and y settings. But today I ended up with a y of -6.75 on 4x. But when i went back to check my coordinates on 1x it was y -6, on 2x it was y-6.5 and on 4x it was y-6.75. Can anyone school me on this?
 
Read in the manual. my manual has a table showing click values on different magnifications. They are not the same for all magnifications.
 
I have read my manual and I understand the adjustment value per click is different at different magnifications. I could understand if it rounded down on lower mag. But why it goes from 6 to 6.5 to 6.75 doesn’t make sense. Once its zerod it should be the same zero on any mag.
 
I'd say the bigger issue is whether POI is the same at all of those settings. I would definitely to want to shoot all 3 of those powers to see.
 
I was going to try that but I zero everything at 200yrds and If I shot on 1x which would be 4.5power Im not sure I could aim precise enough to be able to tell much.
 
Shoot it at 100yards then if your just trying to see if you have POI shift. If they are all in the same group does it matter what you zero is?
 
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Originally Posted By: BigdwebsterI have read my manual and I understand the adjustment value per click is different at different magnifications. I could understand if it rounded down on lower mag. But why it goes from 6 to 6.5 to 6.75 doesn’t make sense. Once its zerod it should be the same zero on any mag.

Nothing is changing with regard to POI when you change the magnification. When you select a higher magnification you change the pixel count on the screen so each click of reticle movement is changed as it relates to the amount of MOA change you will get. If you notice that value adds one digit to the x / y values as you increase magnification.

The change you will notice will be on sight in. You get full movement per click at native resolution. As you increase magnification you will decrease the amount of POI shift per click of reticle movement. When sighting in it’s better to start at 1x native and then increase your magnification so you can fine tune your POI since you will get less POI shift per click.

Just keep in mind that you are looking at a software driven image on a tiny screen.
 
1x,2x,4x,8x do not refer to 1 power 2power 4 power magnification . It refers to x being the native magnification times the first number. So a mk2 20mm is1.5 native power. At 2x you are at 2 times 1.5power for magnification of 3. At 4x you have 4 times1.5 or 6 power. Likewise for higher values.
A mk2 35 has 2.5 native magnification. So 2x is actually2 times 2.5 for magnification of 5.
A mk3 60mm has native of 4.5 so 2x is actually 9 power magnification.
This is why you lose resolution in close with 35 and 60mm. Compared to 20mm.
At longer ranges the 35 and 60 mm give better resolution although field of view is much less.
This is all confusing so hopefully this is accurate and helps
If I am wrong on this please feel free to say so.
 
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Originally Posted By: Gman757Originally Posted By: BigdwebsterI have read my manual and I understand the adjustment value per click is different at different magnifications. I could understand if it rounded down on lower mag. But why it goes from 6 to 6.5 to 6.75 doesn’t make sense. Once its zerod it should be the same zero on any mag.

Nothing is changing with regard to POI when you change the magnification. When you select a higher magnification you change the pixel count on the screen so each click of reticle movement is changed as it relates to the amount of MOA change you will get. If you notice that value adds one digit to the x / y values as you increase magnification.



The change you will notice will be on sight in. You get full movement per click at native resolution. As you increase magnification you will decrease the amount of POI shift per click of reticle movement. When sighting in it’s better to start at 1x native and then increase your magnification so you can fine tune your POI since you will get less POI shift per click.

Just keep in mind that you are looking at a software driven image on a tiny screen.




Gman explained it exactly with Precision +1 on all he said.
 
Good Afternoon Daniel,



I was able to get some information from our Engineering Supervisor who is familiar with our Thermal Optics, and I have placed it below:

On the thermal scopes we can only make adjustments per the pixels shown on the display.



At 1X you are making 1 pixel adjustments on the display. When you zoom we add an additional row and column of pixels between the original pixels, this added precision to your shots allows you put your aim point in between the original pixels. If the location between pixels is more accurate at 2X, you are now at the location 6.5; between pixels 6 and 7 from the center.



Going from 2X to 4X you add another set of rows and column between the pixels seen at 2X. At 4X if a more accurate zero position is in between pixels 6.5 and 7, you are now able to place your aim point at pixel location 6.75.



As you zoom out and go back to 2X, you lose the additional row of pixels and the closest you can aim at is 6.5, and at 1X is 6. This tells you the pixel location to the most precise location possible, but as the accuracy increases with zoom the location updates accordingly.


Thanks everyone for replying. You guys were spot on. I just thought I would update with the email I finally got back from Trijicon. It does look like the zero is changed on every power. However its not enough to tell it much. Thanks again
 
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