Rifle Scopes Question about adjusting diopter for scopes with no parallax adjustment

[kds857]

I have a Trijicon Accupoint TR25 1-6. When I adjust my diopter to the 3 o'clock position (90 degrees from the +/-0) it happens to be perfect in terms of crisp reticle and crisp image when I'm at 1x. However, when I go to 6 power and look at something far, the image becomes slightly blurry and I'm having to adjust the diopter even more to the right (maybe to the 6 o'clock position or further) in order to have a crisp focused image. Now if I keep the diopter setting that gives me crisp images at 6x and I zoom back to 1x, the 1x is off a bit and I have to readjust.

I know for scopes with regular reticles and parallax adjustment knobs the usual advice is to look at the sky, focus eye piece until the reticle is crisp and never touch the diopter again -- and to use the parallax knob to focus the image at various distances. But for scopes without a parallax adjustment knob, does the diopter need to be adjusted when trying to focus an image at various distances?

Or is my eye funky...

If this is a noobie question of scope mechanics, sorry.

 

[MWM-5150]

Have you tried adjusting the diopter to be true at Max magnification? In general, you should always set a scope at max mag to determine the optics position on the rifle and for setting the diopter since its always the most sensitive position. Have you adjusted the optics position on the rifle at all? It may just need some fine tuning. Follow the procedures in the "PSA on Diopters" sticky.

 

[kds857]

Thanks for your reply. I will try adjusting the position to see if that changes, but like I said, when I adjust the diopter to be good at max mag (6x for my accupoint), its slightly off/blurry at 1x when I zoom back.

Also, I've only noticed this with my Accupoint. I have a Meopta ZD 1-4x that does not do this, and I have a Razor HD Gen 2 4.5-27 and a sightron S3 that doesn't do this.

Maybe its something particular to this Accupoint...

 

[MWM-5150]

That sounds funky. You may want to contact Trijicon as something may be out of adjustment. On every scope I own, once I set the diopter I rarely ever touch it again, regardless of magnification.

 

[Deleted member 10043]

Fixed parallax, right. That is a focus eye piece.