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Help focusing eyepiece

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/21/2014 at 08:59
Lennyo3034 View Drop Down
Optics Apprentice
Optics Apprentice

Joined: April/01/2010
Status: Offline
Points: 59
Throughout all my uses of riflescopes, I have never been confident in my eyepiece settings.
I know the proper way to do it. I usually point it at the sky or a blank wall and adjust it until the reticle is most clear.
However I find it difficult to tell a difference once I go into the "-" diopter settings. This is especially true for the locking eyepieces. I usually end up screwing it in all the way at maximum "-" setting and calling it good.
This used to make sense to me as I was nearsighted, although I would always shoot with contacts. However, last year I got lasik and it changed the way I see everything. I no longer see a bloom on aimpoints. I also used to use a +.050 lens on my rear sight for my NM M1a, this I have now taken out and shoot better than before with plain irons. However for scopes, I still end up setting it all the way in.
Last night, I was messing around with a brand new vortex viper PST 2.5-10X32, trying to figure out the correct eyepiece setting. I tried doing it the wrong way, focusing on the target across my house instead of the reticle. Parallax was set at the minimum setting. I the adjusted the eyepiece to where the target looked most clear. It ended up about half a turn short of all the way in. I know this is not the correct way to do it, but it produced the best image.
Should I try doing this on my other optics? Or just screw them all the way in like I've been doing? For my binoculars, I find that I can get the best image when I set the diopter to a neutral setting.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/25/2014 at 06:05
Skytrash View Drop Down
Optics Apprentice
Optics Apprentice

Joined: October/07/2014
Location: Florida
Status: Offline
Points: 69

I was wondering the same thing, because my vision has been heading south lately. I found this video helpful.

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