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+--- Thread: You and your diopter. (/showthread.php?tid=23645)
You and your diopter. - PVBoom - 08-21-2021
Posting this here, because its informative. And I have a hangover and am up right now.
A search on diopter didn't turn up something like this, at least on the first page.
So I was over at Snipers Hide and read a thread about properly setting your diopter on a scope w/ parallax adjustments, which is something I hadn't really done before, because I was OK with reticle focus.
But that varies for people and their eyes, and its important. Chances are a bunch of people haven't done this the right way.
Here is the source material: https://www.snipershide.com/shooting/threads/setting-up-a-ffp-rifle-scope-a-simple-psa-on-diopters.6252841/
And the simple instructions.
Quote:[FONT=&]Try this if you're having issues or if you've never setup the diopter and parallax before. I had to figure this out the hard way. I've never seen it clearly spelled in a scope manual that worked. Here's how I do it and the process works.[/FONT]
[FONT=&]1) Set to Max Power[/FONT]
[FONT=&]2) Parallax set to Infinity (this is very important)[/FONT]
[FONT=&]3) Point it at a solid, light background like a white wall or blue sky. You don't want anything except a solid, light color to look at.[/FONT]
[FONT=&]4) Start from the diopter all the way into the occular and rotate out.[/FONT]
[FONT=&]Don't stare into the optic, open and close your eye as you adjust such that you have no more than about 1 second open, 4-5s closed.[/FONT]
[FONT=&]In short order you can get the diopter very closely adjusted such that it will be crisp at all but the finest areas of the reticle.[/FONT]
[FONT=&]Once you're there, small adjustments are made and you should focus your attention to the smallest details such as 1/10th mil hash marks, square corners in the reticle, etc.[/FONT]
[FONT=&]Flick your eye open, then closed. Look at the reticle picture and see if it's crisp. Repeat as necessary until you have the diopter adjusted properly.[/FONT]
[FONT=&]Lock down the ring on your diopter or wrap it with electrical tape and lock it down. Perhaps a sharpie with a witness mark between the occular and diopter ring. Something to reference it for the inevitability that it will get bumped.[/FONT]
I went with sharpie marks. OMG I defiled my scopes, except they are my scopes.
Yeah, its hidden under the caps, but I know where it is, and if I let a buddy shoot my rifle, I can set the diopter back for my eyes now that I have marked it.
You and your diopter. - BlogSarge - 08-21-2021
Thanks PV.
I hadnt thought of locking it down with tape or putting a witness mark on it.
You and your diopter. - SDW - 09-21-2021
I was thinking of marking mine with a paint pen, per my usual way of marking things. Just putting little white or yellow dots where they need to be. Won't wear away easily, but can be removed quickly with a little lacquer thinner if the adjustment need to be... adjusted. Never though of using a sharpie. Wouldn't that be really hard to see? Goes onto a black surface pretty transparent, doesn't it? But I guess as long as you can make out the marks you made, it doesn't matter. Not like they need to be seen from a distance.
I happened to be researching this subject this morning. Found this video. Doesn't mention the parallax situation, so I guess this is how you'd do it on a scope w/o a parallax adjustment. Interesting that they cover how to do it with a long range scope and with a LPVS. And that the process is very different for each.
[video=youtube_share;hmqWiyAENsE]https://youtu.be/hmqWiyAENsE[/video]