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Posted: 3/9/2017 10:34:14 PM EDT
| On ACOG's like the TA31 is there a focus ring to sharpen the focus for us guys with aging eyes ? |
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ACOGs were made for young (Soldiers/ Marines) eyes with no focus on the optic to break.
It's stil usable if you have vision that... "can kinda get by without glasses but might be a little blurry" But... there is no way to focus the reticle sharp if your eyes can't do it. |
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They're military optics designed for Soldiers who will either be 20/20, or will be issued and using corrective lenses Issues making them 20/20. As such a focus ring is unnecessary for its intended purpose.
The "accu" line, marketed at a wider swathe of shooters, does have one. |
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It is called overdrive past infinity. For example, all expensive binoculars have it and adjust to a certain degree. Leica has the worst up to -4 diopters, swarovski is in the middle with -5.5d and zeiss has the best at -7d.
Back to scopes your best bet is to check out zeiss scopes. I think Schmidt and Bender also has overdrive past infinity but not sure how many diopters. It depends on how bad the myopia is. |
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I had better than 20/20 vision my whole life. Then I turned 50, 3 years ago, and started to realize my arms are too short. I wear reading glasses now. Very annoying by the way.
I have a couple ACOGs and have never once wished there was a focus knob like a scope. Don't know how they do it but I don't really care. Glass is crystal clear and in focus. |
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Quoted:
Thanks for the replies. I was just wondering about this because I've become farsighted with a astigmatism. I sure don't want to drop 1300 bucks and find it blurry. I would definitely try to find one locally and look through it before you buy. Especially if you're wanting the 4x the short eye relief kills it for a good amount of people. |
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Quoted:
TA11 for the win, only like 4 oz more and perfect eye box. If you really want the best ACOG, TA11 is it. I often hear it's only 3.5X, and my answer is always the same, Leica binoculars, never leave home without them. Educate me . What's different other than one is 4x and one is 3.5x ? |
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farsighted - I thought you had myopia. That's a whole other animal there. I still think you might benefit from a higher-end scope.
All ACOG scopes are a compromise of some kind. You are playing here with different variables. You have to pick 2 or 3 out of 5, or so. e.g. a scope that is high power and great on eye relief will not have the best FOV. High power in the context of 3.5-4x. And a scope that's great on ER and FOV will not have great power, not be bright, but be compact. Case in point, TA44. Then you have a scope that's high power and great FOV but terrible ER, case in point TA31. Then you have a scope that's good on power, great on ER but terrible FOV - case in point, TA33. The greater the objective lenses, the more light it gathers, the brighter it looks. 15mm objective will not gather as much light as 35mm no matter what power. Then you have scopes that hit most points, like TA11 that has power, great ER, great FOV but kind of poor on size and great on brightness. It's 3 times as big as the mini ACOGs. The TA11 does not compromise. It's still a rather compact scope compared to other optics. 1. Power 2. Eye relief 3. Field of View 4. Brightness 5. Size |
| I have pretty horrible eyesight and I can see through my ACOG (TA31F) just fine with my glasses. In fact, like others have said, the optics are so crystal clear there's no need for any focus adjustment. Now I WILL say the reticle can be hard to focus on if you're trying to use it say in your living room or some other closer distance. But for anything past about 30ft there is zero trouble! I shoot with my non-dominant eye too. I wish to hell it was the other way around because as good as that glass looks with my right eye, it's even better out of my left (dominant) eye. But dang it I cannot shoot lefty! |
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Reticle choice... Don't get red! It's the most difficult color to see and goes bad fastest, green lasts much longer. I had a 1 year old ACOG TA11 with the donut that was almost impossible to see. Unless you waited in the darkness and then slowly began to see the donut. I sent it back to Trijicon and they said it was within specs.
I got a green reticle and the difference is just astounding. It's not really green but this neon type color that's electric bright and pops at you, no way can you ever lose in heavy foliage. My favorite variants are J and H but you cannot go wrong with any of them really. Chevron just doesn't rhyme with me, nor does amber. |
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