Positioning of shooting glasses?

[Jordan1s]

Hello,

I was wondering, should the shooting glasses be placed as close to the eye as possible, or as close to the rear iris as possible? The Air Rifle shooting book says to place it as close to the eye as possible(without a clear explanation as to why), but, from what I have observed, a large majority of the shooters put it as close to the rear iris as possible, which begs the question, which is it? What are the advantages/disadvantages to one placement as opposed to the other?

Any help is appreciated!

thanks!

[patriot]

Far away enough from the rear sight it doesn't get scratched on the recoil, far enough away from your face that it doesn't fog.

Mark

[mtncwru]

As close to your eye as you can get without fogging the lens. The reason for getting it close is because your prescription changes depending on how far the lens is from your eye. When your optometrist writes an Rx, s/he assumes that the lens will be fairly close to your face. Having it close also means you are better able to look through the optical center of the lens.

[Spencer]

I was wondering, should the shooting glasses be placed as close to the eye as possible, or as close to the rear iris as possible? ...

This is a question for your optometrist, not for any non-specialists. When your optometrist determined the needed script for the shooting lens this would have been on the basis for a given vertex distance (the distance between the back surface of a corrective lens and the front of the cornea).
One of the reasons why it is essential that you take your shooting frames with you for the optometrist's examination.

[patriot]

This may be more than you asked for ...

An optometrist can get you close, but it is my experience Art's test lens kit (Shooting Sight) will get you closer. To some extent the shooting frame engineering and your head dimensions will determine the distance. I can get lenses for my Jaggi shooting frames cheap, so I have three made at a time (+ 1/4 +0 -1/4) to allow experimentation. If it seems the target is getting too sharp or the front sight not sharp enough or my eyes are tired at the end of a match I can swap. If the target isn't nice and round due to my astigmatism changing I experiment with rotating the lens, which has a small reference mark on the side made with a permanent marker so I don't get lost. Eye sight varies greatly from individual to individual. My eyes are very glare sensitive. In the winter when the sun is low I have difficulty seeing the target when shooting north with irons. I invented a front sight glare filter that Art now sells. I get no royalties; gave it away for the good of the sport. As the light goes up and down I adjust the rear iris. Some folks use color and polarized filters, but with my eyes they caused eye strain after a bit.

At lunch yesterday with ten or so shooters I did a quick eye survey. Only two didn't have blue or green eyes and they don't usually shoot at the top of the pack. So, does light sensitivity help or is it just that folks descended from the north love shooting? Interesting question. Everyone's eyes are different. The white/gold or blue/black dress test on the Internet is a case in point.

Mark

[artandscience]

This is actually getting interesting..

Saw a reference to the number of cones in the eye today (tetrachromacy) in this article (also explains - perhaps - why I had no difficulty discerning the dress was gold and white):
https://www.linkedin.com/pulse/25-peopl ... ana-derval
(NB: potentially not that useful as there is a report that computer monitors cannot represent colors well enough or completely enough to do a proper test.)

But still.. it's quite possible that different eye structures (or colors) may mean that we see "differently" from one another - beyond the question of mere visual acuity.

I do what patriot does - until recently I haven't used color filters (why inject more randomness into my vision).
I am now experimenting with clip-on colored lenses on my Champion Olympics to see whether they can help me with LR shooting. My optometrist is telling me that certain parts of the light spectrum can affect edge contrast and that if we block them out, I can improve it. So.. the question about what tints will help in what light comes up.

[patriot]

Interesting - 4 types of cones.

[BigAl]

This is actually getting interesting..

Saw a reference to the number of cones in the eye today (tetrachromacy) in this article (also explains - perhaps - why I had no difficulty discerning the dress was gold and white):
https://www.linkedin.com/pulse/25-peopl ... ana-derval
(NB: potentially not that useful as there is a report that computer monitors cannot represent colors well enough or completely enough to do a proper test.)

But still.. it's quite possible that different eye structures (or colors) may mean that we see "differently" from one another - beyond the question of mere visual acuity.

I do what patriot does - until recently I haven't used color filters (why inject more randomness into my vision).
I am now experimenting with clip-on colored lenses on my Champion Olympics to see whether they can help me with LR shooting. My optometrist is telling me that certain parts of the light spectrum can affect edge contrast and that if we block them out, I can improve it. So.. the question about what tints will help in what light comes up.

First I have to say that that Linkedin posting has been debunked as completely false. Oh and the dress is blue/black, even if you see white/gold. But then it is a terribly badly exposed and colour balanced image, which is why what happens happens when viewing it. I have to say that initially I saw it as white /gold, but later on a different monitor it started out white/gold but switched after I looked at a correctly exposed version of the image. Now I see pale blue/muddy brown when first looking. The colour numbers support blue/black when looking at the image in photoshop.

Personally I have always found that shooting outdoors with a colour filter helps. All of the colours that I have in my Gehmann iris are better for me than no filter. Although I find yellow to be the best. I even us a yellow filter on my scope when shooting 50m BR. I find that the yellow helps reduce the large amounts of blue light that is randomly floating around out there just nicely, so reducing the apparent haze, which helps the contrast between that target paper and the aiming mark. Actually I use the yellow filter indoors too, as I'm just so used to the way the sight picture looks with it in place.

Alan

[redschietti]

I see the dress as blue and gold. But that isn't the point of the dress. The take home is that we do see the same thing differently. Two main camps, white/gold and blue/black, but also a few odd balls like me. Maybe if you see white/gold you need a yellow filter and if blue black a blue filter?? Who knows