A Corrective Lens

[Matt]

I would like to know (from the very experienced air pistol shooters) what corrective power do you make your lens to enable a clear sight picture. By this I mean what is the correction between your 'street lens' and your 'shooting lens'.

[Roly]

Hi Matt. The short and best answer is whatever works for YOU. Go see your optometrist. Mine lets me bring my gun into the exam room and fits me with a lens which gives me the "perfect" sight picture.
That being said I still use a diopter over the lens which allows me to accomadate the greatly varying sources and intensities of lighting which exist at various ranges.
I think your question is very well intentioned but it is a lot like the "Which is the best gun/pellet/propellent?" type of question. There is no simple answer.

[RobStubbs]

I have just had a lens made for me be a specialist shooting optician. Mine is 0.75 correction although I've heard 0.25 - 0.5 is standard. Apparenetly I'm slightly long sighted anyway. The best thing though is to see an optician with your gun (make sure you agree it with them though) and see what works best.

Rob.

[Alex]

If y
ou haven't already, read "The Eyes Have It." in Nygord's Notes(www.nygordprecision.com). Part of a great shooter's legacy. Thanks Don.

Hold center,

Alex

[Mac]

My OD has crafted a pair of glasses such that the focus is somewhat past
the front sight. The target is not sharp, but the front sight is. At the bottom of the glasses is a small section with a close focus so that
I am able to read a program or the like. Works very well.

Having the target be out of focus is an advantage. It helps one to keep
focus on the front sight! Mac Michigan

[F. Paul in Denver]

Roly,

I just received a set of four power lenses which are also designed for over the lens use on my Champion frames. The lenses, which range from .25 to 1.0 magnification, just snap right on to the existing prescription lens.

My problem though is that once installed they fuzz up the front site. On the hand, if I just hold the power lens in my hand without attaching it and move it away from the prescription lens about 3/4 to one inch, the magnified sight picture clears up nicely .

My question to you is - how does your power lens attach to your frames? Does it attach right over the prescription lens or is there some space between the two lenses??

Thanks

[guest]

might want to be careful, issf rules you can only use one lens at a time

[aurorapolice02_11]

Paul,

I think what happens when you put one lens over another, it tends to allow for reflections to "bounce" around between the two lenses. If you could find an anti reflective coating it may help, but I don't know how easy that will be without having it professionaly done.

As far as the other post...what ISSF does not allow for lens use like this?

Mike Douglass

[R.M.]

We've had this discussion before about the "More than one lens rule", and nobody can quote a rule number to verify that it's more than urban legend. It is possible that it used to be a rule, but isn't now.
Come on people, let's dig out your rule books and find this rule.

R.M.

[David Levene]

Come on people, let's dig out your rule books and find this rule.

....or alternatively you could spend your time doing something productive ;-)

There is no rule that I know of to stop you having a lens, or system of lenses, on shooting glasses, at least for the aiming eye. Whether any particular setup for the non-aiming eye could be classed as a blinder is another matter.

[RobStubbs]

Roly,

I just received a set of four power lenses which are also designed for over the lens use on my Champion frames. The lenses, which range from .25 to 1.0 magnification, just snap right on to the existing prescription lens.

My problem though is that once installed they fuzz up the front site. On the hand, if I just hold the power lens in my hand without attaching it and move it away from the prescription lens about 3/4 to one inch, the magnified sight picture clears up nicely .

My question to you is - how does your power lens attach to your frames? Does it attach right over the prescription lens or is there some space between the two lenses??

Thanks

I would suggest you would be far better to get a specific lens made up for your shooting glasses. As you say with two lenses they will interact with each other and you will get problems with relection / refraction. And by the sounds of it you never get a clear foresight picture which is the whole point of a lens.

Rob.

[R.M.]

You should also be aware that all lenses are not created equal.
Recently I went to see my optometrist, who I feel is very good and understands what I need. I have 2 pair of shooting glasses, and ordered a new aiming eye lens for both pair. When got them, one was OK, but the other was unusable. The rear sight looked OK but the front was blurry. I took them back and they checked the prescription, and they were both the same, the difference was that the one lens's focal center was offset a bit. This was enough to make the lens junk.
Moral of the story, ask for zero tolerance when they grind the lens. It doesn't take much of an error to make a lens useless.

R.M.

[Fred Mannis]

Moral of the story, ask for zero tolerance when they grind the lens. It doesn't take much of an error to make a lens useless.
R.M.

Interesting story. Norman Wong, an Optometrist and bullseye shooter has discussed this and many related issues on bulleye-L. He makes the point in one post that many labs do not fill a lens prescription exactly +/-0.125 diopter being acceptable and +/-0.25 not unusual. He says that the shooter must have his optometrist carefully measure the lens parameters before accepting the lens from the lab.
His 'Bullseye Shooters Guide for the Eyecare Professional' is a easy way to help a non shooting eye docter understand our needs.

[F. Paul in Denver]

Unfortunately, I bought the lenses BEFORE I read the venerable Dr. Wong's terrific treatise on the eyecare needs of shooters.

[Guest]

Check this out.....from airgunsonly.com .....

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[guest]

how can I contact you to order lenses. I already know which lenses I need, Im dont need to use the test kit.
Ted
tchmielewski@hotmail.com