is there anyone out there who might be able to suggest a way that an older (62) person could use express sights. i cannot focus on the rear sight and still see the target. my bi focals allow me to see the target but not the rear sight. an aperature sight works well, but i wonder about using it in the field in fading light. i would rather stay away from the scopes etc. but that may not be feasable. i tried the lyman aperature on the shooting glasses but i don't think it will work in the bush, and it was a pain on the bench.
Of the three, front, rear,and target , you should always focus on the front sight !I would think that a ghost ring sight would be better as the ghost peep is automatically centered to the eye.Any peep on the glasses will definitely not work. For me a 1/8" square post and 3/16" ghost ring works best but you can vary those for what's best for you.
W/o gettingto a lot of detail, you want your eye doc to set the focal lenth of your glasses to tiwce the distance from your eye to the front sight of your rifle (say "24" times 2= 48") This is called "hperfocal length")
I would estimate offhand that the correction that will allow you to see a crisp front sight and a decent target will be about .75 less (+) than your infinity script. (so, if your infinity script is say -3.00, your new script should be around -2.25)
If your eyes are not that bad (say -3 to -4), a smaller sized hunting aperture (.1", maybe 1.2") would give you both a crisp front sight AND a decent target (apertures increase depth of field or better distance and close(r) focus)u Unfortuneately, you are likely out of luck with express sights, though (me too, for the most part). Presbyopia (inflexible lens) sucks.
