After all this, I am still waiting to get an explanation of the actual causes of parallax. My reference to a simple diagram showing a reticle and objective lens was disparaged but nothing was offered to replace it.
Continuing on with my first link ... "If you see a scope in which the apparent movement of the reticle compared with the image viewed is different from when you move your eye up and down than when you move your eye side to side it is because of a bad objective". To me this might be sort of like the scope is suffering from astigmatism (squashed eye ball) rather than the shooter.
Do we need to discuss the fine points of where a parallax adjust ring is located on the rear or ocular end of the scope? Possibly a discussion of how a rear mounted parallax adjustment ring works would be more helpful. I have this type of thing on my 10X42 SWFA scope, inexpensive but adequate for my needs
Nobody knows what the condition of a person's eyes except his or her optometrist. A more productive response might be - let some young person (they have great eyes) try to duplicate the problem. Our family optometrist tells me astigmatism usually is indicated by blurry vision and inability to focus. Should I experience a situation where one of the reticle cross hairs moved when the other at right angle did not move I would rotate the scope 90 degrees and take a second look - a cheap vision test.
Continuing on with my first link ... "If you see a scope in which the apparent movement of the reticle compared with the image viewed is different from when you move your eye up and down than when you move your eye side to side it is because of a bad objective". To me this might be sort of like the scope is suffering from astigmatism (squashed eye ball) rather than the shooter.
Do we need to discuss the fine points of where a parallax adjust ring is located on the rear or ocular end of the scope? Possibly a discussion of how a rear mounted parallax adjustment ring works would be more helpful. I have this type of thing on my 10X42 SWFA scope, inexpensive but adequate for my needs
Nobody knows what the condition of a person's eyes except his or her optometrist. A more productive response might be - let some young person (they have great eyes) try to duplicate the problem. Our family optometrist tells me astigmatism usually is indicated by blurry vision and inability to focus. Should I experience a situation where one of the reticle cross hairs moved when the other at right angle did not move I would rotate the scope 90 degrees and take a second look - a cheap vision test.
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