![]() Originally Posted By: LowlightParallax and Focus are not the same. It's like going to the eye doctor when he asks, better or worse, while changing the prescription. It is not uncommon for the target image to be slightly out of focus. Now the pencil and target, my logo is on the same focal plane. if the pencil is between you and screen, it has parallax, now to adjust it out, move the pencil point to the screen and touch it. Away we demonstrate this, is, take a pencil and put it between you and the screen, aiming at my Avatar. The reticle will then float on the target if there is parallax in the system. Movement of the head / eye has to be without causing shadowing of the sight picture. Look at it like this, shooting iron sights, the target is not in focus, you focus on the front site and this along with consistent cheek weld minimizes the error, because there is natural parallax in that system. you can be in focus and out of parallax, and because parallax is a function of distance the shooter's eye sight will determine the correct focus. How do the two relate? Hopefully I explained this with enough clarity. The NF definition of parallax seems to have NO mention in regard to "image clarity" however whenever I use the knob that is the effect I'm gaining. When I went prone I noticed my sight picture was incredibly blurry which brings me to my main point. As I ran to the 65 yard FP I dialed down my dope as well as my power to 10x. I had to adjust the parallax knob slightly before taking the shot for target clarity. The longer shot was first so I had my NXS cranked to 22x due to shooting "ringed" targets with a very small 10 ring. The event was timed which added another "stress" factor. 5 mile trail run with your equipment and taking two UKD shots, which ended up being 196 and 65 yards respectively. Taking the above definition into consideration I've become more confused in my endeavor to understand this concept.for example: I shot a short range stress drill yesterday which involved running a. My NF manual defines parallax as "the apparent movement of the reticle in relation to the target as the shooter moves his eye across the exit pupil of the riflescope, caused by the target and the reticle being on different focal planes". I'm wishing to understand the use of this feature as well as the terminology regarding my 5.5-22x50 NXS.
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