07-15-2013, 02:07 PM
LR,
I always adjust parallax by wiggling my head around behind the scope before shooting. I've been in the habit of setting it and forgetting it though. That is, unless I changing range.
Yesterday though, out of curiosity, I decided to do the jiggle test after powering the scope down. I noticed the parallax, and I noticed a relatively greater error across a greater portion of my target (smaller magnification, smaller target). When zoomed in at 32x the error seemed much finer relative to the target size. After adjusting parallax out at the greater magnification, it appears as if I have to adjust it again after moving to the lower magnification.
It's almost as if the error is behaving as if it's second focal plane, and that it isn't simply a one setting fits all across the magnification range. Well, that's all based on my observation from yesterday alone. Perhaps it's a peculiarity of the less than stellar optic I was using? It was an old Tasco, I think.
I always adjust parallax by wiggling my head around behind the scope before shooting. I've been in the habit of setting it and forgetting it though. That is, unless I changing range.
Yesterday though, out of curiosity, I decided to do the jiggle test after powering the scope down. I noticed the parallax, and I noticed a relatively greater error across a greater portion of my target (smaller magnification, smaller target). When zoomed in at 32x the error seemed much finer relative to the target size. After adjusting parallax out at the greater magnification, it appears as if I have to adjust it again after moving to the lower magnification.
It's almost as if the error is behaving as if it's second focal plane, and that it isn't simply a one setting fits all across the magnification range. Well, that's all based on my observation from yesterday alone. Perhaps it's a peculiarity of the less than stellar optic I was using? It was an old Tasco, I think.