|
You shouldn't ever use a reticle focus eyepiece to adjust image focus. It's like chasing rainbows. There are certain distance/magnification combinations that are not possible with certain scopes. That's why when your reticle is out of focus your image is in focus and vice versa. For rear reticle focus rings, set it and forget it.
Keep in mind that an object in focus is not necessarily parallax free,BTW.
Here's an example:
Take a 4-12x scope with fixed 150yd parallax to the range. Turn it down to 4x and the 25yd target is in focus. Now crank it up to 12x at 25yds. The target is now blurry. The maximum parallax error has not changed however!
Short version: If you want to use a centerfire scope at close range, use low power, and keep your eye perfectly centered to avoid parallax.
If you want to avoid parallax problems and move your head around, or if you want to shoot at high magnification and close range, get an AO scope.
|