No 32 Mk 3 scope - parallax?

[RobD]

Here's one for Capt Laidler.
I was shooting my L42A1 at Bisley yesterday in a gale @300 yds, doing OK, but I noticed that if I move my eye off centre, then the post moves off the target. As I understand it, this indicates the target and the post are not in exactly the same focal plane, and I am getting a parallax error. Yet the post and the target seem (more or less) to both be in sharp focus.
I am sure you have written instructions on this; can you direct me to them?
Rob

Information

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[Peter Laidler]

It all depends upon HOW far you move your eye off centre. When you move off centre a thing called optical aberration becomes apparent. The telescope is correctly focussed to YOU if the grat and image (don't forget that you only see an image through a telescope.....) are sharply focussed and clear. It might not be OPTICALLY focussed but that's another matter

[RobD]

Ah. So the drifting of the post off the target will happen in all No 32 scopes if the shooter moves their eye to the side of the scope and peers in obliquely? If that's so, then I will just have to get in the habit of keeping my eye in the same place every time. Not as easy as I thought.

[Peter Laidler]

Difficult to understand without actully seeing it...... and the less No32's I see, the better!