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My bad, I could have sworn they were there ... but I just checked.I think Marc mentioned in another thread that the nodal point (=entrance pupil) is marked somewhere on the S2 lenses. I can't find it. I only know that the manual mentions the entrance pupil is mentioned in the manual.
Georg
What a relief! I thought I was too stupid to find them :bugeyes:My bad, I could have sworn they were there ... but I just checked.
In fact I don't have a clue where I got that from ...
-Marc
Marc, I seem to remember something similar. I will check tonight.Honestly, it must have been the drugs I've been taking for a herniated disk, and I dreamed it in my stupor. My wife has taken to calling me "Stupor Man"
BUT, I swear I have some lens somewhere that has the nodal point marked on the lens barrel with a circle and line through it ... or the drugs are more powerful than I think they are ... LOL!
-Marc
The lines are the first and second principle planes, H and H', which run through the nodal points, perpendicular to the lens axis.For each lens, you can see the elements and two short lines running in right angle to the lens axis.
In each lens scheme, the lines are shown in a different place.
The positions of the nodal points do not change with focus (for prime lenses). They're fixed by the lens design.It is my understanding that you need to hit the nodal point accurately if you shoot panoramas that include objects located at closer distances.