Panorama Help

[ann]

this is why the phase nodal point has dropped out of favor

 

[Ron Evers]

You see why I said have the lens over the point of rotation?

 

[tirediron]

Another way of looking at it.

Imagine what happens when the iris is stopped down to a pinhole. Which rays define the location of the (undiffracted) image - the tiny bundle passing through the pinhole, or rays that head towards the front nodal point but then hit the almost-closed iris blades?

Okay... between this and some additional research, I understand (in general terms) what's going on. I think for practical purposes, we can say that a point about half-way down the lens barrel will suffice for most panoramic work.

Thanks Helen; it's a good day when you learn something! :thumbup:

 

[LiveStrong2009]

WOW!!! Thanks for all of the responses. That is some heavy duty tripod equip you have there Ron. All of the ideas you mentioned make sense, I am about to stitch my pics from today. Tomorrow I will definitely focus more on following your directions.

 

[Ron Evers]

That is some heavy duty tripod equip you have there Ron.

I am utilizing my macro focusing rails to easily adjust the lens over the rotation point.