Poor alignment - wobbly head

[Rick Drew]

I created a pano head extension so I could shoot some panos of the back of a 75 meter ski jump tower, that sits atop a 200’ hill.  I used those square steel tubes that can be telescoped. Anyway, I had no idea how much they could wobble. I extended the telescope thingy and shot the images. However, I noticed that the inside tube moved quite a bit. So for the shots pointing east and west, the head shifted/rotated up or down several degrees.  Shot several sets, but was stuck. Could not exactly jam anything in the gaps to stop the wobble – did not want to round-trip that climb again!

 

Any suggestions for fixing this? The pano stitches clean, horizon is wavy, but the base is straight. I’ve changed image rotation manually, added control points, etc. The horizon levels out, but then there are bad stitching errors.

 

Thanks

[Erik Krause]

Am 20.08.2012 19:44, schrieb Rick Drew:
> I noticed that the inside tube moved quite a bit. So for the shots
> pointing east and west, the head shifted/rotated up or down several
> degrees. Shot several sets, but was stuck. Could not exactly jam

> anything in the gaps to stop the wobble � did not want to round-trip

> that climb again!
>
> Any suggestions for fixing this?

Not without the images and the project file. There is always a way to
fix a panorama if there are enough sharp images without gaps...

In general: Use the Detail Viewer to look at the seams, determine where
you have parallax errors, try to set control points only at same
distance objects in this regions etc...

--
Erik Krause
http://www.erik-krause.de

[John Houghton]

Rick, Might it be possible to merge two stitches in Photoshop,
selecting the horizon and distant parts from one and the base from the
other?

John

On Aug 20, 6:44 pm, "Rick Drew" <r...@sinanju.com> wrote:
> I created a pano head extension so I could shoot some panos of the back of a
> 75 meter ski jump tower, that sits atop a 200' hill.  I used those square
> steel tubes that can be telescoped. Anyway, I had no idea how much they
> could wobble. I extended the telescope thingy and shot the images. However,
> I noticed that the inside tube moved quite a bit. So for the shots pointing
> east and west, the head shifted/rotated up or down several degrees.  Shot
> several sets, but was stuck. Could not exactly jam anything in the gaps to

> stop the wobble - did not want to round-trip that climb again!

[gravityimage]

Hi Rick, is that the ski jump in Fox River Grove? I wanted to shoot from there too, but when I got a good look at the hill I changed my mind. I live only a mile from there. You have to be in pretty good shape to drag a pole and pano setup to the top of that. I would try manually adding all the control points and see what you get. I use a 12 foot fiberglass painters extension pole that is lighter than steel tubing and easy to carry.

Bill Mumford

[Rick Drew]

Yes, it’s at Norge. I’ve climbed the tower a few times.  I was looking at the fiberglass pole (I use one as well) – but when extended straight out (not up) the connections did not exactly make me feel safe.  I could see the pano rig and camera toppling off the end, and down about 300 feet to the valley below!  So I made a steel one. I’m looking for other materials as well.

 

Rick

[ROBERT HANSEN]

Take a look at Nodal Ninja’s pano poles -

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