Whooo whooo, that I can do. (grin)
Question: Before I run to home depot, what are those round circular
metal item you screw into the the tripod hole called?
Also, did you actually get the 34-35mm nodal point in front of the
tripod mount?
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The round circular items that attach everything together are from an old light umbrella – but you can use any 1/4 x 20 bolt, as long as it's not too long! (Use washers if you can't find or cut the bolts short enough).
You should get a bit of felt to go between the L bracket and the camera base. That protects the camera against scratches. Same kind of felt that is used to protect furniture from heavy objects. I know, costs are starting to rise!!
Use the level to make the tripod head level first. Then use it as per my set up to fine tune the camera so that it is horizontal. Rotate the camera and watch the bubble to see how close you are to horizontal -- you don't have to be perfect.
To find the nodal point–you can guess its location based on the photo of my setup, or use a simple technique that takes only a few minutes and only needs to be done once.
When I first build my pano-gizmo I pointed the camera towards two sticks in the ground. One about 3 feet in front of the camera, the other about 15 feet away.
The sticks were all aligned so that when the closest stick was centered in the camera frame it would block out the view of the furthest stick.
I then pointed the camera so that the sticks were at the far left of frame and then pointed the camera so that the sticks were at the far right of frame.
If the lens is at the nodal point then the farthest stick will always be blocked by the closer one. (If you're not at the nodal point then parallax will make the far stick visible).
Once I adjusted to find that point I then marked my pano-gizmo brackets so that I could always get it set up correctly when I'm in the field.
I always use the widest angle to do panoramas – as I believe most people do since you can zoom into the finished pano if you want – so there is no need to worry about the nodal point changing position.
best, gordon pritchard