Kaidan V1.4 User Manual

®
QuickPan
Panoramic Tripod Head
User’s Guide - V1.4 - Feb 2007
QuickPan Panoramic Tripod Head Overview
Thank you for purchasing a Kaidan
This manual is designed to help you
understand how to use your Quick-
Pan to create quality panoramas. This
document will be revised from time
to time and updated versions can be
down load ed from the QuickPan page
on the Kaidan web site.
QuickPan Overview
The QuickPan family is built around a
stur dy and precise Ro ta tor Base with
interchangable in dex ing ClickDiscs.
There are several camera brackets
that slide and lock onto the Rotator
A panoramic tri pod head makes it
that are stitched to form a complete
the cam era so that it ro tates around
the optical center or nodal point of
the lens and provides a repeatable
The QuickPan Family
sire two in de pen dent axes of ad just ment. It can be
with the Compact Camera Bracket. The two axes
than nec es sary. When a cam era equipped with a
the im age. This fea ture makes the Twin-Axis Adapter
VR Cubic pan ora mas. This bracket is ideal for
those soft ware ap pli ca tions that stitch mul ti ple
to sup port most dig i tal and fi lm cam er as in a
pact than previous models and the com pe ti tion.
will also ac cept older Kaidan camera brackets
Rotator Base (QuickPan )
Twin-Axis Adapter
Standard Camera Brack et
Spherical Camera Bracket
QuickPan Rotator Base
the silver thumbscrew on
the side of the black Rotator
to remove the head from the
tripod.
Once the thumbscrew is
the Detent Disc can be
the Rotator Housing.
the re cessed area in the top
to fully engage and collapse
the plunger, then tight en the
thumbscrew.
the plung er so that the metal
that the plunger is not set
Installing Detent Discs
1)
2)
3)
Sil ver Thumbscrew
4)
5)
Adjusting the Force of the Spring Plunger
QuickPan Rotator Base
with a tripod adapter bushing which ac-
tri pod mounts.
grab the lever and turn coun-
terclockwise. The clamp lever is
turned clockwise to tighten and
tioned by pulling outwards against
wise or counterclockwise. Next
throughout this manual showing
the mounting confi gurations of the
1/4 inch Tripod
3/8 inch Tripod
Standard Camera Bracket - Camera Mounting
Mounting your camera on the Stan dard Camera Bracket
the ap pro pri ate slot in the Ver ti cal
that has the thread ed hole. Care-
ful ly un screw the knob out of the
thread ed hole, be ing care ful not to
to wards the rear of the camera.
pro pri ate slot then into the tri pod
tight on the Vertical Brack et. Don’t
wor ry about get ting the cam era
you’ll need to do when you’re
your lens over the pivot point is
to lock the brack et in place. Note:
the lever and turn clockwise to
tighten and counterclockwise to
Mounting your camera on the Spherical Bracket
which is held into po si tion by large
you to po si tion the arm and your
tightening the clamp lever. Note: The
the centerline of your cam era’s lens
with the center of the camera, it may
Spherical Camera Bracket - Camera Mount ing
that are provided for you to help
An optional camera mount is also
this case you would attach the a plate
Adjusting the camera position for the
the swing arm, or sliding the entire
the camera.
grab the lever and turn clockwise
to tighten and counterclockwise to
wise.
Camera Mounting - Standard Camera Bracket
Mounting your camera on the camera brackets
the tri pod mounting thread on your
po si tion the camera knob to another
move the knob sim ply slide the knob
thread ed hole. Care ful ly un screw the
time, as this is a task you’ll need to do
when you’re ready to shoot.
your lens over the pivot point is ac-
com plished by loosening the clamp
tight en the clamp lever to lock the
sem bly along the arm of the Rotator
your cam era on the bracket and to
era when you use it for other tasks.
grab the lever and turn clockwise
to tighten and counterclockwise to
wise.
Nodal Point
This is one of the most frequently asked questions when it comes to stitcher-based panorama creation. Once you understand the basics, you’ll be able to easily locate the nodal point for any camera and lens combination.
Simply put, the nodal point is the point inside your camera where the light rays converge and fl ip over. When shooting a panorama it’s necessary to rotate about this point to eliminate the image mismatch caused by parallax error.
It’s also worth noting that the nodal point is not the same as the fi lm plane, which is often marked on the underneath side of many 35mm cameras. Generally, for most 35mm cameras and lenses, the nodal point is located somewhere towards the center of the lens barrel.
Parallax error can be easily demonstrated by this simple experiment. Close one eye and hold your index fi nger upright
Parallax error can be easily demonstrated. It’s the rel a tive move­ment caused by a shifting point of view. In this ex am ple, you eye is moving with respect to your hand and the back ground.
about six inches away from your open eye. Rock your head from side to side. Notice how your fi nger moves with respect to the background. This relative movement is due to the fact that you’re not rotating your head around your eye’s nodal point, which is somewhere in the center of your eyeball. Instead, you’re rotating about your spine which is several inches to the rear and off to one side. It is this relative side-to-side motion that we will strive to eliminate when setting up
a camera for VR panoramas.
Step 1: The side-to-side adjustment
Once your camera is fastened to your camera bracket, move to the front of the tripod head so you’re looking into the lens. Adjust the camera bracket so that the cen ter of the lens is di rect ly over the pivot axis of the tripod head. Try to be as accurate as possible. You should strive to get this adjust­ment within plus/minus a 1/16th of an inch.
Nodal Point (continued)
Step 2: Fore-Aft Adjustment
This step is most easily accomplished out of doors. Find a vertical edge or line, such as a doorway or edge of a building. Position your camera and tripod about 2-1/2 feet away, or as close as possible with the edge still in focus when you look through the viewfi nder. If you’re using a multirow head such as the QuickPan III Spherical, set the swing arm to a level horizontal position (zero degrees).
Looking through the camera’s viewfi nder, fi nd another vertical edge or line that is far away, such as another building or telephone pole. Align the two objects and rotate the pan head so they are in the left hand side of the viewfi nder.
Rotate the pan head so the two objects move over to the right hand side of the viewfi nder. Unless you’ve managed to unwittingly locate the right position, you should notice the two objects will
Looking through the viewfi nder align a close object (brick wall) with a faraway ob ject (tele phone pole). As you ro tate the camera from side-to-side there should be no relative move ment be tween the two objects as shown to the right.
If, as shown above, the two objects move with re spect to one and another in the viewinder, slide the camera fore or aft in order to elim i nate this move ment. Here, the tele phone pole has moved be hind the brick wall.
move with respect to each other as you rotate the pan from left to right. Slide the camera to the front or rear as required to eliminate
this relative movement.
Step 3: Record Your Results
After you’ve discovered the two location dimensions, be sure to record the settings. The QuickPan III has convenient indicator scales for this purpose. These numbers represent the nodal point for this given camera and lens combination. If you change cameras or lenses, this procedure may have to be repeated
Step 5: How About Rangefi nder Cameras?
A rangefi nder camera is a camera where you look through a separate viewfi nder and not through the actual lens. The process is basically the same. Locate the Side-to-Side adjustment as discussed in Step 1. When it
Nodal Point (continued)
comes to the Fore-Aft adjustment, you won’t be able to look through the viewfi nder to determine the proper setting since the viewfi nder is a separate optical path that doesn’t really “see” the same image as the fi lm.
Instead, you’ll have to start with the bracket all the way to the front and take pairs of test shots. Each pair will have the vertically aligned objects in the left and then the right side of the viewfi nder. After each pair of photos, slide the bracket rearward and repeat the process. Slide the bracket the same increment each time (i.e. 10mm). Be sure to record the scale setting for each pair of images. Process the fi lm, or in the case of digital cameras, download the images to your computer.
At the end of this process you will be able locate the pair of images with the least relative movement. If no single image is optimum, you may need to interpolate between two images to fi nd the closest value.
Shooting Panoramas
Apple recommended that the images
to one-half. That’s a good rule of thumb
How much Overlap?
How many Shots?
Once you’ve determined the overlap, you’ll be able to fi gure out how many shots. The easiest way to do this is to simply look through the viewfi nder and turn the camera to achieve the desired amount of overlap. You then check the angle readout to see how far you turned the camera. Round the angular value to the nearest convenient value. For most stitching programs, it is generally not that important to use a precise overlap value. However, it should be noted that some programs are more sensitive to an overlap value that
constantly repeats from shot to shot. You may need to experiment somewhat to obtain the best results.
Taking the Photos
When you’re ready to shoot, make sure that the camera is securely attached to the QuickPan III. You should use a tripod that is sturdy, ideally one that has a center support system of braces to help keep the camera from fl exing.
Proper leveling is important and often misunderstood. When it comes to leveling there are two things that are fairly important. With multirow panoramas (i.e. Stitcher) the issue of leveling is less crucial and primarily involves aestethics and placement of the horizon. We’ll concentrate primarily on cylindrical or single-row panoramas.
First, the camera's optical axis should be parallel with the rotation plane of the tripod head. In other words the camera should not be pointed up or down with respect to the plane of rotation.
Secondly, it's also somewhat important for the camera and fi lm/CCD to be properly
aligned with respect to rotation when viewed from the front (looking into the lens).
This can happen because the camera is not seated fl ush against the upright bracket. This is pretty common since many cameras have mounting screws that are not in the center of the base. Many cameras have screws off to one end of the camera or at the edge of the camera and this can cause the camera to not be pulled down evenly onto the tripod head mounting plate.
Another problem is that CCDs may not be accurately positioned within the camera body and respect to the mounting surface. It only takes a fraction of degree and with other manufacturing tolerances this can add up to be noticeable.
This misalignment can also happen if the upright bracket is bent or is not exactly perpendicular to the rotation plane of the head. At Kaidan we check this dimension very closely to ensure it's as close to 90° as reasonbly possible.
The effect of a rotated camera (when viewed looking into the lens) is a
Shooting Panoramas (continued)
stairstepping of images as you progress around the panorama. Stairstepping has nothing to do with the state of the entire head being level with respect to the horizon. This can be corrected by rotating all the images a slight amount in your authoring program.
You can also shim the camera/head to compensate for such misalignment errors as well. A few layers of tape is usually all that it takes. Let me also reiterate what's not as important as some people think.
The overall level of the head/camera is not as critical in order to produce good stitched results. As long as the camera is not tilted or rotated and as long as the camera is positioned so that the optical axis is parallel to the rotation plane, you can tilt or position the entire head so that it's not level to the horizon and it won't affect the image.
Now, it might produce a panorama that is tilted with respect to the horizon but that might be an artistic choice or something you want to do on purpose.
rotation plane and the camera/CCD is not rotated, slight variations in level as the head rotates is generally not a problem.
As you shoot around the circle, try to avoid capturing any moving objects that might come into your fi eld of view. There is no harm in waiting, for example, while a person walks past before shooting the photo.
You may also want to check with the software developer of the stitching software that you’re using to get their recommendations for exposure settings and other camera settings. We hope you enjoy shooting your panoramas and if you have any questions or problems using our equipment, please let
us know.
As long as the optical axis is parallel to the
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A • Limited Warranty
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