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I have a Pentax K5 with its default lens, and a ball-mount tripod that can hold 17 lbs max. I need to take two shots in two different locations, and have the camera in the same spatial orientation (angles, rotation, height, distance, etc...) relative to a flat vertical surface in each location. Are there any best practices for measuring the camera orientation?

  • I think I found a method: First, I take a circular sticker and cut a quarter out of it and place it on a corner in the ball socket. Second, I put that corner as a marker on the panning rotary joint. I similarly mark the tripod legs. I use a flat-ended t-square, a laser, and a compass to measure the angle and distance of two of the tripod legs from the flat vertical surface. It's not quite as accurate as I'd like, but it kind of works. It also can't be expressed in numbers, and the joints can't be moved for other projects in between. – AaronF Apr 30 '15 at 13:51
  • Also, no matter how precisely I measure the ball-joint's position, there's a lot of measurement leverage between that and the surface who knows how many feet away. There's got to be a better way... – AaronF Apr 30 '15 at 13:56
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    I don't understand the question. Just tighten the head, take one shot, move, take the other shot? – null Apr 30 '15 at 15:09
  • How about one of those little hotshoe-mounted spirit levels? Something like this: amazon.co.uk/Camera-Hotshoe-Olympus-Panasonic-Cameras-green/dp/… but make sure it's compatible with your camera model – laurencemadill Apr 30 '15 at 16:27
  • null - I need to take several shots in each location, separated by driving distance. I need the camera to be in precisely the same relative position and orientation relative to a point on a wall in each location. – AaronF Apr 30 '15 at 16:39
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From the comments, a spirit level is a good idea. Even better is a laser level, which can more accurately help you level the tripod. Once the tripod is level, you can move the head to the prescribed angle to recreate your shot. For something like this a ball head is going to make the process more difficult; a 3-way head, such as Elenesski suggests, would be a much better choice because you can better control each direction of movement.

Even better than a 3-way head would be the Arca-Swiss Cube, which is specifically designed for this kind of problem where you need to accurately recreate position.

enter image description here

I will leave it as an exercise for the reader to discover the price of the Cube because they should be prepared to faint before looking.

  • Oh that's cool, never seen that design before, although you are limited to +/- 30degrees, where the Manfrotto design can go up to +/- 90 degrees. Manfrotto is much heavier as a result. – Elenesski Nov 20 '15 at 21:23
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Have you considered renting/using a surveyor's transit level? The tripod has a 5/8 inch scree and, if this is critical, you could jury rig something so that the postion of the transit and camera stay in the same relative position on the tripod.

e.g. a flat metal bar with a hole for the top of the tripod screw to protrude and be locked on and holes at either end, one with short 5/8 bolt for the transit and the other with 1/4 20 bolt for the camera.
Once the transit and camera are fixed on the bar, they stay that way, while the tripod is moved and repositioned.

transit

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If you have the level of accuracy you are describing in your question's comments, I'd imply you have the budget to replace the ball-mount tripod with a tripod and angled head. After you set the tripod level you can precisely set the orientation of the camera.

http://accurateshooter.net/Blog/manfrotto2x350.jpg

How you set the horizontal control (with the compass) will be a personal choice.

With this tripod head, there is a plate that clicks into the head at the top. I keep that plate on both of my cameras so that I can easily click the camera onto the head. Further I have a long lens with a tripod mount on the lens itself, so I have another plate on that lens. And two spares (!)

The only issue I've ever had with this head, is that dials tend to get stiff over time.

I used to own a ball head, but found that no matter how tight I made it, the angle always drifted. I needed a solution where I could set the angle without drift to do long exposures.

  • I do have the budget. What brands would you recommend in this category? – AaronF Nov 19 '15 at 23:41
  • I use Manfrotto and Gitzo tripods, but Manfrotto is the one that I own that has the strength to handle the weight of a lot of gear. I personally have never heard anybody say anything negative about them. My Manfrotto tripod also has a level on it. You can see that the head has a level on it, to the left of where it says "Tilt Control". – Elenesski Nov 20 '15 at 7:46
  • Note: The Gitzo is for backcountry hiking; it uses carbon fibre making it really light weight, but it's not ideal for heavy gear. – Elenesski Nov 20 '15 at 10:58

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