Portrait verus Landscape The Gloves Are Off

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  1. Portrait verus Landscape The Gloves Are Off

    #1

    I can understand why, if shooting a one row panoramic photograph, the portrait position is preferable; the end result photograph is deeper and, because more shots are needed to cover the required view, the quality is better.

    What a cannot understand is why the portrait position is preferred when shooting a multi-row panoramic. It is a case of either an extra row or an extra column but, at the end of the day, the number of shots required to cover the view is the same. The advantage I can see, from having the camera in the landscape mode, is a much sturdier and steadier setup. After all, we all know you only raise the centre column of a tripod as a last resort, so why stick a camera on the end of one arm, one joint and a lever?

    Comments, views and education welcomed....


  2. Re: Portrait verus Landscape The Gloves Are Off

    #2
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    I would suggest it is far easier to find linking control points especially if much sky is included.
  3. Re: Portrait verus Landscape The Gloves Are Off

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    Quote Originally Posted by newboy View Post
    I can understand why, if shooting a one row panoramic photograph, the portrait position is preferable; the end result photograph is deeper and, because more shots are needed to cover the required view, the quality is better.

    What a cannot understand is why the portrait position is preferred when shooting a multi-row panoramic. It is a case of either an extra row or an extra column but, at the end of the day, the number of shots required to cover the view is the same. The advantage I can see, from having the camera in the landscape mode, is a much sturdier and steadier setup. After all, we all know you only raise the centre column of a tripod as a last resort, so why stick a camera on the end of one arm, one joint and a lever?

    Comments, views and education welcomed....


    first, it is easier to rotate the pano head horizontally than vertically. So portrait position is advantageous for multi-row as you reduce the number of rows. For fisheye lens, you only need a single row, plus zenith and nadir shot depending on focal length of the lens. When mounted in landscape mode, you may need 2 row plus zenith and nadir.
    second, it is easier to design a pano head for mounting in portrait mode. It is more compact and require fewer parts.


    nick



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  4. Re: Portrait verus Landscape The Gloves Are Off

    #4


    "it is easier to design a pano head for mounting in portrait mode. It is more compact and require fewer parts."


    nick
    [/quote]

    I have your N180 which must be the most simple of designs and construction (and I don't mean that in a negative way) surely it would be an easy task to produce a head to fit between the N180 and the tripod which comprised of two meshed gears and, as the top one ( the rotator side) moved against the tripod side one, the nodal (entrance pupil) position was maintained.
  5. Re: Portrait verus Landscape The Gloves Are Off

    #5
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    Quote Originally Posted by newboy View Post
    I have your N180 which must be the most simple of designs and construction (and I don't mean that in a negative way) surely it would be an easy task to produce a head to fit between the N180 and the tripod which comprised of two meshed gears and, as the top one ( the rotator side) moved against the tripod side one, the nodal (entrance pupil) position was maintained.
    Hmm, can you post drawing of your design?



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  6. Re: Portrait verus Landscape The Gloves Are Off

    #6

    I was originally thinking of two elliptical gears and as the bottom one was turned it would cant the arm over and either pull it back or move it forward, depending on whether the camera was being made to point up or down, to maintain the position of the rotation point to the tripod. Thinking about it, I thought it a bit over engineered and Victorian. All that is needed is a quadrant with two parallel slots .The shorter one at the top moves the rotator backwards or forwards to maintain it's position relative to the tripod and the lower groove rotates the whole assembly through he required number of degrees.
  7. Re: Portrait verus Landscape The Gloves Are Off

    #7
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    Quote Originally Posted by newboy View Post
    I was originally thinking of two elliptical gears and as the bottom one was turned it would cant the arm over and either pull it back or move it forward, depending on whether the camera was being made to point up or down, to maintain the position of the rotation point to the tripod. Thinking about it, I thought it a bit over engineered and Victorian. All that is needed is a quadrant with two parallel slots .The shorter one at the top moves the rotator backwards or forwards to maintain it's position relative to the tripod and the lower groove rotates the whole assembly through he required number of degrees.
    If you can make a simple drawing, it will help me understand better. A picture is worth a thousand words when it comes to designing. :-)
    Without digging into details of actual design, I can imagine it is more complicated than NN3/5.


    Nick



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  8. Re: Portrait verus Landscape The Gloves Are Off

    #8

    Quote Originally Posted by nick fan View Post
    If you can make a simple drawing, it will help me understand better. A picture is worth a thousand words when it comes to designing. :-)
    Without digging into details of actual design, I can imagine it is more complicated than NN3/5.


    Nick

    Here is a quick one.

  9. Re: Portrait verus Landscape The Gloves Are Off

    #9

    The centre point, to decide on the relative lengths of the slots, should be, of course, where the axis of the camera lens intersects the entrance pupil point.. Entrance Point Ninja doesn't sound so catchy, does it....
  10. Re: Portrait verus Landscape The Gloves Are Off

    #10

    This might give a better idea of just what I am on about.
  11. Re: Portrait verus Landscape The Gloves Are Off

    #11
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    Quote Originally Posted by newboy View Post
    This might give a better idea of just what I am on about.
    From your picture, the rotation is not around the NPP. This will cause parallax.
    Am I missing something? I can quite understand the first drawing.

    Nick



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  12. Re: Portrait verus Landscape The Gloves Are Off

    #12
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    Quote Originally Posted by newboy View Post
    This might give a better idea of just what I am on about.
    Maybe this is what you are looking for?
    In the old days I've worked with Sinar
    To get the idea go to:

    http://www.sinarcameras.com/site/ind...-rand-843.html

    Go to "kameras" and click at p2
    Under "Wie funktioniert es" is a small animation.
    The middle of the vertical panel is always centered, so at NP (no rail
    adjustments needed !)
    The cogwheel system is a kind of nylon and very precise.
    I have worked 20 Y with these camera's
    Have Fun !
  13. Re: Portrait verus Landscape The Gloves Are Off

    #13

    Quote Originally Posted by nick fan View Post
    From your picture, the rotation is not around the NPP. This will cause parallax.
    Am I missing something? I can quite understand the first drawing.

    Nick
    Suppose the pivot is rep[ositioned so that it is between the rotator and the camera bracket. This should provide enough up and down movement whilst still maintaining a level horizon and a NP over the centre of the rotator. If you would like to knock off a quick prototype, I would be more than happy to road test it....
  14. Re: Portrait verus Landscape The Gloves Are Off

    #14
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    Quote Originally Posted by newboy View Post
    Suppose the pivot is rep[ositioned so that it is between the rotator and the camera bracket. This should provide enough up and down movement whilst still maintaining a level horizon and a NP over the centre of the rotator. If you would like to knock off a quick prototype, I would be more than happy to road test it....
    what you suggested is similar to Nodal Ninja Ultimate R1.
    http://nodalninja.com/forum/index.php?topic=655.0
    it won't rotate around NPP in vertical rotation. You need to compensate the NPP offset. This won't be an easy task.


    Nick



    Fanotec
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  15. Re: Portrait verus Landscape The Gloves Are Off

    #15

    Quote Originally Posted by nick fan View Post
    what you suggested is similar to Nodal Ninja Ultimate R1.
    http://nodalninja.com/forum/index.php?topic=655.0
    it won't rotate around NPP in vertical rotation. You need to compensate the NPP offset. This won't be an easy task.


    Nick
    I'll just get a bracket and haul my camera into upright mode. Are there any forthcoming?
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