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  1. #1
    nathanbarlow's Avatar
    nathanbarlow is offline dPS Forum Member
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    Default my panoramics stitch wonky?!

    hi all,

    I recently went out to Lake Karapiro (a long thin New Zealand lake that is used for rowing - in fact the recent World Champs was held there) to get some panoramic shots.

    I used a tripod, locked down on all axis except the horizontal for panning. Overlap by 20-30% as standaard. However, when I got home and stitched it, all the images are out of alignment. Tried Hugin as well, same thing. Setting are on Rectilinear and the images stagger regularly upwards or downwards. I cant seem to work out the problme, as I levelled the tripod, locked it down securely, had mirror lockup and timer (to eliminate/decrease camera shake), yet the image stitch together in a wonky shape. Was using a 50mm 1.8 so its not the perspective distortion being corrected.

    Any help much appreicitaed

    Nathan
    Bodies: Canon 30D, Canon D60
    auto lenses: 50mm f/1.8, 28-80mm f/4.5-5.6, 24-85mm f/3.5-4.5
    manual lenses: 18-28mm f/4, 135mm f/2.8

    This work by Nathan Barlow is licensed under a Creative Commons Attribution-Non-Commercial-No-Derivative Works 3.0 New Zealand License. Please ask before posting modified images, unless otherwise stated.

  2. #2
    BPhil8835's Avatar
    BPhil8835 is online now Finding beautiful places
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    Default

    For better results, you might consider posting this on the Digital Photography Techniques Forum. Sorry I can't help you.
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  3. #3
    Nicole's Avatar
    Nicole is offline Dr. Super Moderator
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    Default

    Could you maybe provide an example, just to make it clearer what you're meaning?

    Also I've moved this over to the technique area.
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  4. #4
    inkista's Avatar
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    How did you level the camera? Remember, there are three axes of possible movement: yaw, pitch, and roll. You need to level for both pitch and roll before you rotate in yaw. Most folks get the roll (left-to-right) leveled, but screw up with the pitch (front-to-back).

    Also, are you having problems with alignment on nearby objects? If so, the issue may be parallax error. You have to find the NPP (no parallax point) for your camera/lens/focal length combination, and the rotate around that, not so much the tripod hole. It's why pano rails and pano heads exist.
    I shoot with a Canon 5DmkII, 50D, and S90, and Pansonic GX-7. flickr stream and equipment list

  5. #5
    nathanbarlow's Avatar
    nathanbarlow is offline dPS Forum Member
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    Default

    hi all,

    thanks for the replies, and sorry for placing my thread in the wrong place

    http://s8.postimage.org/als572wv9/example_pano.png


    I mean that the images seem to stagger, meaning I would have to crop along those white lines, losing the tip of the hill.
    Bodies: Canon 30D, Canon D60
    auto lenses: 50mm f/1.8, 28-80mm f/4.5-5.6, 24-85mm f/3.5-4.5
    manual lenses: 18-28mm f/4, 135mm f/2.8

    This work by Nathan Barlow is licensed under a Creative Commons Attribution-Non-Commercial-No-Derivative Works 3.0 New Zealand License. Please ask before posting modified images, unless otherwise stated.

  6. #6
    OsmosisStudios's Avatar
    OsmosisStudios is offline Don't Panic
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    Looks like you werent actually level in the ROLL direction.
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  7. #7
    inkista's Avatar
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    Default

    Yeah, roll most likely. Could be pitch, too, though.

    Here's what you do. Click on the Move/Drag tab.

    To correct for pitch, drag up and down (straighten the horizon).

    To correct for roll, right-drag (rotate the horizon).

    {correcting for yaw is dragging left/right, but that really only works with 360-degree panos}.

    You might also want to play with a few of the other projections.

    And this is why one of my pieces of advice when shooting panos is: shoot more vertical coverage than you think you need. You're going to end up cropping and doing horizon correction. Shoot multiple rows if you have to. If you can't do that, shoot with the camera in portrait orientation.

    Oh, and I recommend one of these:



    There are 3-axis ones, too, but those are really only useful if you shoot sphericals like me.
    Last edited by inkista; 11-27-2012 at 12:41 AM.
    I shoot with a Canon 5DmkII, 50D, and S90, and Pansonic GX-7. flickr stream and equipment list

  8. #8
    nathanbarlow's Avatar
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    Default

    I have a bubble level on the tripod, AFAIK its two levels - its a circular one with "get the bubble under the dot inside the circle" deal. Thats whay i was so confused that it came out so unlevel?

    I was shooting portrait orientation too

    thought i had done everything right, and clearly missed something
    Bodies: Canon 30D, Canon D60
    auto lenses: 50mm f/1.8, 28-80mm f/4.5-5.6, 24-85mm f/3.5-4.5
    manual lenses: 18-28mm f/4, 135mm f/2.8

    This work by Nathan Barlow is licensed under a Creative Commons Attribution-Non-Commercial-No-Derivative Works 3.0 New Zealand License. Please ask before posting modified images, unless otherwise stated.

  9. #9
    IABoomer's Avatar
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    Could it be that when you turned the mount on your tripod 90 degrees to put the camera in portrait orientation, it wasn't quite 90 degrees? Yes, you might have had the mount flat, but once you tilted it up, if the camera wasn't square, then the edges would slope down as you stitched the edges together.
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  10. #10
    uavmx is offline dPS Forum Member
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    What head are you using on your tripod?
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