How many photos for a full spherical pano (10mm on a DX D90)?
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  1. How many photos for a full spherical pano (10mm on a DX D90)?

    #1

    Hi, just got a Sigma 10-20mm f3.5 and I'm doing calibration for my Nikon D90 + NN5 + RD8.

    What I can't figure out is how may rows to shoot.
    There are no full spherical pano calculators out there

    I'll try a 2 row + nadir + zenith, see how it goes.
    Upper row: +30 pitch 5 steps (72 deg)
    Lower row: -15 pitch 5 steps (72 deg)

    It should get me covered but there could be a better arrangement.
    Any suggestions?
  2. Re: How many photos for a full spherical pano (10mm on a DX D90)?

    #2
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    CHECK OUT VRWAVE.COM

    NICK



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  3. Re: How many photos for a full spherical pano (10mm on a DX D90)?

    #3
    Users Country Flag badders's Avatar
    Join Date: Jan 2009
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    8 around at 0 degs
    4 at -45 degs
    4 at +45 degs
    1 x zenith
    1 x nadir

    http://www.panoguide.com/forums/qna/4958/



    Badders
  4. Re: How many photos for a full spherical pano (10mm on a DX D90)?

    #4

    Quote Originally Posted by badders View Post
    8 around at 0 degs
    4 at -45 degs
    4 at +45 degs
    1 x zenith
    1 x nadir

    http://www.panoguide.com/forums/qna/4958/
    Whooa, that's way to many photos. The overlap is huge, might as well use the 18mm lens and get a better resolution pano.

    I found Hugin's preview useful for visualizing the overlap. I just position the photos manually and check the overlap in the preview.


  5. Re: How many photos for a full spherical pano (10mm on a DX D90)?

    #5

    Quote Originally Posted by kosmarnik View Post
    Whooa, that's way to many photos. The overlap is huge, might as well use the 18mm lens and get a better resolution pano.

    I found Hugin's preview useful for visualizing the overlap. I just position the photos manually and check the overlap in the preview.
    All you really need to do is look at the LCD while rotating the camera and judge how much overlap you are getting at various degrees of rotation. You don't have to be exact.

    Do the same thing for the tilt.

    I can shoot 6+6+6 with about a 17-18mm on my compact so you should be able to shoot 4+Z+N and get enough overlap to stitch with a 10mm. It might be tight but I've found that the less overlap the better because the control points are close to the seam.
  6. Re: How many photos for a full spherical pano (10mm on a DX D90)?

    #6
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    Hi,

    try this on your own, check as Nick told you Vrwave as well.




    Sigma 10-20mm/f4-5.6 Ex DC D90 Spherical Panorama


    Horizontal Parameters Vertical Parameters

    Zoom Rows Degree Stops Pitch Zenith Nadir

    10 2 60¬? 6 30¬? 90¬? -90¬?
    60¬? 6 -30¬?

    12 2 45¬? 8 30¬? 90¬? -90¬?
    45¬? 8 -30¬?

    45¬? 8 45¬?
    14 3 36¬? 10 0¬? 90¬? -90¬?
    45¬? 8 -45¬?

    45¬? 8 45¬?
    17 3 30¬? 12 0¬? 90¬? -90¬?
    45¬? 8 -45¬?

    45¬? 8 54¬?
    20 4 30¬? 12 18¬? 90¬? -90¬?
    30¬? 12 -18¬?
    45¬? 8 -54¬?




    For security reasons Overlap is calculated around 30%.

    http://vrwave.com/

    Heinz ©hindenhaag
  7. Re: How many photos for a full spherical pano (10mm on a DX D90)?

    #7

    Quote Originally Posted by hindenhaag View Post
    Hi,

    try this on your own, check as Nick told you Vrwave as well.
    [stuff deleted]
    For security reasons Overlap is calculated around 30%.

    http://vrwave.com/

    Heinz ©hindenhaag
    That really seems like an excessive amount of pictures. Like I said, I can shoot 6+6+6 plus the tripod patch with a 17-18mm lens on my compact.

    8+12+8+Z+N is way more trouble than it's worth. I suspect the other patterns are similarly excessive.
  8. Re: How many photos for a full spherical pano (10mm on a DX D90)?

    #8

    Quote Originally Posted by DemonDuck View Post
    I can shoot 6+6+6 with about a 17-18mm on my compact so you should be able to shoot 4+Z+N and get enough overlap to stitch with a 10mm. It might be tight but I've found that the less overlap the better because the control points are close to the seam.
    Tight? The hfov (portrait) of the 10mm on the D90 is 77 degrees. They will not overlap at all at 4 shots around.

    John
  9. Re: How many photos for a full spherical pano (10mm on a DX D90)?

    #9

    Using my Panorama calculator (you can download it on my blog welcome page), I found :

    For a D90 (15.8 x 23.6 mm), with 25% overlap
    - 8 pictures at 0¬?,
    - 4 pictures at 60¬?,
    - 4 pictures at -60¬?,
    - 1 picture for nadir.

    If you go down to 20% overlap, I find
    - 6 pictures at 0¬?,
    - 2 pictures at 75¬?,
    - 2 pictures at -75¬?,
    - 1 picture for nadir.



    My blog : Aslan Resimler
  10. Re: How many photos for a full spherical pano (10mm on a DX D90)?

    #10

    Quote Originally Posted by YvesG View Post
    Using my Panorama calculator (you can download it on my blog welcome page), I found :

    If you go down to 20% overlap, I find
    - 6 pictures at 0¬?,
    - 2 pictures at 75¬?,
    - 2 pictures at -75¬?,
    - 1 picture for nadir.
    Thanks! Seems reasonable, but still takes 3 rows + N.
    I've successfully been using a similar arangement:

    • 6 at +15¬?
    • 4 at -30¬?
    • 1 zenith
    • 1 nadir


    With a proper calibrated NN5 it stitches perfectly.
    The only problem I have is with my lens.
    My copy of Sigma 10-20mm f3.5 has a some bad blurring, when wide open (f3.5), in one extreme edge.
    When using tight settings as I've been it's a problem.

    Though it's almost a non-issue at f8.

    With a better copy (or a different bad edge ;P) there would be no such problems.

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