5D+16-35LII problems

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Thread: 5D+16-35LII problems

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  1. #16
    Users Country Flag
    Join Date: Aug 2008
    Location: Netherlands
    Posts: 1,733

    Ben and John,

    I have added the DxO Corrected set of Ben to my last email.

    Cheers,
    Heinz
  2. #17

    Thanks Heinz. The corrected set of images work well in PTGui, but actually the distortion in this lens is already very low. Optimizing the shift parameters is by far the most important factor, and PTGui again gave a perfect stitch. Autopano Pro does a better stitch with the corrected images, but there were still some minor stitching errors visible in my test.
  3. #18
    Users Country Flag badders's Avatar
    Join Date: Jan 2009
    Location: East Kilbride, Scotland
    Posts: 349

    Hi Ben,

    I've stitched your set of images using AutoPano Giga 2.5.1. Final result here along with a QTVR and the project file. Looking at the images and the result from PTGUI I'm not convinced you've nailed the NPP on the NN5. PTGUI I find is more "forgiving" than APG. Can you take a set of 6 shots around, this time tilting the upper arm DOWN -15 degs? That will let us look at the position of the upper/lower arms.



    Badders
  4. #19

    Quote Originally Posted by badders View Post
    Hi Ben,

    I've stitched your set of images using AutoPano Giga 2.5.1. Final result here along with a QTVR and the project file. Looking at the images and the result from PTGUI I'm not convinced you've nailed the NPP on the NN5. PTGUI I find is more "forgiving" than APG. Can you take a set of 6 shots around, this time tilting the upper arm DOWN -15 degs? That will let us look at the position of the upper/lower arms.
    Hi,

    Here is another pano (raw files) with the lens tilted down 15 degrees (one click down from the upper arm)

    www.studio-beni.net/pano2.zip

    Again please pardon the mess, mid spring cleaning.

    BTW I bought the NN5 from you guys, incredible service, more than happy!
    Last edited by Ben Rubinstein; 04-06-2011 at 03:59 AM.
  5. #20
    Users Country Flag badders's Avatar
    Join Date: Jan 2009
    Location: East Kilbride, Scotland
    Posts: 349

    Ben,

    Sorry my bad - can you shoot @ -30 degs down? -15 degs isn't enough. Also, just upload JPEGS as I'm not needing the RAW images.



    Badders
  6. #21

    I'm going to do some rechecking of the NPP, see if that is what most of the problem is, I'll report back soon...
    Last edited by Ben Rubinstein; 04-06-2011 at 04:55 AM.
  7. #22

    Ben, Your 15 degree down shots stitch flawlessly in PTGui. The optimizer report shows an average control point distance of 0.65 pixels and a maximum of 1.66, which is very good - and this is with a wide vertical spread of points. I can see no evidence of any parallax problems, so your upper rail setting is fine. Taking two shots with the camera pointing vertically down, rotating the head through 180 degrees between the shots is also a good way to check both the lower rail setting and also the rotational position of the camera on its mounting to the upper rail. (You check for parallax movement of the head against the floor in the background).

    John
  8. #23
    Users Country Flag badders's Avatar
    Join Date: Jan 2009
    Location: East Kilbride, Scotland
    Posts: 349

    The -15 degs down also stitched great in APG 2.5.1 with a Global RMS of 2.96



    Badders
  9. #24

    Didn't for me in APP, had significant misalignment, especially in the tiles. However using a custom lens profile easily made, I'm getting 100% perfect stitches every time with PTGui. Seems to be a lens distortions thing....
  10. #25
    Users Country Flag badders's Avatar
    Join Date: Jan 2009
    Location: East Kilbride, Scotland
    Posts: 349

    I'll upload the APG project file for you to look at. If your now getting good results with PTGUI then at least you know the hardware is setup correctly.



    Badders
  11. #26

    I'd appreciate that!

    I'm now running triple layer (full 360X180) pano's using PTGui and this profile with 100% perfect results, ditto HDR pano's. I will of course try it out tomorrow in different locations, outdoors for example, to check that this profile I've been given is not for this location only which would rather defeat the purpose.

    Many thanks again and I'm very glad I bought one of the last NN5's from you, it's much better than I could even have hoped for, I'm glad I chose it over the RRS solution to be honest eventhough I do own the RRS pano elements package. The NN5 seems to have been designed specifically for the working pro in the field who wants the maximum of ease with the least amount of fuss and the ability to concentrate on the job at hand. The little screw in stops for use with a popular lens is just genius, you can be set up in low light without squinting to read figures with a torch or getting a crick in your neck when positioned on the edge of a balcony. Very well thought through and that's even before I start talking about the click stops, the build quality, etc.
  12. #27
    Users Country Flag
    Join Date: Aug 2008
    Location: Netherlands
    Posts: 1,733

    Hi Ben,

    Just like to report that I as well got a good result with AGP 2.5.1 with a Global RMS of 2.75. I have changed my preferences in "Optimize": from "quick" to "Heavy". Advanced preferences: I clicked 1) 2) 3) only CP below RMS 5.0 5).
    You could use 6? When you changed NPP because of pole pano shots Z+N for example.

    I added Cp between shot 3-4 and 4-5. With these changes I could at least get RMS 2.75.

    So when you train a little bit you should get good results with Autopano as well. But still I prefer PTGui: never change a winning team

    Sucess,
    Heinz
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