Test Pano using Sigma 10mm Fisheye
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Shaved 10mm Sigma Fisheye with Nikon D3
Have a look to the 3-shot Panorama - again "pure", without any kind of correction in order to allow a fair assessment.
| Subjcet |
City Hall, Munich This tiled floor debunks every stitching error.
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| Exposures |
Nikon D3 with shaved Sigma 10mm F2.8 EX DC Fisheye
The 3 images were filed in RAW/NEF format and directly imported into PTGUI - without any preprocessing |
Exposure 1 (2 MB) Exposure 2 (2 MB) Exposure 3 (2 MB) |
| Panorama |
generated using PTGUI Pro |
2kx1k JPG PTGUI |
| Corrections |
none |
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| Pano2VR |
Some transformations generated using Pano2VR - just for reference Again no kind of post-processing or sharpening |
cube face 0 |
The Sigma 10mm Fish is designed for use on DX-/APS-C - cameras.
The FOV after shaving the lens hood is 188 degrees at a image circle diameter of 29.4mm, means 3500 pixel on the FX-sensor of the Nikon D3.
Those data are almost identical with those of the shaved DX Nikkor 10.5mm Fisheye on the D3 body. This apparent inconsistency - according to the lens formula, both lenses should have different FOVs values - is due to the circumstance, that the Sigma lens cannot be totally shaped. The FOV is still limited by the lens barrel.
Since we posted the Blog "Fisheyes must be shaved", we got several enquiries from some people, we irritated with the posting. "Using a DX lens on a FX body, that will never work, isn't it."
Please find attached the panorama and the original exposures. We only converted the NEF/RAW-files into JPEG to improve the download speed. Take a look to the PTGUI screenshot, too. These are the real data for that pano. No single control point was deleted.
Please take your own conclusions.
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