03-09-2015 09:44 AM - edited 03-09-2015 09:46 AM
I use a Canon 6D with a EF 8-15mm f/4l 2 USM fisheye isn't registering in Digital Photo Professional 4.1.50. This lens profile isn't listed on the lens database either. The software control panel states Lens Data:Not available but the RAW CR2 file clearly shows the Canon lens used in the EXIF data. The lans isn't listed in the add/remove diolog either. Has anyone had this problem.
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03-09-2015 11:48 AM
I am not a DPP fan and I don't know why Canon has most of its lenses listed and a few not. But the 8-15mm is designed to introduce distortion and maybe they guess folks don't want to correct it. The mere fact it can reproduce more than the eye can see may be the reason. And how do you correct a fisheye?
03-09-2015 02:57 PM
That's a great assumption. I currently use it for immersive photography Real Estate projects in conjuntion with virtual tour defishing software butit'd be nice to be able to defish the center of the shot w/o pulling out the PTGUI software solution that I have to pay for every few years. Changing a fisheye image to a rectilinear one always have tradeoffs.
03-09-2015 03:46 PM
The manual claims it is supported, but I can't register it either. (1D Mark IV and Rebel T5i).
I suspect that all it will do is light falloff and chromatic aberation. Defishing is contrary to the purpose of the lens, so i wouldn't expect Canon to support that action.
03-10-2015 09:19 AM
Maybe they intend to add it later. Maybe they intend to add all their lenses at some time?
05-18-2017 05:57 AM - last edited on 05-18-2017 01:39 PM by Danny
It is possible to "fool" DPP to make it able to do some aberration and distortion correction (tried with version 3.10, not sure if it works with 4.xxx). There is an EXIFTOOL [link removed per forum guidelines] which can modify any EXIF information, including lens.
Since I shoot with non-Canon branded lens, I often have to do this. I'm still experimenting with parameters, but this worked so far.
After puting exiftool.exe in windows directory, copy this line
exiftool -FocalLength=7 -LongFocal=55 -ShortFocal=17 -LensType="Canon EF-S 17-55mm f/2.8 IS USM D:\Your_Photo_Directory
(change D:\Your_Photo_Directory to where your RAW photos are)
and paste in in Windows Start-run field and press enter. Or run CMD and left-click-paste and enter (this is better as you can see if any error happens).
Exif information will be changed and original backup file(s) will be created. After that open your RAW (CR2) file in DPP, and watch if you can correct distortion and aberration. Probably playing with parameters FocalLength, LongFocal and ShortFocal may give any better results.
05-18-2017 01:48 PM - edited 05-18-2017 03:18 PM
Download the latest version of DPP. It has corrections for 8-15mm lens and also allows for some artistic "defishing".
05-19-2017 09:45 AM
Using a different lens' data may not be helpful. In fact it could make things worse. The data is not 17mm or 18mm specific it is lens specific. This is a solution you should not pursue. Poor advice.
05-19-2017 06:36 PM
Try to see if you can download the lens correction into the camera. That download comes direct from Canon. Maybe, just maybe, DPP might hitch a ride on the download.