|
|
| I think this points to the importance of DPs documenting shots with lens and sensor, so we can recreate the FOV to remove lens distortion using Optics Compensation or other effects. Even better would be this ending up in the metadata, and plug-ins being able to access it directly/automagically.
(Point of frustration: When I take stills with my 5D, the lens information appears in Bridge; when I shoot video with the same camera, I am hard pressed to find the same information in either Bridge or AE.)
In the meantime, The Foundry's ability to reverse engineer the lens distortion is one of its advantages over AE's new Camera Tracker.
- Chris
On Jun 29, 2012, at 10:02 AM, Darby Edelen wrote: Distort > Optics Compensation is intended for removing and reintroducing distortion. It's fairly straightforward and requires you to adjust the properties manually as it does no analysis of the footage. This is usually easiest to do on footage that should have strong
vertical or horizontal lines in it. You can put a layer with the grid
effect above your footage to guide the process.
Once you have the properties all set for your undistortion, you'll need another copy of the effect applied after compositing (on an adjustment layer, or up a comp level) with the "Reverse Lens Distortion" checkbox enabled in order to redistort the footage.
Other than that I know that The Foundry's CameraTracker has some lens distortion features that will analyze a sequence and generate data on distortion that can be used to undistort/redistort. There's at least one free tutorial on using that feature:
http://www.thefoundry.co.uk/products/cameratracker/training/#class8
-D
On Fri, Jun 29, 2012 at 8:46 AM, Byron Nash <byronnash@gmail.com> wrote:
Apparently no one using AE removes lens distortion. ;-)
On Thu, Jun 21, 2012 at 9:07 AM, Ross Shain <rosss@imagineersystems.com> wrote:
Hi folks,
I am curious to hear from any experienced AE artists who deal with lens distortion issues...
Specifically, if you are using 3rd party applications to undistort/distort or manual techniques with AE. If anyone would like to share their workflow or shortcomings, I am quite interested to hear from you.
Feel free to email me direct or post if this is a valuable thread to comment on.
Thanks,
Ross
--
Ross Shain
Chief Marketing Officer
Imagineer Systems - developers of mocha planar tracking and visual effects tools.
www.imagineersystems.com
|
|
