lens correction

JDlugosz wrote on 7/13/2013, 2:26 AM

I have video shot with a super wide angle lens (GoPro HERO3) and I want to apply a lens correction to reduce the fisheye effects and then crop out a rectangular portion of the result. I can easily apply lens corrections to stills using Lightroom. But I don't see such an effect listed in MS12Platinum.

Is there a plug-in I can add for that?

Comments

altarvic wrote on 7/13/2013, 5:51 AM

proDAD Defishr (standalone application)

DDDyson wrote on 7/13/2013, 7:25 AM

A plugin would be a better option than stand alone, as you would not need a time comsuming (and lossy OR disk space wasting) intermediate pass. Alas, there is little such available for Vegas.

There is the NewBlueFX Video Essentials II Lens Correction plugin, but it does it wrong. It's impossible to get correct results from it due to an aspect ratio error. They refuse to fix this bug.
http://www.newbluefx.com/product/video-essentials-ii

The Tuttle OpenFX library has 64-bit Windows build of the plugins available, inlcuding a Lens Correct, but I couldn't get it to work because Vegas 12 (x64) crashes on start when trying to load them.
https://sites.google.com/site/tuttleofx/

I have extensively complained about the lack of such a plugin for Vegas in this thread:
http://www.sonycreativesoftware.com/Forums/ShowMessage.asp?ForumID=12&MessageID=859804

DDDyson wrote on 7/15/2013, 4:01 AM

BTW, since you have a GoPro, ProDad also offers cheaper alternative to Defishr aimed specifically for GoPro users: ProDRENALIN.

(but it's still stand-alone, not a plugin)

JDlugosz wrote on 8/5/2013, 4:13 AM

Thanks, I just tried ProDRENALIN for the HERO needs. The 64-bit exe just crashes when I try it. The 32-bit seems to do a tidy job on lens correction at a click, but the motion stabilization seems to have just made everything rubbery in the 10 second clip I could save. And the BSOD is not a good sign...

The deform filter does a fair enough job, but I think I'm really abusing what it's meant for, and I can't get smooth in-editor playback at all when that is turned on. I started another thread on that; I'm used to Premere 1.5 so I'm not sure how to use Vegas effectively, I suppose.

DDDyson wrote on 8/10/2013, 5:27 AM

Deform is a bit performance heavy so it will probably not play realtime in Vegas with full HD material, but it will render fine.

It's impossible to get correct spherical lens correction with Deform however, due to the way the edge curves are interpolated. The image will appear to warp.

You can get perfect results with an AVISynth filter called Defish, but that's quite difficult to get working - and it's a separate process, not a Vegas plugin so again, you're stuck with a lossy and time consuming intermediate phase.