Chromatic Aberration removal plugin or technique at DVinfo.net

Go Back   DV Info Net > Cross-Platform Post Production Solutions > Adobe Creative Suite

Adobe Creative Suite
All about the world of Adobe Premiere and its associated plug-ins.


Reply
 
Thread Tools Search this Thread
Old June 21st, 2012, 01:00 AM   #1
New Boot
 
Join Date: Mar 2012
Location: Genoa, Italy
Posts: 12
Chromatic Aberration removal plugin or technique

I bought a Sony CX760 for shooting surf, typically very contrasty scenes: white spray and boards, black wetsuits.
When I shoot from the beach with the zoom and also with the zoom conversion lens VCL-HG1737C I get nasty chromatic aberration all over the place. Very disappointed.
I still need to decide if I will keep the camera because I mainly want to shoot from in the water with the sportpack where it will all be wideangle, hopefully that will eliminate the problem.

Anyway I wanted to ask if there are any plugins or filter techniques to remove the CA in Adobe Premiere 6.
I find lots of tutorials for After Effects but of course would like to avoid trips to AE.
Attached Thumbnails
Chromatic Aberration removal plugin or technique-ca.jpg  
Anton Puttemans is offline   Reply With Quote
Old June 22nd, 2012, 04:42 AM   #2
Trustee
 
Join Date: Oct 2006
Location: Antrim, Northern Ireland
Posts: 1,569
Re: Chromatic Aberration removal plugin or technique

Anton,

I can't help, but I wish there was a fix. My NX70E (derived from your camera) suffers from the same problem when zoomed in, it is very frustrating.
Mike Beckett is offline   Reply With Quote
Old June 23rd, 2012, 01:47 AM   #3
New Boot
 
Join Date: Mar 2012
Location: Genoa, Italy
Posts: 12
Re: Chromatic Aberration removal plugin or technique

Yeah it's terrible. Looking more and more at my surf footage I start to see those damn green and purple fridging everywhere, even in my dreams, go figure.
Bah, I am seriously thinking about getting the VG20. The NXFS100 would be awsome but out of my budget.
Any tips on how to prevent/ reduce CA more than welcome...
Anton Puttemans is offline   Reply With Quote
Old June 23rd, 2012, 02:15 AM   #4
New Boot
 
Join Date: Jun 2012
Location: Chicago
Posts: 14
Re: Chromatic Aberration removal plugin or technique

I imagine surfing footage is the toughest to get without CA. A few basic tips to avoid it is to always stop down your aperture and to use the widest angle of your lens you can. I'm an AE guy so I think that's your best bet to try and remove it in post. The same tool many ppl use in AE is also in PPro, the change to color effect.

Removing Chromatic Aberration : Adobe After Effects Podcast
Jerry Karvasale is offline   Reply With Quote
Old June 23rd, 2012, 08:39 AM   #5
New Boot
 
Join Date: Mar 2012
Location: Genoa, Italy
Posts: 12
Re: Chromatic Aberration removal plugin or technique

Thanks for the AE tut Jerry.

I recently saw a tutorial on Magic Bullets website of a pro colorist using Colorista II for removing color casts with the HSL controls. Maybe I should check out the trial?
I think it would be easier to use such a plugin from PP with the new adjustment layer in CS6 because I have not much experience with AE.
How is the integration between PP and AE these days?

Yeah it looks like surf footage is prone to CA problems, but it might not be too difficult removing these casts from this kind of video. After all it's all waves, spray, boards and wetsuits. The purple color would not be too difficult to remove I guess but than again, I have no experience.
Green might be more difficult as our Italian waters are very greenish in sunny conditions.
What are you thoughts about this?
Anton Puttemans is offline   Reply With Quote
Old June 23rd, 2012, 09:43 AM   #6
Major Player
 
Join Date: Dec 2008
Location: Canyon Country, CA
Posts: 430
Re: Chromatic Aberration removal plugin or technique

I don't know if this technique will work with surf shots with video, but it gives amazing results with surf stills in Photoshop. Use the Shadow/Highlight tool, and select a small amount of Highlight (and select zero Shadow).

This removes some of the very bright reflections from the foam and lets the rest of the surf detail stand out and really pop. I've never had to correct for CA after using this effect. Again, I've only used it with stills and never had a chance to try it with video.
Charles W. Hull is offline   Reply With Quote
Old June 23rd, 2012, 05:34 PM   #7
New Boot
 
Join Date: Mar 2012
Location: Genoa, Italy
Posts: 12
Re: Chromatic Aberration removal plugin or technique

Ok, I just found a much better technique than the "change to color effect"

With the three-way color corrector. You basically make a mask in secondary color correction, which you can really fine tune and than color correct for.

Color Correction 4: Secondary Colour Correction : Adobe Premiere Pro Tutorial

I still need to play around with it more, but so far this gives the best results.
I will also try with Magic Bullets Colorista later.
Anton Puttemans is offline   Reply With Quote
Old June 24th, 2012, 06:11 AM   #8
New Boot
 
Join Date: Jun 2012
Location: Chicago
Posts: 14
Re: Chromatic Aberration removal plugin or technique

The integration between AE and PPro is great. Using Adobe Dynamic link you can switch between programs without having to render out. The workflow is decent in CS4. I'm upgrading to CS6 soon and heard it works even better.

Secondary color correction is an interesting idea to correct CA, great for shots with lots of color i imagine.
Jerry Karvasale is offline   Reply With Quote
Old June 24th, 2012, 06:48 AM   #9
Trustee
 
Join Date: Sep 2004
Location: Chislehurst, London
Posts: 1,724
Re: Chromatic Aberration removal plugin or technique

You can open the offending footage in Photoshop (Extended version) and use the CA feature. I have done this several times with footage shot on my EX3

Here is a link to a thread with some examples I posted. - see post number 9

http://www.dvinfo.net/forum/sony-xdc...-question.html
__________________
Eyes are a deaf manís ears. Ears are a blind manís eyes
Vincent Oliver is offline   Reply With Quote
Old June 24th, 2012, 04:47 PM   #10
New Boot
 
Join Date: Mar 2012
Location: Genoa, Italy
Posts: 12
Re: Chromatic Aberration removal plugin or technique

Thank you Oliver about the tip of correcting video in Photoshop!!

I tried it with my footage but unfortunately it looks like my CA is so severe I can't correct for it with the CA filters in Photoshop. I needed a much more fine tuned mask/ keyer.

Secondary color correction does the trick for me, after creating the mask and applying some blur I just lowered the saturation and came up with this. (Note that I did not correct yet for the greens)
Attached Thumbnails
Chromatic Aberration removal plugin or technique-ca2.jpg   Chromatic Aberration removal plugin or technique-ca2-corrected.jpg  

Anton Puttemans is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Cross-Platform Post Production Solutions > Adobe Creative Suite

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 10:16 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network