Purple Fringing: A losing battle.

[Fighting_falcon_51]

I have been having problems on and off with my Tamron 70-300 lens with purple fringing. Some days it works fine and others it has massive purple fringing. I realized I tend to have more issues if I am not shooting in optimal light. I know it is not an issue with my camera because during airshow I shot with a Tamron 70-300VC and I had no issues at all.

Recently, I went to Atlantic City airshow (which has very bad lighting) and a lot of my pictures had purple fringing I tried to remove it via Hue saturation and it ruins the sky and darkens the plane a lot and leaves minor noise and artifacts around the plane. Here are some pics of my attempt:

1.Before:
http://i1027.photobucket.com/albums/y340/Kenneth_Pagliughi/ThunderbirdsOriginal.jpg
After:
http://i1027.photobucket.com/albums/y340/Kenneth_Pagliughi/ThunderbirdsFringingRemoved.jpg
2.Before:
http://i1027.photobucket.com/albums/y340/Kenneth_Pagliughi/SkytypersOriginal.jpg
After:
http://i1027.photobucket.com/albums/y340/Kenneth_Pagliughi/SkytypersFringingRemoved.jpg
3.Before:
http://i1027.photobucket.com/albums/y340/Kenneth_Pagliughi/SeaKnightOriginal.jpg
After:
http://i1027.photobucket.com/albums/y340/Kenneth_Pagliughi/SeaKnightFringingRemoved.jpg
4.Before:
http://i1027.photobucket.com/albums/y340/Kenneth_Pagliughi/KC-10Original.jpg
After:
http://i1027.photobucket.com/albums/y340/Kenneth_Pagliughi/KC-10FringingRemoved.jpg
5.Before:
http://i1027.photobucket.com/albums/y340/Kenneth_Pagliughi/IMG_1768e3.jpg
After:
http://i1027.photobucket.com/albums/y340/Kenneth_Pagliughi/HeavyMetalOriginal.jpg


If you want a closer look I uploaded a zip file you can download HERE (http://www.4shared.com/file/mR0Xnbhi/Purple_Fringing.html?)

I know there may not be much I can do to fix the pictures but any suggestions are welcome!

Also I am probably going to get my lens looked at but it looks like I will upgrade and just keep this one as a last resort backup.

Thanks!

[alevik]

Hi. Purple fringing does happen in these conditions, even sometimes with the best lenses. The high contrast just causes too much aberration and the light "breaks down" so to speak.

I tried just a normal edit, at 1000pix wide. Hope you don't mind but only way I seemed to find to post it here was to put in on my Flickr.

http://farm7.static.flickr.com/6068/6099080938_e184095d94_z.jpg (http://www.flickr.com/photos/36221109@N04/6099080938/)
Not my image uploaded for edit assist (http://www.flickr.com/photos/36221109@N04/6099080938/) by alevik123 (http://www.flickr.com/people/36221109@N04/), on Flickr

I did a standard crop, spot removal, adjust levels and sharpen. Looks not too bad.

The others - the Sea Knight is too blurry, and the KC-10 too washed/out or flat to adjust.

Peter

[Derf]

Ken has the 70-300di pictured in the middle below.

http://www.longislandwallpapers.com/photos/1199011553_KaaQP-XL.jpg

The purple fringing was not noticeable at all on my first lens from this thread.
My Cheap Tamron Lens thread (http://nycaviation.com/forum/threads/30678-My-amazing-new-CHEAP-lens%21?highlight=tamron)
until I broke it. I took it to get fixed but the purple fringing was really horrible after a complete rebuild. They ended swapping out the lens and I was told it was almost never done. Now it is a backup as I have the Bad boy 70-300VC on the left!!!! My middle lens now has 5 pictures on it total!

[gonzalu]

The Photoshop ACR and LR 3.x Lens Correction modules do a great job of controlling the CA and other optical imperfectionspretty well. Give it a shot

[Fighting_falcon_51]

alevik: I don't mind at all that you uploaded it to Flickr. I saw a lot of improvement in the edit. Thanks

gonzalu: I'll give it a shot.