Is removing purple fringing hard?

NecroticSoldier · 03-18-2010, 04:33 PM

Purple fringing doesn't show up everywhere, but when it does... is it hard to remove during PP?

noahpurdy · 03-18-2010, 04:34 PM

It depends entirely on the software you use. It's incredibly easy to remove with Apple's Aperture 3, but most of the time I'm stopped down to avoid it.

NecroticSoldier · 03-18-2010, 04:46 PM

Originally posted by noahpurdy

It depends entirely on the software you use. It's incredibly easy to remove with Apple's Aperture 3, but most of the time I'm stopped down to avoid it.

Oh, also a follow up question that I just thought of. Would doing so, be not as good as an image originally without purple fringing?

noahpurdy · 03-18-2010, 05:07 PM

Originally posted by NecroticSoldier

Oh, also a follow up question that I just thought of. Would doing so, be not as good as an image originally without purple fringing?

You always want to get it right in the camera first, any changes made in post will reduce the quality of the image overall.

NecroticSoldier · 03-18-2010, 09:21 PM

Originally posted by noahpurdy

You always want to get it right in the camera first, any changes made in post will reduce the quality of the image overall.

I guess so ;(

reeftool · 03-19-2010, 09:00 AM

Originally posted by noahpurdy

You always want to get it right in the camera first, any changes made in post will reduce the quality of the image overall.

Purple fringe is a lens issue that happens most often with older lenses designed for film cameras but does happen with newer lenses to a lesser degree. Stopping down helps but with some lenses it's impossible to avoid in some lighting conditions.

rawr · 03-19-2010, 09:51 AM

Originally posted by NecroticSoldier

Purple fringing doesn't show up everywhere, but when it does... is it hard to remove during PP?

With the K-x, of course, purple fringing/chromatic aberration can be removed automatically in-camera, if you are using a supported Pentax lens and saving as JPG. Can't get much easier than that.

Aside from that, most image editors, including Pentax DCU, will let you remove it or minimise it pretty easily.

NecroticSoldier · 03-19-2010, 09:52 AM

Originally posted by rawr

With the K-x, of course, purple fringing/chromatic aberration can be removed automatically in-camera, if you are using a supported Pentax lens and saving as JPG. Can't get much easier than that.

Aside from that, most image editors, including Pentax DCU, will let you remove it or minimise it pretty easily.

Oh, I have seen this function on the K-X but never really bothered with it or read into it. Thanks, but I might be using a Tamron 70-300mm that has SOME PF... ;/

cps_goodbuy · 03-19-2010, 09:58 AM

Google: "Purple Fringe Killer"

A PS CS Plugin thats said to do a good job, there is also a review here:

HDR and the Purple Fringe

rawr · 03-19-2010, 12:23 PM

Originally posted by NecroticSoldier

Oh, I have seen this function on the K-X but never really bothered with it or read into it. Thanks, but I might be using a Tamron 70-300mm that has SOME PF... ;/

I recently picked up a Tamron 70-300. It's not as good as it could be re PF, but it ain't too bad at all.

What graphics software do you normally use?

NecroticSoldier · 03-19-2010, 02:45 PM

Originally posted by rawr

I recently picked up a Tamron 70-300. It's not as good as it could be re PF, but it ain't too bad at all.

What graphics software do you normally use?

I haven't gotten to be using ANY yet... so Pentax Utility...

rawr · 03-19-2010, 09:24 PM

The DCU 4 software that came with the K-x is great as a RAW converter and can also do fine at correcting CA/PF.

Open DCU 4 > Open image (RAW or JPEG) > Laboratory > Lens Aberration Correction tab > Lateral Chromatic Aberration Correction, then play around with the red or blue sliders until the purple fringing is reduced or goes away.

shawnxji · 04-14-2010, 11:56 AM

I know that in Paint Shop Pro, which is what I use, there's the Purple Fringe Fix to remove purple fringing. Depends on the colors in your photo it might or might not work perfectly.

Wheatfield · 04-14-2010, 12:25 PM

Originally posted by noahpurdy

You always want to get it right in the camera first, any changes made in post will reduce the quality of the image overall.

How do you figure that?

Eruditass · 04-14-2010, 12:29 PM

I believe it depends highly on the kind of PF. Longitudinal is very hard to remove, lateral is easy:

Chromatic aberrations

03-18-2010, 04:33 PM	#1
NecroticSoldier Veteran Member Join Date: Feb 2010 Location: Scarborough, Ontario Photos: Albums Posts: 488	Is removing purple fringing hard? Purple fringing doesn't show up everywhere, but when it does... is it hard to remove during PP?

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03-18-2010, 04:34 PM	#2
noahpurdy Veteran Member Join Date: Nov 2009 Location: Pittsburgh, PA Posts: 479	It depends entirely on the software you use. It's incredibly easy to remove with Apple's Aperture 3, but most of the time I'm stopped down to avoid it.

03-18-2010, 04:46 PM	#3
NecroticSoldier Veteran Member Join Date: Feb 2010 Location: Scarborough, Ontario Photos: Albums Posts: 488 Original Poster	Originally posted by noahpurdy It depends entirely on the software you use. It's incredibly easy to remove with Apple's Aperture 3, but most of the time I'm stopped down to avoid it. Oh, also a follow up question that I just thought of. Would doing so, be not as good as an image originally without purple fringing?

03-18-2010, 05:07 PM	#4
noahpurdy Veteran Member Join Date: Nov 2009 Location: Pittsburgh, PA Posts: 479	Originally posted by NecroticSoldier Oh, also a follow up question that I just thought of. Would doing so, be not as good as an image originally without purple fringing? You always want to get it right in the camera first, any changes made in post will reduce the quality of the image overall.

03-18-2010, 09:21 PM	#5
NecroticSoldier Veteran Member Join Date: Feb 2010 Location: Scarborough, Ontario Photos: Albums Posts: 488 Original Poster	Originally posted by noahpurdy You always want to get it right in the camera first, any changes made in post will reduce the quality of the image overall. I guess so ;(

03-19-2010, 09:00 AM	#6
reeftool Pentaxian Join Date: Dec 2007 Location: Upstate New York Photos: Gallery \| Albums Posts: 9,553	Originally posted by noahpurdy You always want to get it right in the camera first, any changes made in post will reduce the quality of the image overall. Purple fringe is a lens issue that happens most often with older lenses designed for film cameras but does happen with newer lenses to a lesser degree. Stopping down helps but with some lenses it's impossible to avoid in some lighting conditions.

03-19-2010, 09:51 AM	#7
rawr Veteran Member Join Date: Jun 2009 Posts: 11,913	Originally posted by NecroticSoldier Purple fringing doesn't show up everywhere, but when it does... is it hard to remove during PP? With the K-x, of course, purple fringing/chromatic aberration can be removed automatically in-camera, if you are using a supported Pentax lens and saving as JPG. Can't get much easier than that. Aside from that, most image editors, including Pentax DCU, will let you remove it or minimise it pretty easily.

03-19-2010, 09:52 AM	#8
NecroticSoldier Veteran Member Join Date: Feb 2010 Location: Scarborough, Ontario Photos: Albums Posts: 488 Original Poster	Originally posted by rawr With the K-x, of course, purple fringing/chromatic aberration can be removed automatically in-camera, if you are using a supported Pentax lens and saving as JPG. Can't get much easier than that. Aside from that, most image editors, including Pentax DCU, will let you remove it or minimise it pretty easily. Oh, I have seen this function on the K-X but never really bothered with it or read into it. Thanks, but I might be using a Tamron 70-300mm that has SOME PF... ;/

03-19-2010, 09:58 AM	#9
cps_goodbuy Senior Member Join Date: Jul 2009 Location: Ireland Posts: 291	Google: "Purple Fringe Killer" A PS CS Plugin thats said to do a good job, there is also a review here: HDR and the Purple Fringe

03-19-2010, 12:23 PM	#10
rawr Veteran Member Join Date: Jun 2009 Posts: 11,913	Originally posted by NecroticSoldier Oh, I have seen this function on the K-X but never really bothered with it or read into it. Thanks, but I might be using a Tamron 70-300mm that has SOME PF... ;/ I recently picked up a Tamron 70-300. It's not as good as it could be re PF, but it ain't too bad at all. What graphics software do you normally use?

03-19-2010, 02:45 PM	#11
NecroticSoldier Veteran Member Join Date: Feb 2010 Location: Scarborough, Ontario Photos: Albums Posts: 488 Original Poster	Originally posted by rawr I recently picked up a Tamron 70-300. It's not as good as it could be re PF, but it ain't too bad at all. What graphics software do you normally use? I haven't gotten to be using ANY yet... so Pentax Utility...

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03-19-2010, 09:24 PM	#12
rawr Veteran Member Join Date: Jun 2009 Posts: 11,913	The DCU 4 software that came with the K-x is great as a RAW converter and can also do fine at correcting CA/PF. Open DCU 4 > Open image (RAW or JPEG) > Laboratory > Lens Aberration Correction tab > Lateral Chromatic Aberration Correction, then play around with the red or blue sliders until the purple fringing is reduced or goes away.

04-14-2010, 11:56 AM	#13
shawnxji Senior Member Join Date: Oct 2009 Location: DC Metro, USA Posts: 212	I know that in Paint Shop Pro, which is what I use, there's the Purple Fringe Fix to remove purple fringing. Depends on the colors in your photo it might or might not work perfectly.

04-14-2010, 12:25 PM	#14
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,976	Originally posted by noahpurdy You always want to get it right in the camera first, any changes made in post will reduce the quality of the image overall. How do you figure that?

04-14-2010, 12:29 PM	#15
Eruditass Veteran Member Join Date: Jul 2009 Photos: Gallery Posts: 2,207	I believe it depends highly on the kind of PF. Longitudinal is very hard to remove, lateral is easy: Chromatic aberrations