Chromatic Abberation (Page 2): I believe this is a natural effect, that AWB would push away from blue if anything under this situation, but we'll never know.

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Chromatic Abberation

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Feb 25, 2018 19:38:46 #

rehess Loc: South Bend, Indiana, USA

blackest wrote:

I think the camera was probably set in awb and the... (show quote)

I believe this is a natural effect, that AWB would push away from blue if anything under this situation, but we'll never know.

Feb 25, 2018 19:55:10 #

Joe Blow

A suggestion is to keep your original shot untouched. When you are editing it, save it with a different name. The way I do it is take the original number and add a suffix to it. I save these in a folder inside that folder so everything is right where I can easily find it.

So photo 8714.JPG stays in the mother folder and in the edited folder is 8714-1.JPG. If I want to re-visit the original photo, I know where it is and can pull it back up for more edits.

Feb 25, 2018 20:20:37 #

rdrechsler Loc: Channel Islands Harbor, CA

blackest wrote:

I think the camera was probably set in awb and the bulk of the water probably shifted the balance towards cooler than it should have been.

Thank you, thank you, thank you. That explains everything clearly. From now on my cameras will be set on JPEG+RAW. As a novice, I’m not ready to tackle white balance adjustments in the camera yet, but eventually I will. In the meantime, I have learned how to make WB adjustments in PS. Great explanation. I’m saving it for future reference when I’m proficient enough with the basics to start experimenting with the white balance. Cheers, Dick

Feb 25, 2018 20:54:47 #

rdrechsler Loc: Channel Islands Harbor, CA

For what it's worth, I found the un-retouched original of the seagull picture. It's not RAW, but it is the original JPG. If anyone wants to have a go at solving the Chromatic Aberration and/or White Balance issues, it would be interesting to me and I'm sure quite a few others struggling with advanced camera settings and PS. Have fun, Dick

(Download)

Feb 25, 2018 21:28:31 #

blackest Loc: Ireland

rdrechsler wrote:

Ok I had a go :)

(Download)

Feb 25, 2018 21:39:40 #

rdrechsler Loc: Channel Islands Harbor, CA

blackest wrote:

Ok I had a go :)

That's very interesting. So what did you think, was that a chromatic aberration or a white balance issue, or both? This is extremely instructional. I love this group!

Thanks,
Dick

Feb 26, 2018 00:32:04 #

rgrenaderphoto Loc: Hollywood, CA

rdrechsler wrote:

... if you shot in RAW instead of JPEG. And, for something like removing chromatic aberration, you should really use Lightroom, not Photoshop.

I know, dumb error. I won’t make that mistake again.
I just downloaded Lightroom CC, so I’ll poke around to see what I can do.
Thank you.[/quote]

Personally, Lightroom CC is not really ready for prime time. You'd be better off with Lightroom Classic CC.

Feb 26, 2018 01:21:14 #

rdrechsler Loc: Channel Islands Harbor, CA

rgrenaderphoto wrote:

Personally, Lightroom CC is not really ready for prime time. You'd be better off with Lightroom Classic CC.

Good to know. That’s an option so I’ll download it tomorrow.

Feb 26, 2018 04:00:28 #

blackest Loc: Ireland

rdrechsler wrote:

That's very interesting. So what did you think, was that a chromatic aberration or a white balance issue, or both? This is extremely instructional. I love this group!

Thanks,
Dick

mostly white balance

Chromatic abberation tends to be yellow and red fringing purple and green all on edges. The odd coloring on areas seems to be more of a white balance thing.

Feb 26, 2018 07:33:40 #

jwn Loc: SOUTHEAST GEORGIA USA

temperature correction, should get rid of blue...use the DPP software supplied by Canon

Feb 26, 2018 08:25:08 #

SyZyGy Loc: Temple, NH

It doesn't look like CA to me.
I have strong prescription glasses and was given high density lenses once - to try and make them less thick. They had terrible CA, so I'm all too familiar with the look.

You might look into the phenomenon of "shadow color", for example here: (which I find hastily with a google search)
http://www.peachpit.com/articles/article.aspx?p=486505&seqNum=3
Shadow colors occur as a combination of lighting colors cast shadows into each other. A strong yellow-orange direct lighting (from a low sun for instance) casting a shadow into whiter light (say from the upper atmosphere) will make the shadow of yellow-orange light look blue on a white surface.
Shadow colors are a very interesting and striking phenomenon to demonstrate. And they appear in photographs. A zoomed-in photograph, removed from lighting context can make the color look out of place - but if there were a Sun in the right of the image it would look totally natural to the eye.

Feb 26, 2018 09:55:34 #

SusanFromVermont Loc: Southwest corner of Vermont

rdrechsler wrote:

Good to know. That’s an option so I’ll download it tomorrow.

I was going to point out the same thing. LR CC is for mobile phones and cloud storage. LR Classic CC is the equivalent of the previous LR CC before Adobe made changes. If you are using a computer and saving your images on it, LR Classic CC is the way to go. I did not even download the LR CC version, to make sure I did not start working in the wrong one!

LR has good features for chromatic aberration as well as many other things. LR Classic CC and PS CC work together very well. LR for photo organizing and initial edits [most are "global" - affecting the whole picture], PS for more in depth and localized edits to produce a finished image [can work at the pixel level if you need to].

Feb 26, 2018 10:30:21 #

agillot

at time , i use VERY LIGHT long lenses , very good for chromatic aberration , purple fringing , in bright sun light with mostly white birds , the way to fix this is to turn the picture in black and white , the purple goes away .

Feb 26, 2018 11:56:53 #

jeep_daddy Loc: Prescott AZ

rdrechsler wrote:

I don't, but the good news is, there are no shortages of seagulls to shoot around here....right off my back porch. I'll get better at this, I'm sure. Practice, study, practice, study some more ;-) White balance is a whole new topic. I tried adjusting it in PS, but not with much success. You're right, I needed a raw image and I goofed that up. Live and learn! I'll be back...LOL.

You have the right idea. Learn from some of your mistakes, ask questions, make some changes, and eventually you will get images you can be proud to hang on your wall.

Feb 26, 2018 22:17:42 #

BobHartung Loc: Bettendorf, IA

crazydaddio wrote:

What blue line?
The left wing has a blue line extending to across the tail. If that is what you meant, I dont think that is CA imho.

I am not an expert but CA in my experience shows up in sharp transitions from dark to light where the lens has difficulty seperating all the colors of the rainbow.

If the blue line extends across the tail of the bird...its not CA...

There are others who are experts who can weigh in here....

I think you are right. I seems as if this is WB off in the shadowed area of the birds white feathers. Anyone else?

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