Quick Lightroom question
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Discussion

tenohfive

Original Poster:

6,276 posts

211 months

Monday 15th July 2013
quotequote all
I'm using the adjustment brush with automask on in LR5 and sometimes (usually when something is silhouetted against a sky) I'm getting a fringe a pixel or two wide on the very edge, usually in some bright colour.

Right now I'm getting around this by taking it into Elements and using a lot of zoom and the clone stamp but I thought there might be a better way that keeps me in Lightroom?

markmullen

15,877 posts

263 months

Monday 15th July 2013
quotequote all
I don't use LR so might be barking up the wrong tree but what you descibe sounds like Chromatic Aberration, most raw processors have an option to reduce it or even remove it completely. Usually the fringing is purple or cyan.

K12beano

20,854 posts

304 months

Monday 15th July 2013
quotequote all
^^^^^^^ wot 'e sez
tenohfive said:
....usually in some bright colour.
Is it magenta or cyan?

Go down to your adjustments and see what LR can do automatically for you, then take into manual.



However, if you mean the adjustment brush sort of 'bleeds' over you haven't your brush settings quite right - or just "nibble back" your selection with the Alt key (or is it Ctrl, I can never remember, I just manage to do it automatically)

K12beano

20,854 posts

304 months

Monday 15th July 2013
quotequote all
PS I find the most practical way to use the adjustment brush is to have the default setting to minimum exposure (sometimes maximimum) and everything else set at zero (in the middle).

Then when you go to paint the first thing is you see the things you're touching go black (or white) and simply double click back in the middle to reset the exposure when you've got the selection you want. I find that's a lot easier than fiddling around with the mask showing you in red overlay or whatever. Works for the gradient as well.

Simpo Two

92,697 posts

294 months

Monday 15th July 2013
quotequote all
No no no gentlemen, you're getting it all wrong. What the OP needs to do is buy a lens costing at least £1500!

markmullen

15,877 posts

263 months

Monday 15th July 2013
quotequote all
Simpo Two said:
No no no gentlemen, you're getting it all wrong. What the OP needs to do is buy a lens costing at least £1500!
It may well reduce the CA... smile

tenohfive

Original Poster:

6,276 posts

211 months

Monday 15th July 2013
quotequote all
Vaguely, yes. I use the automasking to so that I don't colour over edges, and on one example it was the edge of an object in deep shadow highlighted against a sunset - I was really pushing the shadows. On the other occasion I was pushing the sky (but not that strongly) whilst leaving the silhouetted landscape dark, but the landscape had a bit of the fringe.

I'd post an example but I binned the photo's after correction.

And I do the same as you Beano, bright white so I can see where I'm painting.