That was the conclusion I was coming to. But (for this image at least)
the effort is far too much to be justified for other than instruction. :-)
Let's hope this image is an abberation of this particular camera/lens.
As David has pointed out, this 35/2.8 equivalent for the E-P1 should
have been a slam-dunk.
Chuck Norcutt
Moose wrote:
> Chuck Norcutt wrote:
>> Yes, it works for me but how did you do it? I had to use CA correction
>> tools from ACR or PTLens applied separately to both horizontal and vertical
>> orientations. But I still didn't get the degree of correction you attained.
>>
>
> I didn't try any CA correction tools. Like AG, I'm not entirely
> convinced these color fringes are solely lens CA. Even more so now that
> Wayne has pointed out green/magenta fringes.
>
> Even if they were true lens CA, I would probably first try the technique
> Winsor first pointed out, and which I used for both sets of fringe
> colors on this image.
>
> 1. Create a copy layer [Ctrl-J]. You will likely need to make it a mask.
>
> 2. Image=>Adjustments=>Hue/Saturation [Ctrl-U]
>
> 3. In the drop down box at the top, select the color you want to work on.
>
> 4. Pull the Saturation slider down until the fringe color disappears.
>
> 4. You may fine tune the color range selection with the droppers and.or
> the bottom sliders that control primary range and feathering.
>
> 5. You may need a little adjustment of the lightness slider to balance
> the affected area with adjoining areas.
>
> 6. In most cases, you will need to make this top layer a mask, make the
> mask black [Ctrl-I], and paint in the areas that need color fringing
> correction with white. Otherwise, the color balance of the rest of the
> image gets ... odd.
>
>> On the other hand I wasn't working at 200%. Is that the key?
>>
>
> No. As you can see above, I used an entirely different approach. I only
> worked at the original image size, although I sometimes viewed it on
> screen at more than 100%. 400% makes it a lot easier to be precise in
> using the droppers. I only upsized the crops for display to make the
> effect easier to see.
>
> Moose
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|