Originally posted by DimC Thanks John,
I dont like the halo effects around the trees, maybe I went overboard with the polarized sky I dont know.
ON1 is getting better every iteration, can't wait to see their next update.
I agree with both you and John, it's a cool pic but the halo around the tree sucks.
To address the haloing, you can try a couple of approaches. Please disregard if you've used them, but it's worthwhile mentioning as this type of image should be an easy fix regarding the halo.
Firstly, it's reasonable to expect some blooming in the centre of frame as you've captured the sun. Use this to your advantage. For example once you've got the halo sorted try using a natural sunshine filter, use the gear icon to open the application and protection options and test the image with the options you have for how it is applied and what is protected. The Sunshine filter will increase overall contrast so it's a matter of balancing this light to prevent highlights/darks blowing out. Check on this using the Loupe view and click on one of the arrows located in the top right or left corners. be aware that this filter has some default glow that will soften things so often I apply it with a mask or turn off the glow. You may not like or need a Sunshine filter, you may already have applied one but again thought I'd mention it.
For the halos, there are two elements that can assist with this, I will cover the 'Color Enhancer' approach first. In FX you can use the colour channels to selectively darken parts of your image. You can do this in Develop but as FX provides masking you have much more control on how a filter is applied. And adjusting the colour often helps keep a scene natural whilst making the most of the colours present. This approach will allow you to darken the blues and aqua colours relevant in the sky around the branches. I often do this colour balancing prior to any other PP work so the colours are correct in saturation, tint and luminance. You may not need anything else to fix the halo as the trees are a different colour and will not be affected by darkening the other colour channels. Try lightening the yellow, red and orange channels for luminance changes that may impact the tree branches. You might get to lighten them whilst darkening the sky, but be subtle to avoid blooming. To reset any slider adjustments just double click the slider name and it will return to it's default setting.
The best approach out of the options available to you is via a luminance mask.. This can be done using the local adjustments panel or the 'Tone Enhancer' filter in FX. I'd recommend using the Tone Enhancer as it will allow you to use curves which is I think a better way of managing contrast and luminance values. However looking at your image I'd suggest you've darkened the sky with a masking brush. If so you could tidy up your current image by selecting the perfect brush with a high opacity and low feather. As you commence brushing from the sky press the CTL key or if I have it right for Macs, the CMD key. This will only change the parts of the image that are the same as that first selected. This will mean no impact upon the tree branches. It is possible there'll still be some haloing unless you want to zoom in and take your time getting the details correct.
A faster way would be to grab a Tone Enhancer filter, click on 'Curves' at the bottom of the panel and click and drag down the line at the centre. This will darken the entire image. Click on the mask then select 'lumen'. Select 'View' and check where this is applied, ensure the mask view is set to 'Grayscale'. Now below the masking box you have four sliders for applying the luminosity mask. You can also use the colour picker, but using the sliders should work due to the contrasting luminance levels of the sky and trees. The entire image is affected to various levels in the default setting with more applied to highlights and less to the dark areas. try the 'Window' slider and see if that will allow you to isolate to the sky only. This maybe all you need to do, if it looks right turn off view mask by clicking 'View' again. If that doesn't quite work you can then go to the 'Levels' slider and adjust these to get the desired look. If it still doesn't look right turn off the Window slider adjustments and just rely on the levels slider. With a bit of trial and error you should get the image without the halos. If there's areas affected that you don't want affected by the mask you can use the brush to mask them out too.
Hopefully I wasn't going over stuff you know, and the above will help avoid halos in the future.
Tas