Highlight issues

Rick142

• 3. Oktober 2009 19:17

This is something I've noticed with every version of Capture One and I wonder if anyone else sees this or maybe has a solution. When I have a highlight value of say, 245, 245, 245 and I process the image, they end up at least 5 points higher in Photoshop. Maybe I am doing something wrong so any advice is appreciated. I don't find the HDR Highlight adjustment to be useful with very high values and it tends to lower general highlight contrast.

Also this is not really related but I find my processed images tend to appear darker than they should and I wonder if it is because I am not used to the new default dark background so I think I am going back to the lighter background of version 3. Just wondering if anyone has had similar thoughts.

Thanks,

Rick

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  Rick142

  • 3. Oktober 2009 20:04

  I thought I would follow up with one more thought. I often use unsharp mask with a 20-50-0 setting in Photoshop to give some snap to an image and it appears to me that the Clarity slider in Capture One produces much the same result. But I can put a mask in Photoshop to keep this from affecting the highlights and I don't believe there is any such option available in Capture One. Blown highlights are my biggest problem as I shoot a lot of aerials that feature white textured roofs and to get the best results I end up bringing a relatively flat image into Photoshop so I can do my masking. Would love to have some tools in Capture One to deal with the highlights.
  
  Rick

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  Paul Steunebrink

  • 3. Oktober 2009 20:29

  I was doing some painting reproduction work today, having a gray/color card in the picture. I checked the luminance level of light and dark gray parts in CO4 & Photoshop CS4. Values are max. 1-2 levels higher in CS4 on my system. I was processing 5D mkII raw images.
  
  I find HDR highlight adjustment useful up to a value of 50, or less when I have already lowered the exposure value. The HDR tools compresses the translation of raw values into RGB values at the end of curve, hence flattening the image somewhat. This is how highlight (or shadow) recovery works. For heavily blown highlights I still prefer my 2-images-merged-into-1 technique (interior architecture). I either create the 2 processed images (normal and dark) from one exposure or if possible from 2 different exposed images.
  
  I actually never use the clarity tool but always use levels and sometimes curves.

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  Rick142

  • 3. Oktober 2009 20:53

  Thanks, I have on occasion brought two images into Photoshop to rescue the highlights and that is an option except when I am working on a ton of images. I wish there was a way in Capture One to limit the HDR highlight recovery to specified values.
  
  Rick

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  Nicolas

  • 3. Oktober 2009 21:10

  [quote="Rick142" wrote:
  I thought I would follow up with one more thought. I often use unsharp mask with a 20-50-0 setting in Photoshop to give some snap to an image and it appears to me that the Clarity slider in Capture One produces much the same result. But I can put a mask in Photoshop to keep this from affecting the highlights and I don't believe there is any such option available in Capture One. Blown highlights are my biggest problem as I shoot a lot of aerials that feature white textured roofs and to get the best results I end up bringing a relatively flat image into Photoshop so I can do my masking. Would love to have some tools in Capture One to deal with the highlights.
  
  Rick

  
  Agreed! see here (point 18): viewtopic.php?f=21&t=7556&p=31845#p31845

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