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I've a Nikon D810 and am using the nikor 105mm f2.8 macro lens.

I'm also using helicon focus to focus stack images. Unfortunately the resulting picture has a halo effect on some the boundaries of some objects in the image.

What is the best way to completely avoid this?

  • You can try to increase the radius of the area the program uses to determine the contrast, see here. – Count Iblis May 3 '15 at 3:12
  • Another reason can be movement of the image - sometimes you can get rid of the halo by removal of one (or more) of the images in the stack. – Chris Walton May 3 '15 at 18:53
  • @CountIblis that was the first thing I tried as per the docs but it didn't make a difference. – numan May 4 '15 at 12:41
  • @ChrisWalton interesting. I should try that next time. Kinda tedious to hunt through pictures (esp. large NEF files) – numan May 4 '15 at 12:43
  • It is not quite as bad as it seems to search through the images - it is usually obvious roughly where in the stack the image lies, and only a portion of the stack needs searching. – Chris Walton May 4 '15 at 14:54
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I just increased the DOF from 3.2 to 8 and all the halo just went away.

Please note I did play around with increasing the radius setting but that didn't make a difference.

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