strange grid effect

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Joined: 04.06.2020 07:21

strange grid effect

Post by clarecollins »

I am doing a trial of Helicon for focus stacking. This week I did a photo session where I shot some peony flowers using the focus bracketing in my Fuji XT3 camera then stacked the images in Helicon. I took 7 fairly different compositions, all in RAW.

All the results from Helicon look brilliant at first sight but have a strange grid effect when you zoom in which isn't there in the individual images. The appearance is like a canvas texture overlay

Please can you explain this and tell me how to avoid it.

Please find attached example of the problem
Thank you
close up of Helicon output showing the problem
close up of Helicon output showing the problem
peony detail-1.jpg (92.07 KiB) Viewed 550 times
peony image first in stack-1.jpg
first of the input images
(263.14 KiB) Not downloaded yet
peony image focus stacked-1.jpg
Helicon output
(461.37 KiB) Not downloaded yet
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