Moiré disaster on the E-5

Started Jul 10, 2013 | Discussions thread
olyflyer Forum Pro • Posts: 24,126
Actually, you can avoid this.

petrbur wrote:

Barry Stewart wrote:

Surely he could/would see the same problem, if I sent shots via e-mail for him to preview. No?

Barry, because this case is a viewer-software related problem (not the camera problem), you have to expect that anybody receiving that photo from you in any electronic form (usually JPG file) may see some kind of problematic moiré.

Hi Petr,

I hope you are doing well and everything is fine in Varberg.

This is also a general problem of such regular fine patterns.

I am afraid you can't avoid it.

The way to avoid this is to create two or even three different versions of the same image, risized to the final resolution using your own workflow and checking the critical parts out before handing over to the customer. I always create three different versions, assuming the images are given to anyone or shown in public.

  1. Original maximum number of pixels for printing large prints.
  2. Reduced to small web-size, or computer screen resolution, which in my case is 1920x1200, whichever fits best, depending on the image orientation.
  3. TV resolution in 1920×1080 pixels, again, whichever fits the image best, depending on orientation of the image.

This way, moire caused by the viewer software is most probably avoided, assuming you have done the resizing right. If the resizing is done wrong there can still be moire as a result of that. Of course, if the original image contains the moire pattern that is a different thing.

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