Macro Focus Stacking

Started Apr 8, 2013 | Discussions thread
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Duncan C OP Veteran Member • Posts: 7,661
Re: Macro Focus Stacking

John4 wrote:

I've recently been toying with doing the same thing.  However it seems as if there is another factor which should be considered.  As you change the focus, you are also changing the magnification.

Is this a real problem or only an imagined one?  Do Helicon or CS6 correct for this?

John

John,

Both focus changes and position changes cause changes in the image size.

PS has an "auto-align layers" step that adjusts for that. If you keep everything else constant, it seems to do an excellent job of correcting for image size changes, as well as exposure changes between shots.

Dunno specifics about the other solutions out there like Helicon Focus, but they would have to handle image size changes and small movements in order to be useful.

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