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EXCERPT page containing first few paragraphs. 2023-12-05 04:54:04

Fujifilm GFX100 II
Fujifilm GF 55mm f/1.7

Fujifilm GF 55/1.7: Focus Breathing

Focus breathing refers to the change in magnification as the focusing distance changes. Such changes are highly undesirable for video usage, and terrible for focus stacking.

Example: Picnic Table

The Fujifilm GF 55mm f/1.7 shows a ridiculous amount of focus breathing which results in a substantial loss of field of view in the stacked image. It also means a reduction in sharpness, because the stacking software must stretch pixels to match-up across frames much more than would otherwise be needed. The whole thing is ridiculous.

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Variants f01,f02,f03,f04,f05,f06,f07,f08,f09,f10,f11,f12,Stack22 available in full article

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