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Fujifilm GF 50mm f/3.5: Distortion Correction Degrades Crispness Noticeably

2022-02-22 - SEND FEEDBACK

Related: distortion, distortion correction, Fujifilm, Fujifilm GF 50mm f/3.5 R LM WR, Fujifilm GFX100, Fujifilm Lenses, Fujifilm medium format, Fujifilm mirrorless, medium format, optics

With my Fujifilm GFX100S arriving tomorrow, and the Fujifilm GF 35-70mm f/4.5-5.6 soon, I took a look at its distortion characteristis using some sample files I found. My concern was how much distortion at what focal lengths, and how much is lost by correcting it. This prompted me to document a very low distortion lens, the Fujifilm GF 50mm f/3.5.

I had assumed that the low level of barrel distortion with the Fujifilm GF 50mm f/3.5 meant that distortion correction had minimal impact. That assumption proved incorrect.

These examples show distortion-corrected vs uncorrected images for the Fujifilm GF 50mm f/3.5 R LM WR:

Distortion and Distortion Correction for Fujifilm GF 50mm f/3.5

Includes two examples showing corrected versus uncorrected, with crops.

f8 @ 1.0 sec, ISO 100; 2020-03-27 06:34:30
Fujifilm GFX100S + Fujifilm GF 50mm f/3.5 R LM WR @ 41.1mm equiv (50mm) RAW: vignetting corrected

[low-res image for bot]

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