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Problem with auto focus on XF 50-140mm 2.8

jufoso

By jufoso
in Fuji X Lenses

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jufoso Newbie

jufoso

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Posted (edited)

Hi guys, new Fuji-freak here!

I bought yesterday X-T3 with the 18-55 lens and XF 50-140mm f2.8, both used.

At first I was really impressed with both of them but soon I figured out that there's something strange with the 50-140 and autofocus. The problem occurs at the maximum 140mm focal lenght. The autofocus can't focus near. It will only work for longer distances (over 4-5 meters) even though the minimum focus distance should be 1 meter. Even a slight zoom out e.g. 138mm will make the autofocus work normally.

All the settings are in "auto", I'm shooting in single shot mode and autofocus on single point. The problem occurs in every possible setup. Here's a video about the problem (I didn't find my stand so I had to use chair) [ignore the cat meowing] https://youtu.be/g8snv-60DBM

Has anyone else had the same problem or should I return the lens?

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  • 2 years later...
Leicht Newbie

Leicht

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On 2/15/2020 at 11:03 AM, jufoso said:

Hi guys, new Fuji-freak here!

I bought yesterday X-T3 with the 18-55 lens and XF 50-140mm f2.8, both used.

At first I was really impressed with both of them but soon I figured out that there's something strange with the 50-140 and autofocus. The problem occurs at the maximum 140mm focal lenght. The autofocus can't focus near. It will only work for longer distances (over 4-5 meters) even though the minimum focus distance should be 1 meter. Even a slight zoom out e.g. 138mm will make the autofocus work normally.

All the settings are in "auto", I'm shooting in single shot mode and autofocus on single point. The problem occurs in every possible setup. Here's a video about the problem (I didn't find my stand so I had to use chair) [ignore the cat meowing] https://youtu.be/g8snv-60DBM

Has anyone else had the same problem or should I return the lens?

Hey,

So the YouTube video is no longer available. However, I do have a simular issue with ny 50-140 lens at 140mm. In Manual focus, during video recording, it seems the focus is sort of pulsing at times which can ruin that part of a video. I am not sure what causes the issue but, I have reached out to Fuji in hopes they can help. I will try to remember to update here if/when I hear back!

 

Did you by chance solve you issue @jufoso?

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  • 3 months later...
William_H Newbie

William_H

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On 6/12/2022 at 9:31 AM, Leicht said:

Hey,

So the YouTube video is no longer available. However, I do have a simular issue with ny 50-140 lens at 140mm. In Manual focus, during video recording, it seems the focus is sort of pulsing at times which can ruin that part of a video. I am not sure what causes the issue but, I have reached out to Fuji in hopes they can help. I will try to remember to update here if/when I hear back!

 

Did you by chance solve you issue @jufoso?

I have the same problem. Did you find and solution? @Leicht

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