The updated Fujifilm firmware enhances compatibility of X-A1, X-A2, X-E1, X-M1 & X-Pro1 camera bodies with XF100-400mmF4.5-5.6 R LM OIS WR lens. Besides X-Pro2 gets improvement in image quality.
Firmware for Interchangeable Lens Camera Body
| Model Name | Version | Description | Link | Updated |
| X-A1 | Ver.1.40 | Supports focus limiter function for XF100-400mmF4.5-5.6 R LM OIS WR. | Download | Mar 31 2016 |
| X-A2 | Ver.1.20 | Supports focus limiter function for XF100-400mmF4.5-5.6 R LM OIS WR. | Download
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Mar 31 2016 |
| X-E1 | Ver.2.60 | Supports focus limiter function for XF100-400mmF4.5-5.6 R LM OIS WR. | Download
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Mar 31 2016 |
| X-M1 | Ver.1.40 | Supports focus limiter function for XF100-400mmF4.5-5.6 R LM OIS WR. | Download | Mar 31 2016 |
| X-Pro1 | Ver.3.60 | Supports focus limiter function for XF100-400mmF4.5-5.6 R LM OIS WR. | Download
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Mar 31 2016 |
| X-Pro2 | Ver.1.01 | Fix of auto reset to the factory default setting.
Improvement of image quality of the long exposure mode. |
Download | Mar 24 2016 |
Firmware for Interchangeable Lens
| Model Name | Version | Description | Link | Updated |
| XF50-140mmF2.8 R LM OIS WR | Ver.1.11 | Improvement of AF function used with X-Pro1 and X-E1 | Download | Mar 31 2016 |
| XF100-400mmF4.5-5.6 R LM OIS WR | Ver.1.01 | Improvement of AF function used with X-Pro1 and X-E1 | Download
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Mar 31 2016 |