New X-t2 firmware 4.20

Testing my 16mm f/1.4 I'm finding the AF to be where it should have been. The AF seems much more responsive now The new firmware does appear to be quite aggressive in hammering the AF motor.

My 56mm sound like it chatters equivalent to an older generation Canon nifty 50 f/1.8. You can feel the fast movement of the AF. I know the speed of the AF is very welcoming but the AF feels incredibly unrefined using the 56mm.

http://www.alanuyenoph​otography.com …01554/hB1954224​#hb1954224

Not hammering the AF just moving it faster, your audiophile ears should understand the difference between frequency and amplitude, and also how they relate.


"Really? Mine sounds just like all the other Fuji lenses that don't use a linear motor [the LM in the title], both on the X-T2 with FW4.2 and on the X-PRO2 with FW5. My 56/1.2 grabs focus fine, locks on with plenty of confidence and NO chattering for me. Sounds just like using the 56/1.2 on an X-T1 only the focus is quicker."

Two Hot Shoes wrote in post #18667009
Not hammering the AF just moving it faster, your audiophile ears should understand the difference between frequency and amplitude, and also how they relate.


"Really? Mine sounds just like all the other Fuji lenses that don't use a linear motor [the LM in the title], both on the X-T2 with FW4.2 and on the X-PRO2 with FW5. My 56/1.2 grabs focus fine, locks on with plenty of confidence and NO chattering for me. Sounds just like using the 56/1.2 on an X-T1 only the focus is quicker."

This.

Two Hot Shoes wrote in post #18667009
Not hammering the AF just moving it faster, your audiophile ears should understand the difference between frequency and amplitude, and also how they relate.


"Really? Mine sounds just like all the other Fuji lenses that don't use a linear motor [the LM in the title], both on the X-T2 with FW4.2 and on the X-PRO2 with FW5. My 56/1.2 grabs focus fine, locks on with plenty of confidence and NO chattering for me. Sounds just like using the 56/1.2 on an X-T1 only the focus is quicker."

For discussion sake amplitude and frequency is just technical terms. The chatter of Auto focus acquisition is purely audible noise that is far from refined. At least AF seems faster so this is a great bonus for the fuji autofocus system.

Yes two technical words that can discribe why that sound is there, it always sounded like that only now it happens faster. That lens uses a stepping motor not a linear motor.

i thought 4.2 was only adding the create folder thing. Didnt see it mention anything about AF change.

05Xrunner wrote in post #18668678
i thought 4.2 was only adding the create folder thing. Didnt see it mention anything about AF change.

FW4.2
Enhanced Phase Detection AF
Latest updates to the AF algorithm provide the following performance enhancements :
1) The low-light limit for phase detection autofocus has been improved by approximately 1.5 stops from 0.5EV to -1.0EV, raising the precision and speed of autofocus in low-light environments.
2) The range at minimum aperture has been expanded from F8 to F11. For example, even when using the XF100-400mmF4.5-5.6 R LM OIS WR with the tele converter XF2X TC WR, phase detection autofocus can now be used.
3) Major improvements have been made to the AF-C performance while operating the zoom, which provides major benefits when shooting sports and other scenarios in which the subjects moves unpredictably.
4) Finely-detailed surface textures of wild birds and wild animals can now be captured at high speed and with high precision as a result of improvement in phase detection autofocus.

So it can use PDAF in darker light and the continuous focus mode has changed

well I guess I will be applying 4.2 when I get home
I was going to skip it because I thought it was just adding the Create folder

Oh do it's a nice little list of additions, as usual.


1. Addition of “Focus Bracketing”
The update will enable the photographer to shoot focus distance bracketing up to 999 frames. When the photographer starts shooting, the focal location is shifted with each activation of the shutter by the step of focus shift set from 1 to 10.

2. Compatible with the newly developed cinema lens FUJINON MKX18-55mmT2.9 lens and FUJINON MKX50-135mmT2.9 lens
The upgrade will add compatibility for the newly developed FUJINON MKX18-55mmT2.9 lens and FUJINON MKX50-135mmT2.9 lens
1) Aperture information can be displayed on the monitor. The upgrade allows users to select T-stop or F-stop.
2) The upgrade allows users to check the focus distance with the distance indicator shown on the monitor.
3) Automatically corrects the distortion and the color/brightness shading.
4) Camera automatically calculate the White Balance based on the lens position and deliver the color expressions with Film Simulation modes

3. Enlarged and customizable indicators or information
The upgrade allows users to enlarge indicators and information in the viewfinder and/or LCD monitor. This upgrade will also enable users to customize the location of where the information is shown on the display.

4. Addition of F-log SD card recording
The upgrade allows users to record F-log movie data into their SD card.

5. Addition of 1080/120P high-speed video mode
The upgrade allows users to shoot 1080/120P high-speed video (1/2, 1/4 and 1/5 speed slow motion), ideal for recording spectacular slow-motion footage

6. Enhanced Phase Detection AF
Latest updates to the AF algorithm provide the following performance enhancements :
1) The low-light limit for phase detection autofocus has been improved by approximately 1.5 stops from 0.5EV to -1.0EV, raising the precision and speed of autofocus in low-light environments.
2) The range at minimum aperture has been expanded from F8 to F11. For example, even when using the XF100-400mmF4.5-5.6 R LM OIS WR with the tele converter XF2X TC WR, phase detection autofocus can now be used.
3) Major improvements have been made to the AF-C performance while operating the zoom, which provides major benefits when shooting sports and other scenarios in which the subjects moves unpredictably.
4) Finely-detailed surface textures of wild birds and wild animals can now be captured at high speed and with high precision as a result of improvement in phase detection autofocus.

7. Addition of “Flicker Reduction”
For enhancing the quality of indoor sports photography, the upgrade allows users to reduce flicker in pictures and the display when shooting under fluorescent lighting and other similar light sources.

8. New functions are added to store and read of camera settings by FUJIFILM X Acquire
Once connecting a camera to a computer via USB cable, the “FUJIFILM X Acquire” allows users to backup/restore camera settings to/from a file. With “FUJIFILM X Acquire” (ver.1.7 or newer), CUSTOM REGISTRATION/EDIT settings are also stored and read.

9. The problems below occurred in Ver.4.00 are fixed.
1) When RAW files, which were taken by X-T2 (before firmware ver.4.00), are converted in camera (ver.4.00) or by “FUJIFILM X RAW STUDIO”, they are not converted properly.
2) When pressing the shutter button halfway under certain conditions, the live view can flicker.
3) In rare cases, a hang-up can occur in HC mode and so on.

wait most of that stuff was in version 4.1 that I have on my camera already

05Xrunner wrote in post #18668734
wait most of that stuff was in version 4.1 that I have on my camera already

If i recall correctly it was causing issues for many

Thats quite an update for a camera thats been out for 2(?) Years now.. and a camera thats recieved much praise as it was

that was version 4.00 that caused issues.
version 4.1 was the fix for version 4 that added all these features. they had to roll back. Then the fix of 4.1 came out a few weeks ago and added all these features back that 4.00 added

Here is the PDF from Fuji regarding FW4.2

yea thats the one I read. the only update its saying 4.2 adds over 4.1
is the select folder save data setting. All those other updates are part of 4.1 that was released a few weeks ago to fix the version 4.00 they originally released at but had some issues.

So basically I get a new camera every update, gotta love Fuji.