Did FW 4 really improve the AF speed and accuracy of your Fujinon lenses?

Some say the improvement is remarkable, some say it’s minimal and some can’t see any change in AF-speed and/or accuracy in good or low light. The feedback is very different (just check out the various X-T1 FW 4 threads here). Moreover, the perceived AF-improvement varies a lot according to the lens you use.

So who is right? Placebo or real improvement? There is one thing FujiRumors can do: put all your feedback into a Poll!

I decided to invest a bit of my time in my holiday on the sea with my buddy (while his kid is finally (!) sleeping ;) ) to launch a Poll for each lens. So, if you own one of these lenses, and tested FW 4 on it, you can let us know if you see an overall AF improvement. Just pick out an option of the poll.

Sure, this isn’t a scientific way to test an eventual AF-improvement, but since FujiRumors is the largest Fuji X related website, we can quickly collect the opinion of hundreds (thousands?) of X-shooters, who tested the lenses in the most different situations, and see what the majority of you think about FW 4.

Of course, I’ll take it for granted, that you’ve checked out the list of tips that helps you to make the best out of Firmware 4 here. and tested the AF-speed/accuracy with the right settings.

happy voting :),
Fuji X Forum, Facebook, Google+, RSS-feed and Twitter

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Click READ MORE to drop your vote on the other Lenses

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TOP FXF THREADS TOC

– Episode 5: The New Leica Q :: Firmware 4.0 Beta :: Fuji X Wedding Photography Chat :: LR 6.1 & more! Top FXF threads
– Episode 4: POLL: No In Body Image Stabilization, do you bother? :: Old Lenses For Dummies + more
– Episode 3: Which 3 primes combo is your ideal setup? :: X-PRO2 wishlist :: Be careful with thumb grips :: Sensor dust & more
– Episode 2: CLASH of the FUJIS: X-PRO2 Vs. X-T2 :: X-T1 Vs. X-T10 :: 14mm Vs. 10-24 :: 16mm Vs. 23mm :: 90mm Vs. 56 APD & more
– Episode 1: Why do (some) People Hate Fuji? * Mock-Up X-T10 Vs. Real X-T10 (with XF 35mmF2 WR) * X Lens wishlist & more *

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General Discussion

– started by milandro: “why do all digital fuji X cameras need to have the “sound on” to use the flash?” Discussion here.

– started by Vaquero Photo: “Five Things Fuji is doing horribly wrong“. Really?.

– started by abjurina: “Why JPEG files are suddenly good enough for me” Do you feel the same way?

– started by andrew brown: “Big Hands“. The trend to smaller cameras is not always a good one. Read more here.

Fuji X System

X-T1 / X-T10

– started by bryrene: “Fuji X-T1/ XT-10 Focusing Speed and Accuracy in Low Light Situation (Firmware 4)” Your feedback is appreciated here.

– started by Patrick FR: “Firmwaree 4.0: First Impressions”. Read more here.

– started by andrzejbe: “long travel combo advice – X-T10 or X-T1?” Your suggestion is appreciated here.

– started by Noah: “Serious Firmware 4.0 issue – Chromatic Aberration” Do you experience it, too?

– started by absolutic:”Firmware 4 Face Recognition Feature is not accurate: re Eye Selection […] Couple of people contacted me that the new Face Recog in FW4 is not accurate in that when you pick ‘auto’ eye, while it supposed to focus on a closest eye, it picks the other eye“. Does it happen also with your X-T1 FW 4?

Fuji X Lenses

– started by milandro: “The humble (though honorable) XC 50-230mm“. A tribute to this lens.

– started by dv.: “FX 60mm 2.4 Macro“. Open Thread… it’s all about 60mm shots

RAW PROCESSING

– started by marcelo_valente: “Share Your Workflow – There are many ways we can go about selecting, archiving, saving and sharing our images, so, how do you do it. Let me share mine.” And what about your workflow?

ACCESSORIES

– started by Patrick FR: “RUMOR: Fuji X Flash delayed because of Metz insolvency!”. Now Fuji needs a new Partner… whom would you like?

IMAGES

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The Fujifilm Blog published an interview with Fuji Manager Mr. Takashi Ueno. Here are some excerpts.

“Full frame body + High performance lens” can be achieved with “Small APS-C body + High performance lens”

Mr. Takashi Ueno “We gave a lot of thought to this, and reached our conclusion that APS-C is the best format for the optimum balance of body size and image quality. […] Higher image quality can be achieved with full frame sensors, but in order to maximize the use of the sensor size, the lens will be very bulky and heavy.

[…] if you attach the large and heavy high performance lens to the full frame DSLR, then you will certainly get high image quality. The combination will maximize the potential of the full frame, but if you have to carry the bulky lens everywhere to achieve the high image quality, then this is not what FUJIFILM is aiming for.

Question: “OK, Smaller and lightweight body can be achieved with APS-C but how about the “High image quality” part?”

Mr. Takashi Ueno “The technology of the FUJINON lens has a lot to do with that. With the power of FUJINON lens, we can achieve the full frame image quality with the APS-C sensor. […] We learned that the disadvantage can be recovered with the lens performance through various simulations.

Here is an example. It is generally believed that the lens performs at its best with 1 to 2 stop down from the maximum aperture. We tried to break the norm. Because if there is such belief, then the lens is very unlikely to perform at its best from corner to corner with the aperture wide open. But if we can break the norm, then we will achieve bokeh and sharpness that is equivalent to that of a full frame with 1 to 2 stop down. We can achieve the image quality that is equivalent to that of full frame.

Which is better? An f/1.4 lens on a full frame sensor and then used 1 stop down to prevent degradation in the image quality in the corner or an f/1.4 lens on an APS-C that see no degration in the image quality at its maximum aperture value?

You cannot really see the difference in bokeh between the APS-C wide open and the full frame one stop down. However, if the APS-C is wide open, then the shutter speed will be twice as fast as the full frame resulting in be less blur caused by hand shake or subject movement. If the picture becomes blurry, then the high image quality becomes meaningless.”

X-TRANS

Through various simulation, we learned that the 16M X-Trans sensor had the potential to rival the resolution of a 24M bayer sensor. [admin: confirmed by dpreview tests].

The combination of FUJIFILM color reproduction, the X-Trans sensor, and the FUJINON lens technology, allowed us to create an interchangeable lens camera that could rival the image quality of full frame D-SLR in the APS-C format.

If we make a cheap low performing lens, then the degradation in image quality is more apparent for the X-Trans sensor than a typical sensor. X-Trans sensor requires high performance lens.

Read the whole interview at the fujifilm-blog here

Good move Fujifilm… better to go directly Medium Format… we already have a pretty solid rumor about it here ;)