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Fujifilm GFX100 Phase Detection Pixel Banding and Pixel Shift Multishot Solution

the black line in the center part has been manually added by Bill from Photons to Photos

the black line in the center part has been manually added by Bill from Photons to Photos

Fujifilm GFX100

For years, mirrorless cameras lagged behing DSLRs in terms of autofocus speed.

In order to catch up, companies started to incorporate phase detection pixels on their sensors, and modern cameras have phase detection pixels spread all over the sensors, very much to the delight of photographers, who enjoy fast autofoucs, eye autofocus all over the frame and reliable subject tracking.

But no technology is perfect, and so also phase detection has its downside.

When pushed to the extreme (meaning extreme shadow recovery for example), sensors with phase detection pixels can show some banding.

This has been documented with Nikon, Sony and so forth, and of course Fujifilm is no exception. They all use the same Sony sensor at the end of the day :).

It looks like also the Fujifilm GFX100 is (unsurprisingly) showing the same banding issue, when its RAW files are pushed to the extreme.

In fact, the Fujifilm GFX100 sensor has

  • a total of 3.78 million phase detection pixels
  • 7,776 PDAF pixels every 18 lines

The more phase detection pixels a sensor has, the more you can use phase detection also in lower light.

Bill Claff from Photons to Photos has published a Fujifilm GFX100 sensor heatmap (via dpreview), showing a short black line every 18 rows (see image above).

Should we panic?

I guess not. Or we could just throw any modern mirrorless camera into the garbage that uses phase detection pixels (unless it’s X-Trans ;) ).

It’s, as always, a tradeoff.

Do you want faster autofocus? Or do you want RAW files that even when pushed to its limits and beyond don’t show banding?

The Solution

First off: Fujifilm is fine tuning the firmware for the Fujifilm GFX100, and of course they are aware of banding. They are working to optimize sensor readout and the final firmware will show, how much banding the camera will really have.

But in any case, there is partially a solution to that, even without optimized and final firmware.

As I told you already months ago, Fujifilm is working to bring pixel shift multishot into the Fujifilm GFX100.

The original goal was to have it ready for GFX100 launch, but it needs a bit more time of development.

But pixel shift mulitshot will come, and as we have seen from other phase detection mirrorless cameras offering this feature, pixel shift reduces or even eliminates banding completely.

So, as long as you are shooting static subjects on a tripod and use pixel shift multishot, you won’t have any issues with banding.

Fujifilm GFX 100: B&H Photo, AmazonUS, Adorama, Focuscamera

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Full set of "false color" images where the colors are just used to help show structure as opposed to randomness.

Full set of “false color” images where the colors are just used to help show structure as opposed to randomness.

Fujifilm GFX100 vs Phase One and Technical Analysis with Eye AF, IBIS Performance, AF Accuracy and More

Here is another major Fujifilm GFX100 roundup, focussed on Matt Granger’s GFX100 comparison with the Phase One and Jim Kasson’s excellent ongoing technical analysis of the Fujifilm GFX100 virtues and shortcomings.

Check it out all down below.

Fujifilm GFX 100: B&H Photo, AmazonUS, Adorama

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Fujifilm GFX100 vs Phase One

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DPReview Fujifilm GFX100 Review: “Image Quality? Sensational! The Best We Have Ever Reviewed. Outperforms FULL FRAME”

Fujifilm GFX100

DPReview published their full Fujifilm GFX100 review.

It’s not a perfect camera, but from the image quality point of view, it is simply the best camera DPReview has ever tested.

Senior editor Barney Britton says:

The GFX 100 is the first medium format camera I’ve ever used – film or digital – which doesn’t feel like a compromise. In almost all respects, the GFX 100 handles like a professional DSLR, but with all of the benefits of mirrorless, plus excellent 4K video capabilities and the unimpeachable image quality offered by a cutting-edge sensor. It’s not perfect, and it’s not cheap, but if I was a working professional photographer I’d buy a GFX 100 in a heartbeat.

Compared to other high resolution cameras:

Having said that the GFX 100 significantly outperforms full frame cameras, we should still consider the Panasonic Lumix DC-S1R, since it’s able to shoot and combine multiple shots in order to offer resolution and light capture (and hence tonal quality) comparable to a larger sensor. But, while it does so in a smaller, lighter body and doesn’t have any phase detection elements to limit its usable dynamic range, its multi-shot mode only gets its best results when tripod-mounted, and applied to static subjects (and its use of electronic shutter limits its use with strobes). For most high-res applications, the GFX is the simpler, stronger, and yes, more expensive option. […]

 If you need the quality it brings, the Phase One will outperform the Fujifilm, but if you can put up with the (sensational) image quality of the Fujifilm, then its smaller size, image stabilization, increased battery life, attractive JPEGs and video capabilities make it a much more flexible tool for considerably less money.

You can read the full review at DPReview here.

Fujifilm GFX 100: B&H Photo, AmazonUS, Adorama, Focuscamera

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What we like What we don’t
  • Stunning images in terms of both resolution and tonal quality
  • Image stabilization makes it easier to get full benefit of 100MP resolution
  • GF lenses live up to the resolution demands
  • Autofocus is swift and accurate by medium format standards
  • Impressive video quality and specifications
  • Viewfinder is highly detailed and compatible with existing tilt/articulation accessory
  • Twin batteries give solid ‘in the field’ endurance
  • Chargeable/operable over USB
  • Control dials feel small and cheap
  • Autofocus performance isn’t impressive compared to smaller format cameras
  • Portrait orientation grip is slim and slippery
  • Portrait orientation controls don’t mimic normal orientation layout
  • On-sensor AF causes banding, slightly limiting usable dynamic range
  • We found it hard to find a dial setup that worked smoothly

Fujifilm GFX100 Technical Analysis, Reviews, Opinions and Going 100 Megapixel Macro

Jim Kasson has started his extensive and very technical Fujifilm GFX100 coverage, and it is definitely worth to check out.

He overserves some banding here.

Down below you find all the links:

  • blog.kasson – GFX 100 read noise spectral analysis
  • blog.kasson – GFX 100 extended dynamic range
  • blog.kasson – GFX 100 extended dynamic range vs ISO
  • blog.kasson – Fuji GFX 100 extended dynamic range vs shutter speed
  • blog.kasson – Fuji GFX 100 photon transfer curves
  • blog.kasson – Fuji GFX 100 light-field pattern noise
  • blog.kasson – Fuji GFX 100 dark-field pattern noise

And here are a few more GFX100 tidbits:

  • madsbjerke – Fujifilm GFX-100 Macro
  • henrysmithscottage – Looking back on Fujifilm at the introduction of the GFX 100 (opinion piece, no hands on experience)
  • thephoblographer – Review: Fujifilm GFX 100 (A Revolution in High Megapixel Imaging)

Fujifilm GFX 100: B&H Photo, AmazonUS, Adorama, Focuscamera

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Fujifilm GFX100 Customer Reviews: “100 MP is Phenomenal, if You can Afford it, Get it”

images shared by Richard Ng at our Fujifilm GFX group - link below

images shared by Richard Ng at our Fujifilm GFX group – link below

Fujifilm GFX100

The Fujifilm GFX100 is experiencing a shipping shortage, but there are some, who are lucky enough to already have one in their hands.

If seems like all Fujifilm GFX100 owners are also members of our galactic Fujifilm GFX group. So here is some of the feedback they shared there.

Fujifilm GFX 100: B&H Photo, AmazonUS, Adorama, Focuscamera
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Fujiflm GX100 Reviews

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Fujifilm X-T30 Beats Sony a6400 in Autofocus Stills Tracking, but Sony A6400 Better for Video and Vice Versa

Fujifilm X-T30 vs Sony A6400 – Part 1

Gerald Undone has often critiqued Fujifilm quite hard and never recommended to buy Fujifilm, except for the Fujiflim X-T3. He now reviewed the Fujifilm X-T30 and compares it to the Sony A6400.

Interesting to note that he gets better autofocus tracking results in stills with the Fujifilm X-T30 over the Sony a6400. But the a6400 is the better choice for video autofocus.

Down below are the key points of his comparison.

DEAL ALERT: Today only you can save up to 30% on selected SanDisk SD-card at BHphoto here.

Fujifilm X-T30 Review

  • less video features than Fujifilm X-T3
  • overheats much faster than X-T3 in video, hence shorter recording limit
  • X-T30 is a serious upgrade from X-T20
  • Mic/USB-C/HDMI ports are to close together. If you use one, you block access to the other. You don’t have this problem with Fujifilm X-T3
  • X-T30 battery life lasts 65 minutes when shooting 4K. You can 90 minutes when shooting 1080p
  • When used with external video recorder, the camera shuts down due to overheating after 31 minutes
  • to extend video-life up, turn boost mode off (it affects mainly brightness and EVF refresh rate), pull the LCD screen away from body, mount it on tripod (no hand-holding), less AF-C. He got up to 69 minutes recording this way
  • X-T3 is definitely worth the money if you shoot lots of video. But for shorter family/travel videos, the X-T30 is great

X-T30 Pros

  • Sony lenses tend to be a bit larger, hence X-T30 system is smaller
  • in video the X-T30 has higher bit rate (200 Mbps) whereas the A6400 shoots at 100 Mbps. But higher bit rate does not mean automatically better image quality

A6400 Pros

  • Sony A6400 tripod mount does not block access to battery door
  • A6400 has a better screen design (flippy selfie screen)
  • A6400 lasts longer when it comes to overheating and with high temperature setting enabled, it can last for hours
  • no recording time limits, so no external recorder required
  • true 120 fps at 1080p
  • 3.5 mic jack (X-T20 has 2.5mm mic jack)
  • Sony wins for overall video recording usability
  • battery life is similar, but Sony is a little bit better (around 10 to 15 minutes longer recording time and 50 more stills)
  • A6400 Sony’s RAW buffer is about twice at large

Autofocus in Video

  • for Video, the Sony wins by a little bit
  • X-T30 offers eye detection in video (the Sony A6400 only face detection), but the X-T30 is just a tad slower to catch up to a subject when moving in and out from the camera. The Sony manages to maintain the focus better
  • Both are great, but side by side, you can see the X-T30 autofocus drift a little
  • You can improve this on the X-T30, by increasing autofocus speed, but then it makes focus transition a bit too jumpy. The Sony has a nice balance of offering nice transitions while still locking on the face

Autofocus in Stills

  • in burst photo shooting continuous focus, the Fujifilm X-T30 beats the Sony A6400. The Fujifilm X-T30 hit a 100% hit rate in his test, whereas the Sony A6400, even with more expensive full frame glass, hit about 80%. The X-T30 consistently nails focus

NOTE: the Fujifilm X-T3 will get the same new AF algorithm in a firmware update in April. This means Tony Northrup’ eye-AF comparison between the Fujifilm X-T3 vs Sony A6400, Sony A6500, Sony A9 and Sony A7rIII will be obsolete soon and I hope he will retest it.

Noise and Image Quality

  • likely due to the lens he used, he got sharper results with the Sony A6400. He used the Sigma f/1.4 contemporary crop lens vs the Fujinon XF23mm f/2 [admin note: he uses Adobe, too. If he played with the RAW files, then Capture One Pro 12 or the new Adobe enhance detail feature would have given different results]
  • Fuji is 1 stop noisier, when equalizing the image brightness [admin note: comment about it below]

Conclusions

  • He recommends the Sony A6400 due to more flexibility: selfie screen, better battery life, better video capabilities, deeper grip etc.
  • X-T30 might be the better travel camera, since more compact

Fujifilm X-T30 vs Sony A6400 – Part 2

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Fujifilm X-T3 vs Sony A7III Comparisons Roundup: “I Got Rid of my Sony A7III and I Urge Evey Sony Shooter to Try Fujifilm X-T3”

Fujifilm X-T3 vs Sony A7III

There are so many reviews out there about the Fujifilm X-T3, and, inevitably, many also comare it to the Sony A7III. So today’s Fujifilm X-T3 roundup is dedicated to comparisons with the Sony A7III.

Fujifilm X-T3: BHphoto, AmazonUS, Adorama, Focuscamera

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Fuji X-T3 vs Sony A7III Comparison NR.1

Let’s start with Venture Arthouse (video above), and the reasons why he got rid of his Sony A7III and Sony A6500 for the Fujifilm X-T3. Here are some keypoints:

** CLICK HERE to Read the Rest of the Article **

DPReview Declares Fujifilm X-T3 Best Consumer Stills/Video Camera 2018 and Fujifilm GFX50R Runner-Up High-End ILC

Fujifilm X-T3

The Fujifilm X-T3 has been highly praised by all top review blogs and youtube channels out there. And if you take a look at the Fujifilm X-T3 customer reviews at AmazonUS you will also find overwhelmingly enthusiastic feedback.

Yes, the Fuji X-T3 a fantastic allrounder.

And now, after winning three categories in the DPReview buying guides, the DPReview team declared the Fujifilm X-T3 the best consumer stills/video camera of 2018, beating illustrious competitors like the Sony A7III, Fujifilm X-H1 and Nikon Z6.

DPReview writes:

At first glance very similar to its direct predecessor the X-T2, this year’s model is in fact a major upgrade, offering a substantially improved set of video and stills features. In fact, despite its lack of IBIS, the 4K/60-capable X-T3 is arguably a better 4K video platform than the nominal video flagship of the X-series, the X-H1. Its ability to capture 4K/60p footage in 10-bit even puts it ahead of the latest models in Panasonic’s video-centric GH series.

All of this is made more impressive by the fact that until quite recently, Fujifilm’s X-series lagged seriously behind its competition in terms of video. The X-T3 is the clearest indication yet that Fujifilm has well and truly joined the game.”

The Sony A7III, though, beats the Fujifilm X-T3 in the “Best midrange ILC” category, with the Fujifilm X-T3 grabbing the second spot, beating the Canon EOS R and Nikon Z6.

DPReview also nominated the Sony A7III best product of 2018, with the Fujifilm X-T3 runner up. They write:

Picking the single best product of the year is always a difficult task, and if we’re being honest, it’s impossible. Everyone’s needs are different. There has never been a better time to be a photographer, and in 2018 there are fantastic cameras, lenses and accessories out there for everyone.

But pick we must. This year’s shortlist is comprised of those products that represent, in our collective opinion, four of the best bits of gear released in 2018. Two of them really stood out, though. Runner-up is the Fujifilm X-T3 which – in case you didn’t already get the message – we really like. Fujifilm didn’t need to make the X-T3 as good as it is – hell, Fujifilm didn’t even need to replace the X-T2 yet – but they did, and they did. And the resulting camera is one of the best APS-C format ILCs money can buy, even rivaling some full-frame models.”

Compared to the Sony A7III, the Fujifilm X-T3 offers better weather sealing, less rolling shutter, less banding in electronic shutter mode, superior video specs, better EVF, better colors, dual UHS-II SD-card slot, video eye-tracking, blackout-less EVF at 30 fps and more for a cheaper price.

But, well, the Fujifilm X-T3 is not “full frame“, and these two little words just make the difference, probably more in our minds, than in real life shooting. But hey, that’s it. Now let’s talk medium format :).

Fujifilm X-T3: BHphoto, AmazonUS, Adorama, Focuscamera

Fujifilm GFX50R

When it comes to the best high-end ILC category, the Nikon Z7 wins and the Fujifilm GFX50R takes the second spot, beating the Panasonic GH5s and Panasonic G9.

This year’s runner-up spot is taken by the camera with the biggest sensor of all – the Fujifilm GFX 50R. Designed for active photographers, the 50R takes the best bits of the more costly 50S – including its most important feature – the excellent 50MP CMOS sensor – and packages them in a smaller, more affordable, rangefinder-style body. Medium-format has never looked more attractive.”

You can read the full list of 2018 DPReview awards at dpreview here.

Fujifilm GFX 50R: BHphoto, Adorama, AmazonUS, FocusCamera

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Imagine FUJIFILM would go FULL FRAME Tomorrow Morning…

If Fujifilm Would go Full Frame….

So, top Fujifilm manager Toshi Ilda said it clearly here: “We will NEVER go Full Frame!”

NOTE: this is not an article against full frame. I just try to put myself in Fujifilm’s shoes and see what it would mean for them to go full frame.

Now, apart from the fact that I 100% agree with what CanonWatch said:

Never say never, even if you’re making the best APS-C mirrorless cameras on the market

Remember when Fujifilm said they will never be able to offer IBIS on Fuji X Mount cameras?

Anyway, Fuji says. there won’t be any full frame camera, and according to this huge FujiRumors poll, most of you guys agree with Mr. Toshi.

But imagine…

Imagine Fujifilm would go full frame tomorrow morning.

Mostly due to the slower full frame sensor readout compared to APS-C (as listed in our advantages of APS-C over Full Frame), it would be a Full Frame Fujifilm that:

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Fujifilm X-T3 vs Sony A7III, A7rIII and A6500, Everything Wrong with the X-T3, High ISO and Lab Tests & More

Fujifilm X-T3

We did share a dedicated Fujifilm X-H1 roundup earlier today. Don’t miss it. But of course there is lots of stuff about the X-T3 been shared in these days. So here is the next Fujifilm X-T3 roundup.

Fujifilm X-T3 (save $130 w/grip): BHphoto, AmazonUS, Adorama, Focuscamera

News, Rumors and Community
Fujifilm X-T facebook group
Fujifilm X-T facebook page

Fujifilm X-T3 vs Sony A7III

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