*Please also check your spam folder if you don't get the confirmation mail. A Fuji filter is composed of 3x3 matrices with four green cells in … Is it real detail or just aliasing and false color? The preceding tests were conducted with images containing essentially no noise. The Fuji has a different architecture when it comes to pixel arrangement (called X-Trans) that guarantees the presence of at least one red, blue and green pixel on every line. Why? Unlike most CMOS sensors featuring a conventional Bayer filter array, X-Trans sensors have a unique 6 by 6 pattern of photosites. If we compare it to the A7 III, the Fuji is larger but lighter. Yes, it’s there, and not only with X-Trans III cameras but also with all other Fuji X cameras. JAI cameras 3,688 views. Here Fujifilm elaborates on the claim that APS-C X-Trans can match the performance of full-frame (presumably higher resolution as stated above) Bayer: The FUJIFILM X-M1 is equipped with a large APS-C X-Trans CMOS Sensor, which offers picture quality comparable to that of full-frame sensors. And to a lesser extent when photographing subjects which contain no patterning and no high contrast fine detail (i.e. The Bayer CFA is common and very well established. I personally prefer the X-Trans sensor/processor rendering of the image, since the Bayer/processor combo looks too plasticky. However, there’s a problem: we could have done just the same kind of filtering with Bayer (or any other CFA)! The synthetic raw images are generated by filtering the target images through the respective CFA patterns. I love this new Bayer sensor from Fuji. If you compare a Fujifilm camera to another brand of camera without accounting for these various factors, you may think the Fujifilm performs better in every regard. One of the main issue Fujifilm users are facing, is the compatibility of the RAW files with the existing software. Instead, I use Frank Markesteijn’s algorithm (in highest quality 3-pass mode). Fujifilm doesn’t mention it anywhere in their marketing copy, but this is how their X-Trans cameras suppress moiré. Even though X-Trans lost the battle, the results were very close. The concept is taken from some of Fuji’s older generation SuperCCD SR sensors – at a given pixel location there are in fact two photosites, one operating at a lower sensitivity and one operating at a higher sensitivity. But as we demonstrated in our debunking X-Trans myths as well as in our “sharpening X-Trans files” article, there are ways to get perfectly sharp images with Adobe products only… it just requires a few extra editing steps and the use of photoshop. Each point will elaborated and clarified in all its shades below. Let me explain. DPReview, who can’t be really labeled as a Fuji fanboy site (actually quite the opposite is true), says that their lab tests show the 16MP X-Trans Fujifilm X-T1 (without low-pass filter) has an effective resolution that “is not much lower than 24MP” (compared to Bayer cameras with low pass filter) – we reported here. Later that evening, after blue hour, I did a quick test of both cameras. But, being an entry-level model, it uses a common 16MP Bayer sensor. In this guide, I’ve attempted to cut through all the noise, and offer my recommendations of the top 9 Fuji cameras in 2020. In order to simulate an AA filter, we apply a blur filter to the high resolution target image, downscale it to the testing resolution, perform the RAW conversion and demosaicking, and then apply an unsharp mask filter to the output. Street Photography Is Not a Crime. X-Trans tends to produce line-like artifacts, appearing smeared in aggregate, whereas Bayer produces more speckle-like artifacts. 4:25. To call it random is extremely misleading, but that seems to be the theme for the entire brochure. One thing though: because the X-T1 doesn’t use a standard Bayer pattern on the sensor, RAW converters often don’t do a good job with them. X-T4: 134.6 x 92.8 x 63.8mm, 607g 2. If you want, you can now start your 5 minutes reading time :), I’ll address this first, because it is the easiest one :). X-Trans is more sensitive to subject color, performing its worst on subjects with predominant red or blue hues. The EXR sensor is different from the Bayer sensor pattern, and Fujifilm has re-arranged the Red, Green, and Blue pixels to enable pixel combining: Super CCD EXR explained (PDF). It is on par with any other ApS-C sensor, and actually just as good as some of the oldest full-frame cameras! However, even with the algorithmic lead, X-Trans appears to offer no advantage over AA-filterless Bayer, and in fact produced a lower fidelity result than Bayer in all but one test case. The Fujifilm X-T200 is Fujifilm's entry-level mirrorless camera with built-in EVF, but it doesn't scrimp on features, with a 24mp sensor, 4K video and large vari-angle screen. Also, keep in mind that lab tests at imaging-resource for example, are made using different lenses on different cameras. In combination with newly introduced three-way tilting LCD monitor and high resolution and high magnification (0.62x) organic EL electronic viewfinder, the FUJIFILM X-T100 is versatile, reliable and the ideal companion for executing creativity. I also bought a smaller secondary Fuji camera called the X-A2. However, I’ve done tests and found that this algorithm is at least as good as (and perhaps better than) Fujifilm’s. a faster processor (like the one on X-T3), as well as technology like a stacked sensor, could speed up the sensor readout significantly giving better results at FullHD 120fps slow motion, faster AF, better eye-detection and more. And at what cost? Loading ... 3-sensor vs Bayer color cameras - Duration: 4:25. And let’s take a look at that moiré target with a simulated AA filter: Now let’s compare our simulated AA-filter Bayer output to X-Trans. Everyone can clearly see the Bayer sensor is much better at resolving detail and fine patterns and X-Trans is simply worst, even though both are Fuji cameras and the X-T3 (26 MP X-Trans) costs much more compared to the X-A7 (24 MP Bayer). There is no evidence of “dramatically boosted resolving power.”. Bayer sensors are more colourful. Ah, there we go. Regarding the RAW files, we should take all lab tests with a grain of salt, since they all use Adobe standard demosaicing to judge the RAW quality of X-Trans sensor cameras, and we already reported above, that this is not the optimal solution. As you’d expect from a Fujifilm camera, the X-T4’s out-of-camera JPEGs require little to no processing, producing fantastic straight-out-of-camera shots. According to rumor website Fuji Rumors, there are two possible cameras that they are expecting it to be. Digital Cameras Fujifilm is one of the best regarded camera brands worldwide. With each recipe, I only included the cameras that are 100% compatible with that recipe. FujiRumors is a participant in the Amazon EU Associates Programme, an affiliate advertising programme designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.co.uk, Amazon.de, Amazon.es, Amazon.it, Amazon.fr. However, the higher the pixel density, the less moiré is likely to occur also with Bayer sensors. They each have a large image sensor and a 23 mm lens (35 mm equivalent angle of view in full frame format). It might seem most obvious to pick your camera, but that might not be the best choice. This was the original case for X-Trans, touted as a superior alternative to AA Bayer…, The Markesteijn algorithm does a better job of interpolating near-diagonal lines than does the AHD alogrithm, but this isn’t directly attributable to anything about X-Trans or Bayer; other Bayer demosaickers perform better in this regard, and other X-Trans demosaickers perform worse. This is true, if you work with X-Trans like you work with Bayer. And you have to define the source with “Source: Fujirumors.com” (working link). Subscribe to our Newsletter! There are many important differences to talk about and the design is one of them so let’s start with that. Explore the world of FUJIFILM X Series and GFX. documents). Without XTRANS technology, I'd toss all my Fuji stuff in the garbage and go back to Full Frame. Fujifilm also makes a series of lower-cost cameras that use Bayer sensors like you find in most other DSLRs. There are many situations where a recipe is 99% compatible. The new Fujifilm GFX will be an incremental update to Fujifilm GFX100. Click here to share it anonymously! AA-filterless sensors (or sensors with negated AA-filters) have become popular in part because their output appears sharper straight off the sensor, without digital sharpening. You may even think that there’s something magical about it. However, given the amount of noise reduction required to treat the false colors introduced by the omission of the AA filter, it seems unlikely that there is much, if any, net benefit. Using X-Trans didn’t buy us anything. Sony and Nikon files have the Bayer color pattern. First and foremost, let me say that I LOVE X-TRANS. Fujifilm X-H1 (APS-C 24MP) Vs. Sony A7rIII (FF 42MP) Vs. Canon 5DsR (FF 50MP) Vs. Nikon D850 (FF 45 MP), Fujifilm X-H1 (APS-C 24MP) Vs. Sony A6300 (APS-C 24MP). Fujifilm cameras are broadly categorised into X-system and GFX-system. But that’s not the only problem with this approach. Finally, and probably most practically, X-Trans requires significantly more processing time/power and, at the time of writing, all but one of the commercial RAW processing programs on the market produce lower quality output than the free-software Markesteijn algorithm used in preparing the examples for this article. With each recipe, I only included the cameras that are 100% compatible with that recipe. I also bought a smaller secondary Fuji camera called the X-A2. Of course the 20-30% more computing power required by the X-Trans sensor has consequences on things like heat generation, which Fujifilm partially solved by using larger heat sinks on the Fujifilm X-H1, so that, as Fuji Guy Billy told us here, “the processor can run much higher“, allowing for example the X-H1 to shoot at 200mbps instead of 100mbps on the X-T2. That superfine “detail” (which is really just aliasing) isn’t going to be visible when you zoom out, but the false color may, especially with examples of moiré. The Fuji X Weekly app has the ability, for Patrons, to filter by Camera or Sensor. With two model line exceptions (i.e. I’ve covered that in other posts. Still today, Bayer sensor cameras show more moiré than X-Trans cameras (including the 50MP Fujifilm GFX 50S), but I think that once APS-C cameras will go beyond 30MP and Medium Format reach 100 Megapixel with the Fujifilm GFX 100S, one of the advantages of X-Trans cameras (less moiré) will become almost negligible. Sensor Technology. Fuji — who has been a pioneer in sensor technology for decades — has rearranged the color filter array into what they call X-Trans. As you can plainly see for yourself in the above figure, there’s absolutely nothing random about the X-Trans CFA. The benefits of the 20-30% saved processing power when using Bayer could be: So at the end of the day I do not need many of the improvements listed above, and most improvements can be achieved by keeping the X-Trans sensor and improving sensor readout speed using a stacked sensor and/or a new processor. The target images themselves have been downscaled significantly from their original size in order to eliminate any noise and false colors from the input. Also, there exists computational diffraction reduction technology (which may be what Fujifilm is using in their so called Lens Modulation Optimizer) which actually relies on aliasing to function. Let’s simulate this effect by applying strong bilateral filtering to the chroma and reducing the saturation a bit (by about as much as STD/Provia does). This is because there are fewer red and blue sites in the X-Trans pattern compared to Bayer. You can pump the saturation back up all you want, but you can never recover the fine color detail after this kind of processing has been performed. Even if we don’t call this a tie, differences of this order would be completely swamped by 8-bit quantization, JPEG compression, optics and other real-world factors. Still today, Bayer sensor cameras show more moiré than X-Trans cameras (including the 50MP Fujifilm GFX 50S), but I think that once APS-C cameras will go beyond 30MP and Medium Format reach 100 Megapixel with the Fujifilm GFX 100S, one of the advantages of X-Trans cameras (less moiré) will become almost negligible. The poor performance of X-Trans on Example 4 is more interesting. It has been stated by reviewers that the X-Trans CFA offers a noise advantage over Bayer, producing lower color noise and having a more “film like” grain. This spell has a catch! This is what raw data from a sensor with a Bayer and an X-Trans CFA looks like, respectively, before demosaicking:This methodology allows for a direct comparison of the output with the input images (ground truth), and is the same technique employed by the researchers wh… Later that evening, after blue hour, I did a quick test of both cameras. But since that day comes, the X-Trans sensor still has an advantage. But, I have to admit, it’s a clever trick. Not optically, not in the particular arrangement of the CFA, but purely in the digital domain, algorithmically, and in a general way that is equally applicable to AA-filterless Bayer images. Bring on the magic! I had both cameras with me when I was out testing my super-wide lens. Fujifilm representatives have tossed around various figures of their own for X-Trans performance (“30% slower”) and have also hinted that one of the reasons they choose Bayer for their new medium format GFX 50S camera was because demosaicking 50 megapixel X-Trans images would be too slow. The X-Trans 4 sensor is able to gather considerably more light than the sensor on the X-T2, or any other APS-C Fuji mirrorless camera. email@example.com. Home Blog About Fuji cameras, x-trans sensors and RAW processing. The Foveon sensor is a totally different approach to digital camera sensors. Please visit their official websites by typing the specific brand name and adding .com after it in your browser. Especially since Full Frame is cheap nowadays. The Sigma “microcontrast” would be far superior to the Fuji — but the Fuji would be better than a Bayer because of the X-Trans sensor layout. Fujifilm is one of the best regarded camera brands worldwide. (Add to this that AHD hasn’t been tuned for unantialiased input, while Markesteijn is doing extensive 3-pass luminance interpolation.). The Future Fujifilm APS-C cameras should be. Check your inbox or spam folder now to confirm your subscription. The new Fujifilm GFX could feature a 102-megapixel Bayer image sensor. First off, let me make clear that this article relates to how the Fuji X-Trans sensor compares to the Bayer CMOS sensor in the Fuji X-A1, with regard to raw files processed in Photoshop CS6 / ACR and the OOC jpgs. Arriva dopo 18 mesi dall’uscita della precedente Fujifilm X-A3 e introduce alcune novità e funzioni che renderanno questa macchina appetibile ad un pubblico vasto. But probably it is possible to patch the header of a RAW file of a Fuji camera with the same sensor generation i.e. Fujifilm Manager Toshihisa Iida said it clearly this interview of 2017: the next generation APS-C sensors will still be X-Trans. The Fuji X Weekly app has the ability, for Patrons, to filter by Camera or Sensor. FUJI's X-Trans-Sensor im Vergleich zu Bayer-Matrix und Foveon rkphoto_art. As Fujifilm says here, X-Trans was mainly created to mitigate (not eliminate) the following issues present with Bayer sensors cameras: The unique 6×6 color filter array of the X-Trans sensor gives more accurate color reproduction and, by removing the optical low pass filter present in most Bayer sensor cameras, it also boosts resolution, hence another advantage compared to Bayer cameras with similar pixel number and low pass filter is…, at minute 11:39, DPReview says that the 16 MP X-T1 effective resolution is not much lower than 24MP, due to the virtues of the X-Trans sensor, as well as less color noise and moiré. Well, so much for that… This example looks far worse with X-Trans! A Bayer filter mosaic is a color filter array (CFA) for arranging RGB color filters on a square grid of photosensors. In this case it measures the difference between the ground truth and the demosaicked output. False colors are most apparent with high contrast monochrome subjects, which are instructional if not realistic. As shown here and in my previous articles, this level of post-processing, which is applied globally and indiscriminately, has the side-effect of significantly reducing fine color resolution. The butterfly wings didn’t fare too poorly (the high contrast edges make it easy for the bilateral filter), but look at the unnatural color of the fingernail in the NR’d image! There can be no more direct a comparison than this. There is a group of photographers who remain dedicated to using cameras with a Foveon sensor. So perhaps what Fujifilm really meant to say is that X-Trans demosaicking is 30% as efficient as Bayer. We'll provide the knowledge, inspiration and technique to enhance your photographic life. Let me explain. The difference between these two patterns of red, green, and blue sensitivity is what this article is all about. The X-Trans sensor in most of Fuji cameras does not use a Bayer matrix, but rather a very different matrix whose pixels are arranged in rows of three colors — a technology inspired by the naturally irregular distribution of silver halide crystals on film. Any apparent larger noise advantage found in other comparisons must be due the confounding factors of underlying sensor technology (Sony makes the sensors, FYI), ISO rating, electronic/thermal noise, and noise reduction baked in to the X-Trans demosaicking algorithm in use. In order to remove the complicating factors of optics, base sensor technology, etc., these comparisons are performed with synthesized raw images. So we can be sure that the Fujifilm X-T3 will have a new X-Trans sensor that will come along with a new processor, that will maybe overcome some of the limitations mentioned by Fujifilm managers with the current X-Processor Pro. Nevertheless, in our testing of previous Fujifilm Bay… Nevertheless, in our testing of previous Fujifilm Bayer-sensor cameras, the image quality remains very high, with lots of detail and excellent high ISO performance for this sensor size. This is a super short condensation and simplification of more complicated subjects, and as such it is naturally an inaccurate list. DCRaw is used for all demosaicking because it conveniently allows us to provide our own raw pixel data without having to wrap it in a container. The Fujifilm X-Trans is a CMOS sensor developed by Fujifilm and used in its Fujifilm X-series cameras. And it’s not me, a fanboy, saying it, but DPReivew’s own lab test. It’s just a larger pattern, 6×6 vs Bayer’s 2×2. For instance, you cannot use the RAW files directly in DeepSkyStacker. Potete tirare da voi le somme di questa analisi. Well,as if Fuji doesnt have enough different models to choose from in their X mount range,here comes another form factor. The Nikon uses the traditional Bayer array. This article was also published here. The sensor’s unique colour filter array minimises moiré and chromatic aberration without the need for an optical low pass filter, while dramatically boosting resolving power even at identical pixel counts to deliver sharp and texture-rich pictures. The XF10 is certainly one of the smallest compact cameras to have an APS-C size sensor, and although it’s a traditional Bayer design instead of Fuji’s legendary X-Trans sensor design, the image quality is impressive. From looking at the difference image, it seems likely that if AHD were doing a better job interpolating the near-diagonal lines in Example 2, it would have won across the board. 28 Sep, 2018 If you are an owner of a Fuji camera with an x-trans sensor, you will probably have already read a lot about the post processing of x-trans RAF files. The pattern repeats to fill the sensor, with the same orientation for each 2x2 cell. X-Trans provided a marginally higher PSNR than Bayer in the presence of noise (the results are so close that things like a different choice of Bayer algorithm, JPEG compression, and certainly any application of NR would wipe out the differences). The camera now has an ISO range of 80 – 51200. Annie Leibovitz Shoots the Pirelli Calendar Into a New Direction. The imaging sensor sits in the middle of your digital camera, right behind the lens, and turns the optical image into a digital version, converting light into electronic signals. According to rumor website Fuji Rumors, there are two possible cameras that they are expecting it to be. 1. The G1 X Mark III packs a 24.2MP APS-C sensor, but unlike the fixed focal length Fuji and Ricoh APS-C cameras, Canon’s top-line compact stands out by sporting a 3x 24-72mm-equivalent zoom lens. (Note that the input image is completely monochrome.). The resulting data is then fed into a demosaicking algorithm. I see no evidence that is one inherently more resistant to moiré than the other. This came after a long pause in availability of interchangeable lens cameras from Fujifilm (they made Nikon F-mount DSLRs in the 90’s and early 00’s). The Fujifilm X100 is a series of digital compact cameras with a fixed prime lens.Originally part of the Finepix line, then becoming a member of the X series from Fujifilm, the X100 series includes the FinePix X100, X100S, X100T, X100F, and X100V.