Fujifilm X-Trans sensor
The Fujifilm-X-Trans-Sensor is an image sensor in CMOS technology. Instead of a Bayer sensor, it uses a different sampling method that the manufacturer calls X-Trans .
The pixel pattern is more complex than that of a Bayer sensor. It is based on a 3x3 point scheme in which the center and the four corner points are permanently occupied with the color green, the four free points on the flanks are occupied with opposite red and blue colored points. This basic pattern is rotated by 90 degrees with each repetition so that the complete pattern consists of 6x6 pixels. With this pixel arrangement, the distance until the arrangement is repeated is tripled, the area of a basic cell is 9 times as large. The geometric properties of classic film, in which there is never a repetition and the color grains are distributed completely stochastically, are not achieved, however.
This has the following advantages:
- The moiré effect is minimized, especially moiré in individual colors. Fuji cameras with the X-Trans sensor therefore do not have an anti-aliasing filter .
- Every color is represented in every line. This allows red and blue line pairs to be better resolved. Green line pairs or other structures remain unchanged from the resolution.
- The measurable resolution is improved for several color areas, which improves the overall resolution.
- The frequency distribution of the color points for R / G / B is 2: 5: 2 instead of 1: 2: 1 for the Bayer pattern. This comes closer to the color vision of the human eye, in which the sensory cells sensitive to the color green are also much more common than for the other two primary colors.
These sensors are used in almost all Fujifilm X series cameras . Among other things, Fujifilm claims to achieve the resolution of full format sensors with sensors in APS-C format .
The fourth generation of the X-Trans sensor has been on the market since September 2018 with a resolution of 26.1 million pixels and rear exposure under the name X-Trans CMOS 4 in the Fujifilm X-T3 and X-T4 camera models.
Individual evidence
- ↑ Fujifilm X-Trans sensor technology . Archived from the original on April 9, 2012. Info: The archive link was automatically inserted and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved April 10, 2012.
- ↑ Fujifilm X-T3: Fujifilm revises its digital system camera Report on the Golem.de portal on September 6, 2018, accessed on September 13, 2018
- ↑ Mirrorless system camera with APS-C format sensor: Fujifilm X-T3 with new sensor and new processor presented Report on digitalkamera.de from September 6, 2018, accessed on September 28, 2018
