The Advantages of DR400 vs DR200 vs DR100 - High Contrast Scene

Started Sep 2, 2013 | Discussions thread
prime Senior Member • Posts: 2,163
Re: The Advantages of DR400 vs DR200 vs DR100 - High Contrast Scene

alexisgreat wrote:

Also, do the benefits of more DR outweigh the disadvantages of this sensor (more noise at base and higher ISO, lower resolution?) I've heard it mentioned that conventional sensors resolve more detail than these sensors do. While more DR can be gotten manually by taking consecutive images and combining them yourself, there is no way to get that extra resolution back (or is there?) Also, how can one compare the expanded DR of EXR cameras vs the expanded DR of other manufacturers like Canon's i-Contrast? Would that be a better sensor because it has the better resolution and ISO performance of a conventional sensor AND expanded DR?

Wow. More questions.

Fujifilm's 1/2" EXR sensors (there have been Super CCD and CMOS versions) have been excellent performers for their size, full stop. But, as is generally true, the smaller the sensor, the lower the ISO setting where noise becomes obtrusive.

The "resolve more resolution" phrase covers many subissues.

  • Unless you crop (or have to rotate the image a lot of degrees), you are unlikely to be able to display any resolution above about 6MP. Your monitor probably cannot process that many pixels independently, and your HD television certainly cannot; an 8"x10" print displays fewer than 6,000,000 pixels. More sensor pixels cannot create more resolution on your monitor, TV, or 8"x10" print.
  • Because of the unusual non-Bayer filter arrangement, the demosaicing process creates a different apparent resolution from an EXR sensor than other cameras create from a Bayer-filter sensor of the same size. EXR sensors have less apparent resolution of low-contrast green than Bayer-filter sensors do. If you want to show off individual blades of distant grass under cloudy skies, you probably want to be shooting with a camera that has a non-EXR sensor.
  • Canon's i-Contrast appears to be a dead ringer for the kind of DR enhancement that Fujiilm deployed in the Fujifilm S100fs of five years back, that Fujifilm used for the last part of the DR800 and DR1600 of EXR cameras, and uses in the X20 camera of 2013.
  • The hardware EXR preserves more recoverable data than the software noise shaping does.  Blown highlights cannot be recovered in PP if they are lost in the initial exposure.
  • Do you think that you will get better resolution on your screen than the image below with a sensor that has more pixels and less extensive dynamic range?

Shot at M size, ISO Auto400, DR400; please view at full size.

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