I have an OPPO A9 which has a 48MP camera, but I can only take 12MP images. Even the raw files seem to be 12MP. The OPPO camera app has a 48MP mode, and does produce 48MP jpegs, so the camera is 48MP. Is there an option in Open Camera to let me use 48MP mode?
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Anonymous
Anonymous
-
2021-07-24
Hi, OPPO A9 has the Samsung S5KGM1 chip as the main camera sensor (do g-search: "Oppo A9 2020 Specifications devicespecifications" w/o quotes, see the first link). This sensor has 48M color masked sensors but the RGB image output from the chip is 12MP, per Samsung specification (do g-search: "Samsung Home Image Sensor Mobile Image Sensor S5KGM1" w/o quotes, see the first link) which says: "Resolution 4000x3000 (48M (12M Output))".
IThe quantity of pixels in a color imaging chip has been customary been told to be the same quantity as there are color masked sensors in the chip, so fro example a matrix of 16M color masked sensors is blown up to make a 16MP RGB final image. Now Samsung advertises the 48M color masked sensors in the chip, but makes the chip so that a 12MP final RGB image is build out of them. So, Samsung is converging towards the truth. But many gadgets manufacturers want to use the 48M color masked sensors for their marketing hype.
I have the very same sensor on my Xiaomi Redmi Note 9T 5G, it is good sensor for any gadget. In this chip, each of the color masked sensors reside inside of a square that has dimensions of 800nm by 800nm, not all of that surface area is photon sensitive, it is not revealed how much of the surface area is "dead weight" due to the fill factor. As the wavelength range of visible light is very very close to the 800nm, it is a small miracle that the sensor can produce usable images at all. In my opinion the 12MP images are not good/usable -when- viewed at pixels size (that is: at 100% zoom or at 1:1) so I keep the 'Camera resolution' setting in OC at 1920 x 1440, it is enough for as big as 50cm by 37.5cm prints. At the 1920 x 1440 camera resolution, each pixel is the result of four of the original output pixels averaged. Averaging reduces the amount of visual noise, on the expense of sampling resolution.
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I have an OPPO A9 which has a 48MP camera, but I can only take 12MP images. Even the raw files seem to be 12MP. The OPPO camera app has a 48MP mode, and does produce 48MP jpegs, so the camera is 48MP. Is there an option in Open Camera to let me use 48MP mode?
Hi, OPPO A9 has the Samsung S5KGM1 chip as the main camera sensor (do g-search: "Oppo A9 2020 Specifications devicespecifications" w/o quotes, see the first link). This sensor has 48M color masked sensors but the RGB image output from the chip is 12MP, per Samsung specification (do g-search: "Samsung Home Image Sensor Mobile Image Sensor S5KGM1" w/o quotes, see the first link) which says: "Resolution 4000x3000 (48M (12M Output))".
IThe quantity of pixels in a color imaging chip has been customary been told to be the same quantity as there are color masked sensors in the chip, so fro example a matrix of 16M color masked sensors is blown up to make a 16MP RGB final image. Now Samsung advertises the 48M color masked sensors in the chip, but makes the chip so that a 12MP final RGB image is build out of them. So, Samsung is converging towards the truth. But many gadgets manufacturers want to use the 48M color masked sensors for their marketing hype.
I have the very same sensor on my Xiaomi Redmi Note 9T 5G, it is good sensor for any gadget. In this chip, each of the color masked sensors reside inside of a square that has dimensions of 800nm by 800nm, not all of that surface area is photon sensitive, it is not revealed how much of the surface area is "dead weight" due to the fill factor. As the wavelength range of visible light is very very close to the 800nm, it is a small miracle that the sensor can produce usable images at all. In my opinion the 12MP images are not good/usable -when- viewed at pixels size (that is: at 100% zoom or at 1:1) so I keep the 'Camera resolution' setting in OC at 1920 x 1440, it is enough for as big as 50cm by 37.5cm prints. At the 1920 x 1440 camera resolution, each pixel is the result of four of the original output pixels averaged. Averaging reduces the amount of visual noise, on the expense of sampling resolution.