Could the 20.3-million-pixel Samsung Galaxy NX with Android operating system change the way enthusiast photographers use and think about their cameras? Read the Samsung Galaxy NX review...
Samsung Galaxy NX review – Noise, resolution and sensitivity
Image: At ISO 3200, JPEG images have heavy noise reduction applied in-camera. This makes the images appear smudgy and soft
At ISO 800, images show some noise but it is well controlled in both raw and JPEG format. It is not until ISO 1600 that noise starts to become noticeable. Images up to ISO 3200 are usable, but at ISO 6400 luminance and chroma noise start to become evident. This is especially the case at the maximum ISO 12,400 setting.
I think ISO sensitivity of 100-800 is a good working range for both raw and JPEG images, striking a good balance between noise and detail resolution. Images taken at ISO 800 would still be fine for A3 prints without noise being a problem.
JPEG images do appear softer and it is clear to see that some in-camera noise reduction has taken place even at the lowest sensitivity setting of ISO 100, although for certain pictures it complements the images. At ISO 1600, very detailed areas start to become really soft because of the in-camera noise reduction.
These images show 72ppi (100% on a computer screen) sections of images of a resolution chart, captured using the 18-55mm lens set to 35mm and f/5.6. We show the section of the resolution chart where the camera starts to fail to reproduce the lines separately. The higher the number visible in these images, the better the camera’s detail resolution is at the specified sensitivity setting.