Is the DxO One the perfect camera upgrade for iPhone users? Andy Westlake finds out.
Lab Results – Noise
Both raw and JPEG images taken from our diorama scene are captured at the full range of ISO settings. The camera is placed in its default setting for JPEG images. Raw images are sharpened and noise reduction applied, to strike the best balance between resolution and noise.
As usual for cameras with this sensor, the DxO One delivers a combination of excellent detail and low noise at ISO 100. Some fine-grained luminance noise starts to creep in at ISO 400 when viewing images closely, but this will rarely have any impact on prints. By ISO 1,600 we see shadow detail starting to block up, while low-contrast detail blurs away. By the time we reach ISO 6,400, almost all fine detail has been lost and colours have become desaturated, making this usable only for non-critical purposes, such as low-resolution web images. The top two extended settings of ISO 25,600 and ISO 51,200 are barely usable at all, when looking at either the camera’s JPEGs or, as here, DNG files processed through Adobe Camera Raw.