Featuring a new higher-resolution design, the M11's 60MP full-frame CMOS sensor also features a back-illuminated (BSI) design that offers improved noise performance and faster readout speeds. The higher resolution suits more detail-oriented applications, like landscape and architectural subjects, and the noise-reduction benefits of the BSI design improves clarity and color accuracy when working in low-light conditions with higher ISOs. The sensor's physical design also includes an updated ultrathin dual-layer filter glass, which absorbs UV and IR wavelengths for greater clarity and more accurate rendering from the M lenses.
Besides the 60MP resolution and BSI design, another first for M cameras is Triple Resolution Technology. This unique pixel binning process allows photographers to select 60MP, 36MP, or 18MP outputs, with each resolution making use of the full sensor area and providing rich 14-bit color. By pixel binning, rather than cropping, the lower resolutions have improved dynamic range and noise levels. The new Maestro III processor contributes to the faster processing and Triple Resolution Technology of the M11. It helps achieve a wider sensitivity range than past M cameras.
An ISO 64-50000 range is now available for greater detail, quality, and natural color rendering at lower ISO settings. The Maestro III also enables continuous shooting at up to 4.5 fps and facilitates fast file saving for an intuitive shooting experience. The optical viewfinder is a large and bright 0.73x-magnification rangefinder with automatic parallax compensation and bright-line frame lines, which are set to match the image sensor size at a focusing distance of 6.6'. On the front of the camera, a viewfinder frame selector can be used to manually change the apparent image field and visualize the scene with varying focal lengths; options are available in 35mm/135mm, 28mm/90mm, and 50mm/75mm focal length pairs.