What is "exmor"

Exmor is the name of a technology Sony implemented on some of their CMOS image sensors. It performs on-chip analog/digital signal conversion and two-step noise reduction in parallel on each column of the CMOS sensor.

Exmor R is a back-illuminated version of Sony's CMOS image sensor. Exmor R was announced by Sony on 11 June 2008 and was the world's first mass-produced implementation of the back-illuminated sensor technology Sony claims that Exmor R is approximately twice as sensitive as a normal front illuminated sensor. This active pixel sensor is found in several Sony mobile phones and cameras as well as Apple's iPhone 4S and 5. The Exmor R sensor allows the camera of the smartphone to capture high definition movies and stills in low lit areas.

Originally, Exmor R was limited to smaller sensors for camcorders, compact cameras and mobile phones, but the Sony ILCE-7RM2 full-frame camera introduced on the 10 June 2015 features an Exmor R sensor as well.

Exmor RS is a stacked CMOS image sensor announced by Sony on 20 August 2012