Electronic viewfinders (EVFs) on mirrorless cameras have evolved to be so much better over the last 5-7 years that they leave old-fashioned optical viewfinders (OVF) on DSLRs in their digital dust.
In case you didn’t know, an EVF uses the data from the camera’s imaging sensor to display an image on a small OLED screen (or LCD on the rear of the camera). This means that an EVF shows the image that the sensor outputs. EVF resolution, colour and contrast is much improved, and there’s less lag in the digital live image we see now.
