“At present only the Gatan K2, when operated in counting mode, can produce a DQE(0) as high as 80% in conjunction with reasonably small exposure times. The K2 detector frame rate is about 10 times higher than that available with the two other detector brands.”– Subramaniam, S., Kuhlbrandt, W. & Henderson, R. (2016). IUCrJ 3, 3-7.
The K2 Summit® electron counting direct detection camera is simply the highest performance detector available for cryo-electron microscopy (cryo-EM). The unmatched frame rate of this direct detector allows electron counting modes to improve both contrast and resolution for large and small molecules alike.