BioQuantum K3 Imaging Filter

Maximize your resolution and contrast for cryo-EM by combining low distortion GIF Quantum optics with a K3 detector.

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The BioQuantum™ K3™ imaging filter provides fundamental insights into cellular organization and ultrastructure by combining high-performance post-column energy filtration with direct detection technology. Ideally suited for low-dose imaging applications, researchers can maximize their cryo-electron microscopy (cryo-EM) and cryo-electron tomography (cryo-ET) capabilities to gain further insight into system function and disease progression at the molecular level.

  • Highest DQE available: See smaller particles, more confidently detect conformational changes, perform cryo-ET at lower dose, preserve higher resolution information for 3D reconstruction
  • Optional inline, GPU-based motion correction: Avoid the need to save terabytes of raw frames
  • 24 megapixels (5,760 x 4,092) field of view: 1.6 times the size of the K2® camera
  • 1,500 full frames per second: 3.75 times the speed of the K2 camera


Journal of Structural Biology

Eisenstein, F.; Danev, R.; Pilhofer, M.




Continuing our prosperous collaborations that built the K2, the K3 is the successful result of Peter Denes' team at Lawrence Berkeley National Laboratory and David Agard.

Model 1967


BioQuantum K3 Imaging Filter

Related products

K3™ Direct Detection Camera
Latitude™ S Software
Elsa™ Cryo-Transfer Holder
Cryoplunge® 3 with GentleBlot™ System

Related materials

Nyquist frequency
Dose fractionation and motion correction
Improving DQE with counting and super-resolution

Modulation transfer function (MTF) curves
  200 kV 300 kV


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