ORCA-Fusion Digital CMOS camera


The ORCA-Fusion, built from the sensor up, balances the complex nuances of camera features to provide beautiful images and robust data at all lights levels, but especially in tough low-light conditions. The exceptionally low and highly uniform read noise of the ORCA-Fusion means that when the sample emits even just a handful of photons, either by default or by experimental design, they are not lost in the noise, but detected and reliably quantified. After all, when you want to hear a whisper it’s best to be in a quiet place.


  • High resolution : 2304 × 2304 (5.3 Megapixels)
  • High speed : 100 frames/s (at 2304 × 2048 ROI)
  • Dynamic range : 21,400:1
  • Pixel size : 6.5 μm × 6.5 μm
  • Read noise : 0.7 electrons, rms (Ultra quiet Scan)
  • Prnu : 0.06 % (@ 7500 electrons)
  • DSNU : 0.06 electrons
  • Peak QE : 80 %
  • Patented Tools for Advanced Imaging: Lightsheet Readout Mode

Lightsheet Readout Mode [Patented]

“Lightsheet Readout Mode” is a unique and patented feature of Hamamatsu sCMOS cameras which can improve signal to noise ratios in Lightsheet microscopy.
For more information about the principle and features of Lightsheet Readout Mode, please see details from below.


What is Lightsheet Readout Mode?


Authors Title Source
Piatkevich, K.D., Bensussen, S., Tseng, Ha. et al. Population imaging of neural activity in awake behaving mice Nature 574, 413–417 (2019).
Silvia Benito-Kwiecinski, Stefano L. Giandomenico, Magdalena Sutcliffe, Erlend S. Riis, Paula Freire-Pritchett, Iva Kelava, Stephanie Wunderlich, Ulrich Martin, Gregory A. Wray, Kate McDole, Madeline A. Lancaster An early cell shape transition drives evolutionary expansion of the human forebrain Cell, Volume 184, Issue 8, 2021, Pages 2084-2102.e19,
Madhav Mantri, Gaetano J. Scuderi, Roozbeh Abedini-Nassab, Michael F. Z. Wang, David McKellar, Hao Shi, Benjamin Grodner, Jonathan T. Butcher & Iwijn De Vlaminck Spatiotemporal single-cell RNA sequencing of developing chicken hearts identifies interplay between cellular differentiation and morphogenesis Nat Commun 12, 1771 (2021).
Kiryl D. Piatkevich, Seth Bensussen, Hua-an Tseng, Sanaya N. Shroff, Violeta Gisselle Lopez-Huerta, Demian Park, Erica E. Jung, Or A. Shemesh, Christoph Straub, Howard J. Gritton, Michael F. Romano, Emma Costa, Bernardo L. Sabatini, Zhanyan Fu, Edward S. Boyden & Xue Han Volumetric live cell imaging with three-dimensional parallelized RESOLFT microscopy Nat Biotechnol 39, 609–618 (2021).
Xinyu Wang, Chong Liu, Siwei Zhang, Huiwen Yan, Liwen Zhang, Amin Jiang, Yong Liu, Yun Feng, Di Li, Yuting Guo, Xinyao Hu, Yajing Lin, Pengcheng Bu, Dong Li, N6-methyladenosine modification of MALAT1 promotes metastasis via reshaping nuclear speckles Developmental Cell, Volume 56, Issue 5, 2021, Pages 702-715.e8,
Emily C. Wheeler, Anthony Q. Vu, Jaclyn M. Einstein, Matthew DiSalvo, Noorsher Ahmed, Eric L. Van Nostrand, Alexander A. Shishkin, Wenhao Jin, Nancy L. Allbritton & Gene W. Yeo Pooled CRISPR screens with imaging on microraft arrays reveals stress granule-regulatory factors Nature Methods volume 17, pages636–642 (2020)
Scott M. Emrich, Ryan E. Yoast, Ping Xin, Vikas Arige, Larry E. Wagner, Nadine Hempel, Donald L. Gill, James Sneyd, David I. Yule, Mohamed Trebak, Omnitemporal choreographies of all five STIM/Orai and IP3Rs underlie the complexity of mammalian Ca2+ signaling Cell Reports, Volume 34, Issue 9, 2021, 108760,
Tomomi Suzuki, Tetsuo Mioka, Kazuma Tanaka & Akira Nagatani An optogenetic system to control membrane phospholipid asymmetry through flippase activation in budding yeast Sci Rep 10, 12474 (2020).
Nicholas S. Groves,Merissa M. Bruns and Schuyler B. van Engelenburg A Quantitative Live-Cell Superresolution Imaging Framework for Measuring the Mobility of Single Molecules at Sites of Virus Assembly Pathogens 2020, 9(11), 972
Pierre Stömmer, Henrik Kiefer, Enzo Kopperger, Maximilian N. Honemann, Massimo Kube, Friedrich C. Simmel, Roland R. Netz & Hendrik Dietz A synthetic tubular molecular transport system Nat Commun 12, 4393 (2021).
Hugh Sparks, Lucas Dent, Chris Bakal, Axel Behrens, Guillaume Salbreux, and Chris Dunsby Dual-view oblique plane microscopy (dOPM) Biomed. Opt. Express 11, 7204-7220 (2020)
Philipp Zelger, Lisa Bodner, Martin Offterdinger, Lukas Velas, Gerhard J. Schütz, and Alexander Jesacher Three-dimensional single molecule localization close to the coverslip: a comparison of methods exploiting supercritical angle fluorescence Biomed. Opt. Express 12, 802-822 (2021)

PC recommendations

With the introduction of the ORCA-Fusion, users are now able to stream 5 megapixel images to their computers 89 frames per second. The computer recommendations for this high data rate can be met by using the guidelines listed this PC Recommendations for ORCA-Fusion.


Our software provides the interface to access all of our carefully engineered camera features, from simply setting exposure to orchestrating complex triggering for multidimensional experiments.


Type number C14440-20UP
Imaging device sCMOS
Effective no. of pixels 2304(H)×2304(V)
Cell size 6.5 μm(H)×6.5 μm(V)
Effective area 14.976 mm (H)×14.976 mm (V)
Full well capacity 15 000 electrons *1
Readout speed Fast scan: 11.22 ms (89.1 frames/s with CoaXPress or 31.6 frames/s with USB 3.0) (2304 x 2304) *5
Standard scan: 42.99 ms (23.2 frames/s with CoaXPress or USB 3.0) (2304 x 2304) *5
Ultra quiet scan: 184.4 ms (5.4 frames/s with CoaXPress or USB 3.0) (2304 x 2304) *5
Readout noise Fast scan:1.4 electrons rms *1
Standard scan:1.0 electrons rms *1
Ultra quiet scan:0.7 electrons rms *1
Exposure time Fast scan: 17 μs to 10 s (4.87 μs step)
Standard scan: 65 μs to 10 s (18.65 μs step)
Ultra quiet scan: 280 μs| 10 s (80.00 μs step)
Cooling method Peltier cooling
Cooling temperature Forced-air cooled: -5 ˚C (Ambient temperature: +25 ˚C)
Water cooled: -5 ˚C (Water temperature: +25 ˚C)
Water cooled (Max cooling): Less than -15 ˚C *1,*3
Dark current Cooling temperature(-5 ˚C): 0.5 electrons/pixel/s *1,*4
Cooling temperature(-15 ˚C): 0.2 electrons/pixel/s *1,*4
Dynamic range 21 400 : 1 *1,*2
External trigger mode Edge, Level, Sync readout, Start, Global reset edge, Global reset level
External trigger signal routing SMA
Trigger delay function 0 s to 10 s in 1 μs steps
Trigger output 3 programmable timing, Global exposure timing, trigger ready, low, high
External signal output routing SMA
Interface CoaXPress (Dual CXP-6) and USB 3.0 *6
A/D converter 16 bit / 12 bit / 8 bit
Lens mount C-mount
Power supply Approx. 150 VA *7
Ambient operating temperature 0 ˚C to + 40 ˚C
Ambient operating humidity 30 % to 80 %, with no condensation

*1 Typical value
*2 Calculated from the ratio of the full well capacity and the readout noise
*3 The water temperature is +20 ˚C and the ambient temperature is +20 ˚C
*4 Dark current depends on cooling temperature
*5 Valid to 4 digits and rounded up to 5th digit
*6 USB 3.1 Gen 1 compatible
*7 The value with AC 240 V. (Approx. 70 VA with AC 100 V)

Spectral response


Instruction manual

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