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Zeiss Elyra PS.1

Multi-functional fluorescence inverted widefield microscope enabling live-cell imaging, TIRF or HILO illumination and two super-resolution techniques: structured illumination microscopy (SIM) and single molecule localization microscopy (e.g. PALM).

Basic introduction to super-resolution microscopy can be found here:



  • Fast and sensitive multi-color widefield imaging with TIRF, HILO or EPI excitation option

  • Various measurement options: z-stack, time series, tile scan, multi positions and regions

  • Long term live-cell imaging available

  • Multi-color (up to 4 colors) super-resolution images obtained by SIM technique reaching lateral resolution of 120-160 nm and axial resolution around 300 nm

  •  Dual-color super-resolution images obtained by 2D and 3D single molecule localization methods (STORM, dSTORM, PALM; TIRF or HILO illumination available) with resolution improvement up to 10x compared to conventional optical microscopes

Technical specification

  • Motorized inverted fluorescence microscope Carl Zeiss Axio Observer equipped with Z-piezo stage insert, Definite focus (hardware autofocus system), Incubator XL dark and following units:


  • ZEN Black
  • ZEN Blue


  • Transmitted light Illuminator VIS-LED, color temperature 5600 K
  • Epifluorescence lamp module X-Cite® 120PC Q (Excelitas Technologies)
  • Lasers
    • 405 nm HR Diode Laser 50 mW
    • 488 nm HR Diode Laser 300 mW
    • 561 nm HR DPSS Laser 200 mW
    • 640 nm HR Diode Laser 150 mW
  • Availability of fully motorized epifluorescence (EPI), high inclined and laminated optical sheet (HILO) and total internal reflection illumination (TIRF). Adjustment of TIRF angle is also motorized.

Filter Turrets

Filter set “2” (turret with 6 positions)

MBS 405/561 + EF BP 420-480/BP 570-630/LP 740

laser excitation 405, 561, 640

fixed position

MBS 405/488/642 + EF BP 420-480/BP 495-560/LP 650

laser excitation 405, 488, 640

fixed position

MBS 405/488/561/642 + LBF -561/642

laser excitation 561, 640

fixed position

MBS 405/488/561 + LBF -488/561

laser excitation 488, 561

fixed position

Free position



Free position



Filter set “4” (turret with 6 positions)

MBS 405 + EF BP 420-480 / LP 750

tailored to laser line 405

fixed position

MBS 488 + EF BP 495-550 / LP 750

tailored to laser line 488

fixed position

MBS 561 + EF BP 570-620 / LP 750

tailored to laser line 561

fixed position

MBS 642 + EF LP 655

tailored to laser line 642

fixed position

Tripleband Set DAPI/FITC/TRITC FSet77 HE

epifluorescence lamp


Free position



Laser line 405 nm can pass on the excitation to serve as an activation laser for all filter cubes in PALM.

On demands, filter cubes from Carl Zeiss LSM 880 confocal microscope can be inserted to free positions of turrets. For visual inspection of image, filter cubes DAPI, FITC, mRFP and Cy5 are available in addition to Tripleband cube.


Type Immersion Mag. NA WD (mm) DIC/Correction ring Application
PlanApochromat Air 10x 0.45 2 - EPI
PlanApochromat Air 20x 0.8 0.55 - EPI
C-Apochromat Water 63x 1.2 0.28 Corr (CG=0.14-0.19 mm) EPI, SIM, PALM
alpha PlanApo Oil 63x 1.46 0.10 DIC, Corr (CG=0.15-0.19mm) EPI, HILO, SIM, PALM
alpha PlanApo Oil 100x 1.46 0.11 DIC EPI, HILO, TIRF, SIM, PALM
alpha PlanApo Oil 100x 1.57* 0.11 DIC, Corr (CG=0.165-0.175mm) EPI, HILO, TIRF, SIM, PALM

* Immersion oil with high refractive index (1.66) and HI cover glasses 0.17mm +/-0.003 are recommended for imaging

On demand, objectives from Carl Zeiss LSM 880 confocal microscope could also be inserted.


Module for environmental control

  • CO2 Module (CO2 concentration stable between 1 and 8% +/- 0.1%, adjustable) with humidity module, Heating Insert P and Heating Unit XL

SIM super-resolution platform

  • Detection of up to four different fluorescent labels (sequentially)

  • Five different grating frequencies for SR-SIM for optimal matching of illumination pattern to laser wavelength and objective lens (freely configurable)

  • 3 or 5 rotations, 5 shifts

  • Acquired on sCMOS camera, minimal time for single SR-SIM frame (1280px x 1280 px full frame, 3 rotations, 30 ms exposure time): 1.6 s

  • Full software control of SR-SIM imaging

  • Automatic selection and manual editing of processing parameters

PALM super-resolution platform

  • Detection of up to two different fluorescent labels (sequentially or quasi simultaneously by fast sequential laser switching)

  • Localisation precision: typically 20 nm - 30 nm lateral, 50 nm - 80 nm axial, given sufficient signal-to-noise

  • TIRF angle adjustment

  • Motorized TIRF field adjustment with three field size options (reduced FOV with the same laser power)

  • Acquired on EM-CCD camera; up to 30 frames per second (full frame mode, 512 x 512 pixels)

  • 3D imaging is achieved using an insert that produces a double-helix PSF in the image plane

  • Z capture range typically 1.4 μm

  • Full software control of PALM imaging

  • Adjustable parameter settings for optimal results in PALM with different fluorophore

If interested in measurement on Elyra, contact us.

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