Bio-Imaging Unit

Nikon A1R

Nikon A1R


The Nikon A1R is a point scanning confocal microscope based around a fully motorized, inverted Nikon Ti body with hardware-enabled focus correction.

The system has three photomultipliers for fluorescence imaging, one for transmitted light detection and a dedicated photomultiplier array for spectral profiling or if required, unmixing of fluorescently ‘complex’ specimens.

Incorporated into the confocal scan-head are both resonant (fast scanning) and non-resonant (conventional scanning) scanning mirrors. This allows experimenters to have the option of imaging in high resolution (up to 4096x4096 pixels), at high speed (420fps at 512x32 pixels) or a combination of both. This arrangement is ideal for live-cell photo-activation and photo-bleaching studies where resonant scanning can be used to capture images at high-speed and non-resonant scanning can be used to target a region of interest for photo-activation.

Resonant scanning mode has added benefits; for live-cell experiments, photo-sensitive specimens remain live for longer and fluorophore bleaching is significantly reduced. The system will also perform regular 2D, 3D and 4D imaging. The microscope is fully-enclosed in a heated environmental chamber and has the ability to set, maintain and monitor temperature, humidity, CO2 and O2 levels as imaging conditions dictate.

The system is run through Nikon’s versatile Elements software package and incorporates wizards to perform common imaging tasks such as:

  • FRAP
  • FRET
  • colocalisation as well as
  • data quantification


Here you can find the specifications for this microscope.

Example objectives

100x Oil 1.4
60x Oil 1.4
40x Oil 1.3
40x Air 0.95
20x Air 0.75
10x Air 0.3

Imaging modes

  • multi point x,y (2D) with tiling
  • volume x,y,z (3D)
  • time lapse x,y,z,t (4D)
  • spectral
  • live cell


  • 405nm
  • Multi line Argon: 457nm, 476nm, 488nm, 514nm
  • 561nm
  • 647nm


  • 2 x PMT
  • 2 x GaAsP
  • 1x PMT for transmission


This microscope is located in the Central Unit, on campus.

The Central Unit is based in the Bioimaging Unit in the William Leech Building. Room M2.142.

Newcastle University
William Leech Building
Medical School
Framlington Place 
Newcastle upon Tyne

Here, you can get directions to the building.

Enter your postcode or address to find directions


Find out how to book this microscope.

The minimal booking time for this equipment is 30 minutes. Time increments of 15 minutes are permitted.

Bookings can be cancelled with no charge up to an hour before scheduled use.

Before booking this equipment, please ensure the following:

  • any users are fully trained, and approved by a member of BioImaging facility staff
  • microscopes are left in a good state of tidiness (lenses/stage should be cleaned of any oil)
  • filters and lenses must not be removed or switched between systems without authorisation from Bioimaging facility staff

If you work at Newcastle University, you can book this microscope online by using iLab.

If you're a commercial company or an academic at another institution, just contact us to discuss your requirements.