Introducing the new 32mm OptoSpin


Ex-demo cameras available for UK customers


Fastest way to contact the Cairn team....

Due to most of our team working remotely, the fastest way to get in touch with us is by using either or


OptoTIRF V2 Laser Illuminator

We are pleased to announce the arrival of our new TIRF illuminator


MultiSplit - Four-way image splitter

Introducing our latest image splitter


Filters For Microscopy

In stock for delivery across Europe


Fluorescence Microscopy – DESIGN TO INTEGRATION.

Light Sources

With over 30 years of experience in building light sources for the life sciences we offer a range of solutions for fluorescence, transmitted light and OptoGenetics.

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OptoSplit II

Image Splitters

With an emphasis on optical performance, stability, usability, and flexibility Cairn are proud to offer a broad range of multichannel emission and detection products.

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Integrated Imaging Systems

Complimentary to our wide range of in-house microscopy and macroscopy products we also have an experienced team of scientists offering turnkey systems and solutions.

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Custom Microscopy Design

We have a dedicated design and R&D team with an onsite engineering machine workshop and offsite contracted engineers available with over 20 years of experience.

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Working in partnership with

Proud to Supply

Photometrics Kinetix

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LDI Laser Diode Illuminator

LDI  Laser Diode Illuminator

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CoollED pE-4000

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X-Light V2Tp Confocal Imager

X-Light V3 Confocal Imager

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Latest News

CYTO Innovation Stories event featuring Martin Thomas

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Martin pictured preparing for the interview with our range of filter wheels in chronological order from right to left At the end of last month Martin, our Chairman & founder, was interviewed by Jakub Nedbal from ISAC (International Society for…


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DORNRÖSCHEN IS WAKING UP! And the Union flag that she is flying is the European one, with quite a lot having gone on during her Covid-induced sleep Yes, it does really feel like that we’ve all been asleep for a…

MetaMorph customers – New release of MetaMorph Imaging package now available

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If you have a Cairn service contract for your imaging system or an active maintenance plan this can be updated free of charge, if you need to renew please contact us. Click here for MetaMorph Software 7.10.4 – key new…


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We suspect that most of us have, from time to time, had to endure the wrath of people whom we may have managed to upset, however inadvertently that may have been.  But as Martin has just discovered, this can also…