Low-Cost GFP/ RFP Fluorescence Stereo-Microscope System

Quantity Pricing
$7,345.95 - Regular price.
$7,075.68 - 2 or more.
$6,805.41 - 3 or more.


Base and Illumination

Camera Mounts

For several years, our customers, impressed by the excellent optics and great price of our SMT1 Dissecting Stereomicroscopes, have been asking for a Fluorescence Dissecting Scope in the same vein of quality and economy.  After lots of research and development, recently presented at the International C. elegans Meeting, the result is the SMT1-FL. Note: for our new ultra-high performance multi-fluorophore dissecting scope, check out the SMT1-FL-QC!

The microscope is available with a few different options for the base/stand and illumination. Fluorescence illumination is always from the top, and we have options that allow for different types of standard white-light illumination of your specimens. For top lighting, select our standard "ergonomic" base and add our dual goose-neck LED illuminator. For transillumination (through the sample), you can use our standard "ergonomic" base with frosted glass plate and built-in fixed LED illumination of ∼30mm in diameter. For an upgraded transillumination option, select our taller, narrower, triangular transillumination base with a large rotatable and translatable mirror. This upgraded base employs a larger frosted mirror and clear glass plate. Moving the diffusion farther from the specimen increases contrast and resolution. The larger mirror can illuminate a sample ∼50mm in diameter, and changing its angle and position allows for optimal contrast to visualize internal structures (for example structures within the C. elegans pharynx and embryos, or within internal organs of Zebrafish, Xenopus, chick and mammalian embryos). Click here to see the triangular base on our non-fluorescence scope with an old-school halogen fiber-optic illuminator. An optional foot pedal allows for the white illumination to be flashed on as needed to orient samples without moving your hands or losing your dark-adapted vision.

The Tritech Research Fluorescence Dissecting Stereo-microscope replaces the old cumbersome mercury arc lamp with a state-of-the-art Light Emitting Diode (LED) illuminator.  This dramatically lowers power consumption, heat, and the cost of accessory optics and power supplies. 

For example: 

Fluorescence Illumination
Mercury Arc Lamp
Tritech LED System
Watts consumed
Lifespan (hours)
250 10000
Cost per bulb (US$)
$250 $25
Bulb Cost / 10000 hrs
$10,000 $25
Power cost @ $.2 / kW-hr
$500 $1
Total Cost of disposables
Cost of Scope + Acces.
Total Cost

1 lamp for fluorophores
low heat output

energy efficient

40x lifespan

dichroic mirror optional

1/400 bulb cost

1/500 power usage

no UV danger

no high-voltage danger

no toxic Hg concerns

less expensive housing

Our system uses ultra-high-quality multi-coated filters to isolate the excitation and emission wavelenghts from each other by up to 4 orders of magnitude, keeping bleed-through background at a minimum.


The nematode C. elegans expressing the [Punc-25::GFP] transgene (juIs76). unc-25 encodes glutamic acid decarboxylase (GAD). UNC-25 is expressed specifically in GABAergic neurons and localizes to cell bodies, axonal branches, and synaptic regions in the 19 type D motor-neurons, most notably shown here in the 13 ventral nerve cord neurons.


C. elegans expressing a [Pmyo-2::dsRed] transgene. myo-2 encodes a tissue-specific myosin class II heavy chain. MYO-2 is expressed specifically in the muscles of the pharynx, as shown here by the expression of the Red Fluorescent Protein dsRed.

Larvae of transgenic Drosophila melanogaster expressing GFP in their salivary glands.

"Tritech Research is the first and only company to offer LED-based complete GFP Dissecting Stereo-microscope Systems, saving customers thousands of dollars. Traditional Mercury arc lamp based fluorescent systems cost up to $35000. They have perfected the LED-based GFP microscopy and completely eliminated the mercury arc lamp and associated optics, bringing the price of the microscope to one third of its previous cost!." FAQ's

Q: What is the wavelength of the LED and the filter type for GFP and for RFP?
A: We use an excitation spectrum of 450-490nm. We have two options for the emission filter. We have a green bandpass filter that is 500-550nm or a long pass filter than is 510nm+ that allows one to see green, yellow, orange, and red fluorescence.

For RFP, we have two choices of modules. One is optimized for TRITC / dsRed / tdTomato (orange fluorescence) and the other is optimized for Texas Red / mCherry (deep red fluorescence). Contact us for more details!

Q: What are the recommendations for choosing between GFP and RFP fluorophores?
A: Regarding whether to get a GFP set vs one of the RFP sets with the SMT1-FL scope, the answer mostly depends on what fluorophore you think that you will wish to look at most. Since GFP was the first single-protein fluorophore widely available, it is the most commonly used in strains and vectors. It is also generally brighter and easier to see than the red fluorophores. Unless you know that you will need to look at primarily mCherry, we would recommend the GFP set. There are actually two GFP sets available. They both use the same excitation lamp, but one uses a green-specific band-pass emission filter and the other uses a blue-blocking long-pass emission filter (this one lets you see different colors of fluorescence but shows more background fluorescence as a result of that).

† These are our list prices. If you are paying with an Institutional Purchase Order or by check, you qualify for a 7.5% discount. Click here to change your payment method and see the lower prices.