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Olympus Model BX51
Fluorite Lenses with 100x Iris
Research Grade Upright
Fluorescence Microscope

USD $11,500

Shipping Cost: Free Worldwide Shipping


Main Features:

  • Frame Marking: Model BX51TF. Made in Japan.
  • 6-Position Fluorescence Reflector Turret.
  • Six position objective nosepiece, capable of DIC, having the opening for the DIC slider.
  • Ergonomic binocular tilting/inclining viewing head. Ability to tilt/incline to the desired angle as well as telescope out for optimal ergonomic positioning for the user.
  • Rear photo port. Prism slider allows 100% light to eyepieces or 20% of light to eyepieces and the rest to rear camera port.
  • Eyepieces: WHN10X/22 High Eyepoint with ability to use eyeglasses when viewing.
  • Rubber cupping eyeguards. This is the version for blocking out extraneous illumination for better fluorescence viewing.
  • Halogen Lamp Housing: U-LH100. 12V-100W.
  • Fluorescence Lamp Housing: U-LH100HGAPO. This is the more expensive housing with high color corrected APO lenses. Utilizes an included HBO 100W Mercury bulb.
  • Transmitted Light Filters built into frame: LBD-IF light balancing daylight interference filter, frosted diffuser filter, and Neutral Density filters ND6 and ND25.
  • U-AC2 Abbe Condenser. N.A. is 1.1.
  • BX-RFA Reflected Light Vertical Illuminator. With Aperture and Field Iris Diaphragms, with corresponding centering adjustments.
  • Light intensity LED display with preset button.
  • Mercury Power Supply: Depending on your Voltage needs (120VAC or 220VAC), we will change this power supply accordingly.
  • UV Shield for blocking extraneous UV light.
  • Original Olympus 3mm hex screwdriver.
  • Included all needed power cords.
  • DOES NOT INCLUDE CAMERA OR LAPTOP. Camera is shown in images to demonstrate that one can be connected.
  • Includes c-mount camera adapter with built in reduction lens.

Objective Lenses:

  • UPlanFl N 4x/0.13, infinity/-. FN26.5.
  • UPlanFl 10x/0.30, infinity/-.
  • UPlanFl N 20x/0.50, infinity/0.17, FN26.5.
  • UPlanFl 40x/0.75, infinity/0.17.
  • UPlanFl N 100x/1.30, Oil, Iris, Infinity/0.17, FN26.5. The iris is a great option for fluorescence since you can cut out the extraneous light, increasing the brightness of the fluorescing specimen.

Dichroic Fluorescence Filter Cube:

  • One Filter Cube:

BLUE (by Chroma, 11001v2, ex 470/40, 495 dichroic mirror, em 515lp., minimal wear);
Link to factory specs:


  • This microscope is in great condition.


  • This is a high quality Olympus (Made in Japan) optical instrument. We also sell Chinese made fluorescence microscopes but the quality is substantially lower. We highly discourage buying the Chinese microscopes due to the problems that incur after the sale.

Testing Results:

This microscope was fully tested. Results are as follows:
All functions were found to be in proper working order.

  • Brightfield – Koehler illumination was set properly, with all adjustments and centering being properly achieved.
  • Incident Reflected Fluorescence – HBO Bulb was properly centered obtaining bright, clear, and uniform illumination distribution across the complete field of view.

Fluorescing Achieved –

  • The included filter cube performed fine. It gave an acceptable image on 4x, and great image on 10x, 20x, 40x and 100x (using oil). The iris on the 100x performed fine and helped to cut out extraneous illumination.
    Tried a new cube that is not included. Results were same, all very good.

Optional Accessories:

  • We have a wide variety of optional scientific cameras, both monochrome and color, with and without Peltier cooling.
  • Other objectives are available.
  • We can provide brand new replacement 100W HBO Mercury Bulbs and Halogen bulbs.
  • DIC Differential Interference Contrast Microscopy and Phase Contrast Microscopy can be included and configured as an option.
  • This model is excellent for upgrade to Phase Contrast and DIC since it has the 100W transmitted light. Compare that to the BX41 which is only 30W and not as good for Phase and DIC.
  • Brand new Chroma hard coated filter cubes with lifetime warranty may be added. Cost is USD $750/set for the dichroic filter (emission filter, dichroic mirror, barrier filter) and included blank cube.

Fair Market Value – Discount Price:

  • Fair Market Value USD $14,500.00.
  • Discount Price USD $11,500.00.
  • We found very few complete comparable models for sale by others. They ranged from $13,500 to $15,500. We are pricing our unit significantly lower.
  • In addition, we are including a one year warranty, money back guarantee, and free shipping that are value added additions not given by most resellers and should be added to the value.

User Manual and Instructions:

Click this link:  Olympus IX71 Inverted Microscope Brochure
Click this link: Olympus IX71 Inverted Microscope Manual


One Year Parts and Labor Warranty:
We warrant this Microscope to be free from defects due to normal usage in normal operating conditions for a period of one year. Camera equipment (if included) is given a three month warranty. Objective lenses are excluded from warranty.
Additional warranty on microscope may be purchased if desired.

We will repair or replace equipment at no charge, during the one year warranty period. Both parts and labor are included. Buyer is responsible for shipping costs BOTH ways, paying for shipping cost to our designated repair facility and shipping cost back to buyer. Bulbs are considered user replaceable items and not covered.

Warranty Excludes Objective Lenses:
Our warranty excludes the objective lenses. There are several reasons for this. First of all, if the objective is good, it will continue good performance unless there is some user or environmental abuse. Abuse can be from oil getting on a non-oil immersion lens, contact with a solution that degrades the cement around the glass, contact with other chemicals that may stain, etch or pit the glass, scratching the lens by incorrect cleaning methods such as cloths not of lens cleaning quality, damaging the lens by scraping it on slides or metal slide holders on the stage, dropping on a hard surface, subjecting the objective to extreme humidity causing internal mold or mildew, etc.
In addition, objectives can’t feasibly be repaired. If an objective is damaged so that the optical quality is significantly diminished, it is suggested to throw it away. One solution is to send it back to the factory and incur a repair fee equal to about half the price of a new replacement. That is usually cost prohibitive. We professionally clean the front and back lens, and the outside barrel of the objective. But we do not open them up. That should only be done by the factory under strict conditions and with optical laser alignment. Generally, when someone other than the factory messes with a lens, the performance may still be acceptable, but likely will be noticeably lower quality when compared side by side with a new lens. So since defective objectives are generally thrown away, and replaced with another one, there is no need to warranty them. The user can easily find a matching objective and replace it on their own.

Objective Lenses – Condition:
All objectives have been professionally cleaned.
All are guaranteed to be free from optical defects. If any defect is found, it will be clearly noted in the ad.
Our inspection of the objective lenses includes checking for the following:
lens cracking, pitting, lens cement not intact, internal oil damage or oil seepage, glass fogging, glass hazing, stains on optical glass, mold or mildew stains, and delamination (separation of internal lenses).

Condition of Equipment:
This reconditioned microscope is complete and in excellent working order and has been completely checked out and serviced.

Technical Sales and Support:
Most offerings of used microscopes are by simple flippers of equipment who have obtained defective and rejected microscopes from labs discarding the equipment. They resell exactly what they got, as they got it, and without any technical knowledge of it. You can rest assured when purchasing from us that we are professional dealers who are well trained to service and provide technical support of the microscopy equipment. We test, repair and refurbish all equipment to excellent working conditions. We are well trained and able to give you technical advice including pre-sale and post-sale support.

Microscope Training – Setup Support – Software Assistance:
Concerned about how to set up and operate this equipment? Need training? Need help with software for the camera? We can help. Contact us for more details.

Free Application Evaluation and Recommendation:
We strongly encourage all potential buyers to first contact us with regards to their specific application. In most situations, we need to customize certain features of the microscope in order to best fit the end user’s technical requirements. We want to ensure you have the correct and optimal configuration for your application.

Fluorescence Filter Sets – Customized:
We are dealers of both Chroma and Omega brands (Made in USA) of dichroic filters. Please contact us regarding the specific fluorophores you are using so we can be sure the filter sets provided are a proper match. Incorrect matching will give you poor quality or no visible fluorescing.

Free Worldwide Shipping:
Equipment may ship from Outside USA. We provide free worldwide shipping. The method of shipping may vary, depending on destination country, but may be via commercial air cargo. Not all countries will have door to door service. Contact us for further details so we can discuss shipping arrangements.

Customs Duty and Tax:
Any and all customs brokerage, customs entry, VAT and duty/tax are the responsibility of the buyer. Buyers in USA can contact us in advance to see if there are any entry fees.

Voltage Requirement:
Our equipment may show 110V and/or 220V external power supplies. Some power supplies are not Volt selectable. Depending on your country of final destination, and the Voltage supply, we may need to change the power supply shown in the ad to one that matches your power requirements. Contact us first with your Voltage requirement so we can be certain we have the required power supply if it needs to be changed from what is shown in the ad.

Payment Method Accepted:
We generally accept purchase orders from government, educational, and industrial facilities in some countries. For some preapproved orders, we accept credit cards. We also accept bank wire (telegraphic) transfers. Contact us for details. We properly screen all buyers to protect against fraudulent transactions. We reserve the right to deny transactions deemed to be potentially fraudulent.

Financing Available for Select Customers:
If you are unable to afford the full purchase price, please contact us about financing details. Our financial partner offers 90 Days “Same as Cash” and deferred payments up to 6 Months.

We have rental plans available for some companies and universities. Contact us for details.

Money Back Guarantee:
We guarantee you will be satisfied with your purchase. If in the unlikely event you are not satisfied and want to return your item, please contact us within 14 days of receiving it. We will then arrange to get you details about how to return it. We have no restocking fees but the actual cost we paid for shipping will be deducted from refund amount. We give free shipping, but for returned items, this cost will be charged to buyer.

Beware of Counterfeit Fake Parts:
Be sure of whom you are buying from as a lot of “dealers” are selling counterfeit parts, passing them off as originals. Click this link.

All Original Parts – Not Counterfeit.html

Warning: UV light and Mercury Bulbs are Dangerous! YOU MUST Read BEFORE purchasing!

Click this link.

Safety with UV Light