Bausch & Lomb EM-14 Dynazoom Trinocular Metallurgical Microscope with Trivert Illuminator
-Used Excellent Condition!!

This is a wonderful example of a classic Bausch & Lomb Dynazoom microscope that is adapted for the examination of thicker opaque materials. The stand has been slightly modified by the addition of a spacer block which raises the limb about an inch higher from the base. The stage carrier has been modified so the stage sits a similar distance further from the viewing head, thus providing extra room for the vertical illuminator assembly.

These microscopes are very modular, so it is helpful to state how they are configured. The stand itself features a low-set coaxial coarse and fine adjustment mechanism that is comfortable to use with the hands resting on the table surface. The XY mechanical stage has low-set coaxial control knobs and a pair of removable specimen holders for an unobstructed stage surface. The stage has the rack & pinion substage assembly that is provided with an Abbe condenser with aperture iris.

The base of the stand includes an optional hi-intensity illumination housing with a lamp socket. This housing has a centerable field iris diaphragm with built-in filter recess. There is no transformer for the transmitted light illumination, it will need to be sourced elsewhere.

The stand is provided with the most elaborate version of the many tubes that were available for this instrument. This microscope tube has binocular observation and a control knob to switch the light path into a port on the top of the tube. It also features a 1x to 2x continuous zoom mechanism that operates in both the photo and binocular ports. The zoom knob is graduated. The microscope pod may be turned through 180 degrees so the limb of the stand may either be away from or close to the observer (the vertical illuminator prevents continuous rotation). A pair of B&L 10x wide field oculars is supplied as is a photo-port adapter collar. This collar would be used with various shutter housings that Bausch & Lomb manufactured for their camera systems. No cameras are included.

The vertical illuminator is the most elaborate of the several Bausch & Lomb provided for the Dynazoom. Called the ‘Trivert’, it has provisions for bright field, dark field, and (when so optioned) polarized light. Please note that no polarized light accessories are included with the equipment! The illuminator has separate field and aperture diaphragms and a slot for receiving filters. A pre-centered GE 1630 lamp provides more-than-adequate light intensity. The lamp includes a Jeffey transformer with continuously regulating transformer. A selector knob next to the beam-splitter swings in a central stop for observations in dark field (field and aperture diaphragms must be fully opened).

The base of the illuminator carries a quadruple nosepiece positioned away from the observer allowing better viewing of the specimen. The objectives are all of a special version with annular lucite collector lenses for the dark field illumination. The objective threads are actually turned into the lucite eliminating the need for a special large-thread objective � all threads are standard RMS 20mm. The four 215mm tubelength objectives include:

8x / 0.20 � working distance 0.530 inches, largest field-of-view 0.093 inches
10x / 0.25 � working distance 0.390 inches, largest field-of-view 0.073 inches
20x / 0.40 � working distance 0.035 inches, largest field-of-view 0.036 inches
40x / 0.65 � working distance 0.030 inches, largest field-of-view 0.018 inches

The stand is in near-flawless condition cosmetically. The microscope body has been completely rebuilt so the binocular portion interpupillary system works smoothly as well as the zoom mechanism and the viewing port selector. Binocular alignment was touched up so both eyepieces are perfectly coincident. Regarding mechanical condition, the fine focus adjustment is fully functional and turns easily, but feels a bit ‘dry’. The coarse adjustment works very smoothly. Both stage controls work smoothly. The only optical ‘issues’ are the alignment of the diaphragms in the Trivert illuminator. Unless one slightly stops down the field diaphragm (still outside the viewing field, however), there is an annoying halo that appears during dark field observations. This halo is also present in bright field but is less obvious. Slightly stopping down the field diaphragm appears to block this spurious illumination. The objectives are not perfectly parfocal. However, the microscope works well the way it sits. All optical surfaces are in perfect condition.

BMI Surplus, Inc. has a huge inventory of new, pre-owned and refurbished Microscopes, Microscope Parts & Microscope Parts and Components for sale.
We will work with you individually to find the perfect microscope or microscope parts for your application.

Buy online or give us a call with any questions at 781-871-8868.
We have experienced customer service representatives standing by ready to help you!

**Shipping, Handling & Freight fees are dependent on your location.
We will provide a freight quote to meet your individual needs and work with you if you prefer to use your own carrier.
We have over 32 years of experience of shipping sensitive scientific instruments & industrial equipment.
We ship with the utmost care!

Don’t see what you are looking for? Use our orange search box on the top right hand corner of this page to customize your search.

***MPN EM-14
***OEM Bausch & Lomb (B&L)
***SKU*** 32289

Bausch & Lomb EM-14 Dynazoom Trinocular Microscope

This is another wonderful example of a classic Bausch & Lomb Dynazoom microscope that is adapted for the examination of thicker opaque materials. The stand has been slightly modified by the addition of a spacer block which raises the limb about an inch higher from the base. The stage carrier has been modified so the stage sits a similar distance further from the viewing head, thus providing extra room for the vertical illuminator assembly. The excursion of the stage is such that a specer is needed to lift the sample high enough so it may be focused by the objectives. Minimum distance between the stage and ‘focal plane’ is about 10mm.

These microscopes are very modular, so it is helpful to state how they are configured. The stand itself features a low-set coaxial coarse and fine adjustment mechanism that is comfortable to use with the hands resting on the table surface. The XY mechanical stage has low-set coaxial control knobs and a pair of removable specimen holders for an unobstructed stage surface. This stage carrier has no provision for a substage system and the base of the stand has cover plates installed where the transmitted light illumination system would otherwise go.

The stand is provided with the most elaborate version of the many tubes that were available for this instrument. This microscope tube has binocular observation and a control knob to switch the light path into a port on the top of the tube. It also features a 1x to 2x continuous zoom mechanism that operates in both the photo and binocular ports. The zoom knob is graduated. The microscope pod may be turned through 180 degrees so the limb of the stand may either be away from or close to the observer (the vertical illuminator prevents continuous rotation). No oculars are supplied. Equiped with a photo-port adapter collar. This collar would be used with various shutter housings that Bausch & Lomb manufactured for their camera systems. No cameras are included.

The vertical illuminator is the most elaborate of the several Bausch & Lomb provided for the Dynazoom. Called the ‘Trivert’, it has provisions for bright field, dark field, and (when so optioned) polarized light. Please note that no polarized light accessories are included with the equipment! The illuminator has separate field and aperture diaphragms and a slot for receiving filters. A pre-centered GE 1630 lamp provides more-than-adequate light intensity. The lamp includes a Jeffey transformer with continuously regulating transformer. A selector knob next to the beam-splitter swings in a central stop for observations in dark field (field and aperture diaphragms must be fully opened).

The base of the illuminator carries a quadruple nosepiece positioned away from the observer allowing better viewing of the specimen. The objectives are all of a special version with annular lucite collector lenses for the dark field illumination. The objective threads are actually turned into the lucite eliminating the need for a special large-thread objective � all threads are standard RMS 20mm. The four 215mm tubelength objectives include:

8x / 0.20 � working distance 0.530 inches, largest field-of-view 0.093 inches
10x / 0.25 � working distance 0.390 inches, largest field-of-view 0.073 inches
20x / 0.40 � working distance 0.035 inches, largest field-of-view 0.036 inches
40x / 0.65 � working distance 0.030 inches, largest field-of-view 0.018 inches

The stand is in superb condition cosmetically. The microscope body has been completely rebuilt so the binocular portion interpupillary system works smoothly as well as the zoom mechanism and the viewing port selector. Binocular alignment was touched up so both eyepieces are perfectly coincident. Focus mechanism and stage controls both work very smoothly. Optically, the stand is in superb condition, however there is some minor misalignment of the field and aperture diaphragms in the vertical illuminator. Images are still excellent and I will leave it up to the purchaser as to whether he wishes to address that issue.

***MPN EM-14
***OEM Bausch & Lomb (B&L)
***SKU*** 32288

American Optical (branded Reichert) EpiStar materials inspection microscope. It includes the EpiStar stand along with a trinocular observation tube.

The Model 1860 Industrial Microscope stand has a very large yoke and is able to accommodate stages with up to 6 by 6 inches of travel. The stage is rigidly clamped to the microscope base and does not move during focusing. Instead, the nosepiece carrying the objectives is the only part that moves. The infinity corrected optics of the system allow moving the objectives relative to the rest of the stand without any loss in optical corrections.

The stand has a special super-long-life 20w halogen lamp (life rated at 10,000 hours) that is situated at the back of the stand. A filter turret has four positions � one open, one diffusion disk, a daylight blue filter, and a strong green filter. A fully adjustable field iris is situated just forward of the filter turret.. The illumination train has a swing-out beam-splitter used for brightfield vertical illumination. When swung to one side using the lever on the right side of the microscope, the illumination flux is directed to an annular mirror just above the revolving nosepiece. The nosepiece will accommodate five objectives using RMS threads. The continuously regulating transformer is built into the base of the stand.

The stand includes a trinocular microscope tube, type 1103. This tube is a Seidentoph arrangement so tube length remains constant no matter what the setting of the interpupillary distance. A lever switches the image between the binocular and the phototube port. It is also possible to mount an optional image erection tube (type 3002) between the microscope stand and the observation tube. This tube is not included but is available as a separate item on our website..

The stand and tube are in excellent condition and fully functional. Please note that the microscope does not include the stage, stage mounting bracket, or any optics. Please check our website for availability of these items.

BMI Surplus, Inc. has a huge inventory of new, pre-owned,
recycled & refurbished Microscopes, Microscope Parts & Microscope Components for sale.
We will work with you individually to find the perfect microscope or microscope parts for your application.

Buy online or give us a call with any questions at 781-871-8868.
We have experienced customer service representatives standing by ready to help you!

**Shipping, Handling & Freight fees are dependent on your location.
We will provide a freight quote to meet your individual needs and work with you if you prefer to use your own carrier.
We have over 32 years of experience of shipping sensitive scientific instruments & industrial equipment.
We ship with the utmost care!

Don’t see what you are looking for? Use our orange search box on the top right hand corner of this page to customize your search.

***MPN 1860
***OEM American Optical (AO)
***SKU*** 32244

American Optical 1860 Epi-Star Microscope.

This is an American Optical EpiStar materials inspection microscope. It does not include anything other than the basic stand..

The Model 1860 Industrial Microscope stand has a very large yoke and is able to accommodate stages with up to 6 by 6 inches of travel. The stage is rigidly clamped to the microscope base and does not move during focusing. Instead, the nosepiece carrying the objectives is the only part that moves. The infinity corrected optics of the system allow moving the objectives relative to the rest of the stand without any loss in optical corrections..

The stand has a special super-long-life 20w halogen lamp (life rated at 10,000 hours) that is situated at the back of the stand. A filter turret has four positions � one open, one diffusion disk, a daylight blue filter, and a strong green filter. A fully adjustable field iris is situated just forward of the filter turret.. The illumination train has a swing-out beam-splitter used for brightfield vertical illumination. When swung to one side using the lever on the right side of the microscope, the illumination flux is directed to an annular mirror just above the revolving nosepiece. The nosepiece will accommodate five objectives using RMS threads. The continuously regulating transformer is built into the base of the stand.

Stage, stage carrier bracket, observation tube, and optics will need to be sourced. Please check our website for available components.

Photo set 2052

BMI Surplus, Inc. has a huge inventory of new, pre-owned and refurbished Microscopes, Microscope Parts & Microscope Parts and Components for sale.
We will work with you individually to find the perfect microscope or microscope parts for your application.

Buy online or give us a call with any questions at 781-871-8868.
We have experienced customer service representatives standing by ready to help you!

**Shipping, Handling & Freight fees are dependent on your location.
We will provide a freight quote to meet your individual needs and work with you if you prefer to use your own carrier.
We have over 32 years of experience of shipping sensitive scientific instruments & industrial equipment.
We ship with the utmost care!

Don’t see what you are looking for? Use our orange search box on the top right hand corner of this page to customize your search.

***MPN 1860
***OEM American Optical (AO)
***SKU*** 32245

USMCo Industrial Stereo Microscope with zoom and camera adapter
4 turret positions

***MPN
***OEM USM Corp
***SKU*** 61347

Microscope with 10x Crossline.
***MPN
***OEM Gaertner Scientific
***SKU*** 11185