Microscopes UK . Having had side by side demonstrations next to the Olympus CX2. LED and Leica DM1. Yenway scopes. Also purchased were two Yenway SZN stereos equipped with Yen. Cam HD II high definition camera systems. Speaking about the cameras Iain Tough, applications supervisor, commented.
Eight Student Polar Microscopes. College and university students of geology in the USA. I was one) were often introduced to the petrographic. We learned a big part of geology.
Earth. You can not know geology without knowing rocks and minerals, and you can. At least one. semester of optical mineralogy and petrography was a common requirement for. A teaching lab for optical mineralogy might be equipped. Then as now, they were a big budget item for the department. After. decades of use and disuse, several makes and models of student microscopes of. For. example, the lab where I spent many long evenings puzzling my way through junior.
Vickers M1. 4s, black Zeiss. Juniors, a black horse shoe foot B& L or two, and I think a black Leitz with a. U- stage mounted on it (a universal stage can be rotated in all three dimensions. Zeiss and Leitz from West Germany were held in highest.
Polarized light micrograph of olivine crystals in garnet peridotite rock. Specimen prepared with 3M A polarizing microscope has a wide range of applications in fields such as geology, metallurgy and medicine. The interaction between the polarizer and adapter allows. Olympus is about life. About photographic innovations that capture precious moments of life. About advanced medical technology that saves lives. Laser Confocal Microscopes Olympus Laser Confocal Microscope offers superb image quality and accurate 3D measurement by non destructive observation.
Greg's Leitz Microscopes Page. Here is a separate page about Leitz Wetzlar microscopes, including photos. Photos of vintage microscopes and interesting photomicrographs. Comments concerning these pages can be addressed to [email protected]. OLYMPUS BH2 MICROSCOPES. After working, teaching, and playing.
Vickers, Zeiss Jena (East Germany), Reichert of Austria, Bausch and. Lomb, American Optical, and Olympus or Nikon. The Japanese brands were rather. I found them to be very capable.
Micscape has presented several useful articles on petrographic scopes. I once had one in my shop that I.
The Olympus BH2 Microscope has a longevity that can't be beat, even though Olympus produces a number of stellar microscopes each year. The product came out in 1980.
Arizona. It was a perfectly functional. Even after. 2. 5 years or more of use, these instruments remain very capable and desired by those of us. A wider audience exists for student or lab microscopes from the latter decades of the 2.
Many. amateur or professional scientists will find one to be perfect for home use, and It can also be a great. I have seen many examples for sale at.
Canadian dollar is almost par. USD, and about $2 is close to 1 GBP).
This is a small. fraction of their new cost, and one in good condition can be a great bargain. As you probably know, the interesting variety of classic. With the. decline of optical mineralogy as a course requirement after the 1. As might be expected after years. This article concerns examples of such microscopes that you might. Bay. Having. taught optical mineralogy myself, I know about the abuses, both innocent and. Many, perhaps most, have.
Food and. drinks are regularly spilled onto and into lab microscopes, followed perhaps by. Oils from refraction index. If an. objective can be lowered to break a glass slide or rotated to hit a mechanical. Many attempts have been made to overcome resistance. I have also seen some fine old scopes reduced to. A hard gray cement could. Lenses and optical filters in student microscopes are.
Possibly the best. Carl Zeiss of West Germany, has the worst reputation for this problem. It is common for students to use.
Infrared radiation from the white- hot lamp filament permeates. The care and quality that went into major- brand. The abundance of older student.
Bay but also by professional dealers). Not just good optics and. These are the same reasons why.
The top companies lavish the same expensive care. Most older polarizing microscopes at all levels use achromat or plan achromat objectives and condensers. I also fix up old. Some I use in my lab. Bay. Models I have personally used as a student include the black Zeiss. Junior and the Vickers M7.
My examples neglect Nikon, which was not. It is my loss to not encounter many Leitz.
Dialux in the Micscape. Orthoplan Pol that my chairman let. That Orthoplan, in my considerable experience, was the finest. I have ever used. The following illustrations and comments describe eight. I like them all, but they are presented by.
These and others are. Leitz SM. Pol. Thanks to Dirk van der Marel (eapoecistron. Bay), here is a photo of a well- maintained Leitz SM (. I have a. monocular Labolux pol scope in my shop with a similar stand and. Labolux is thicker so it can hold an. The fine optics and quality found in larger siblings are. SM model, but of course this simpler external light source is not.
For lighting, you. Europe), a 6- volt 5- watt lamp with transformer, or a mirror.
Rather than in an intermediate. Bertrand lens is in the. The polarizing filter beneath the condenser can be rotated, and. There is another slot for a wave. The turret is. permanently attached and can hold four objectives, but three .
Two stage clips were standard. X- Y slide holder in this example is a very nice accessory made for all Leitz.
The single axis knob works well for both fine and coarse. The black Leitz SM- Pol and Labolux- Pol apparently. Higher- level models have a removable turret than slides into a. Leitz had so many microscope variations, accessories.
But it adds lots of interest for. From small to large, these were the. SM- Pol, Labolux- Pol, Dialux- Pol, Epilux- Pol, Ortholux- Pol, and Orthoplan- Pol.
Leitz was a major player in the polarizing microscope market, as shown by. All were made. an absolute peak of excellence. LOMO Min 1. I don't know if this microscope. Soviet Union, but. I bought this field microscope on e. Bay. from a seller in Russia.
It looked too interesting to pass up, and the final bid. It arrived loose in a large burlap sack with a label and. Never seen. anything quite like that before.
If not for the sturdy field case it came in, the microscope would surely. The hard aircraft aluminum case. Once assembled. it stands about 2. The diminutive field scope. My translation of the Russian label on the stand is Min- 1, one of. Min or mineral analysis models made by LOMO in past years. Dirk Marel. once had a black enamel benchtop pol scope on e.
Bay called a Min- 8, and I have. Min- 6. A search of the internet and an email to LOMO. LOMO Min series scopes. When assembled, the microscope. The. clip- on objectives are full size short- barrel types that were common in the 1. The analyzer is on a. Bertrand lens is in the head.
In design you can detect its. Zeiss Jena (East Germany) kinship, with the entire arm and head moved for. Fit and finish are quite plain and utilitarian, but the construction. The optics were adequate. Of the eyepieces, the low powers were OK but the higher power almost.
You could probably swap out optical parts easily enough, as they are. This model is so rare and so interesting, I wish I had kept it. Field microscopes can be very.
In the olden days, we would scrape. A rock section is much better, but. They. are widely advertised in geological trade magazines. In design the ML series has. Olympus CH- 2, and thus are aimed at both student use. It is definitely a 1.
Bertrand lens, and compensating plates (6x. These all function via sliding plates inserted into tube slots. This. one was also equipped with a very nice X- Y slide holder, made in the pol- scope.
There is a focus movement limit that can be set to prevent. It also has a diaphragm before the field lens and an. Kohler- type even illumination. All very. professional. Just in the past year or so have. I noticed that Meiji has brought out a newer infinity tube length MT series.
I expect dealers still have these venerable ML models in stock. The few Meiji pol and biological. I have. used have been honest, smooth operating machines with good optics and good. This one is full sized but still light enough to be fairly portable. Not. particularly robust, nor does it have the superior mechanical feel and polished. ML9. 20. 0 is nice to use, very functional.
Some older models were continued anyway. Vickers, below). Olympus marketed this smaller student model. BH line of larger benchtop. However, there was also no stinting on.
It has excellent fit and finish with a. It came with a. mirror for lighting, but I added this plastic 1. Like most models in this. Bertrand lens are mounted in sliding plates in. Of course, the tube and stage were installed in the same stand that was.
I am not enthusiastic about. I suppose are easier to.
The clips work well and are quick to change, but you have to. I tend to do. Overall, in my opinion this is. I have used by CTS, Vickers, American Optical, Bausch & Lomb, and. Later as a program administrator and part- time adjunct.
I taught had a few scopes like. I eventually learned is a Neopan. You may be more familiar. Zetopan, which despite homely looks had a good reputation. This smaller model felt a lot like a Zeiss Jena. The focusing mechanism. I saw how to use it properly.
The large. knob turns for the coarse focus as you would expect, but then to fine- tune it. You. can see the slot to allow this movement in the side of the stand. It actually. works quite well. A monocular. head is present on the few other Neopan pols I have seen, and I think that the. Also there is no way to.
Seidentopf style head. Zeiss had a version with a. I have not seen in other brands.
More recently I obtained. Reichert trinocular head and incident (reflecting) light tube, which I. Neopan. Alas I now have no stand for it, as yet. There is a. sliding polarizer for the incident tube and an analyzer slider, and I think a. Bertrand lens as well. The upper knob switches the light path for the photo.
However, as on my example above, the eyepiece tubes are not really. August 2. 00. 8 Micscape).
Vickers M7. 0The M1. M7. 0 are very. similar models from Vickers, which they converted from black enamel stands. CTS (these British companies merged in the 1. At one. time they were common at American geology programs, at least at the several I. I assume they were much less expensive than the Zeiss scopes that we. Later in my first job in mineral exploration.
I bought one of these for my personal use from a private college that sadly went. It went cheaper after the auctioneer said it was missing an objective. The. microscope served me very well for many years, and I still look back at it with.
Olympus BH- 2). The objectives on this example are 5x, 1. Vickers. strain- free pol objectives use red lettering, but the regular biological.
OK on it as well. A few examples I have encountered had a loose stage carrier connection. Many mechanical and light- path adjustments are possible in this. The company used a modular.
Bertrand lens (some have a lower dual knob that swings it in, while the. There were also two eyepiece tube sizes for. The. holder between the feet looks somewhat primitive, but the lamp tube can be adjusted. As in the Leitz, there is a slot for a 4x.