میکروسکوپ

میکروسکوپ

SE-ZE-4

آموزشی

زایس آلمان

جدید

As I mentioned above, students and instructors in my programs generally preferred Zeiss pol scopes when given a choice among several models. Its not that they were a lot easier to use, especially with the pesky 2-ring centering on the objectives. The objectives were not particularly parfocal either, the older Kpl 8x oculars did not provide a very wide view, and the lighting was none too bright at higher powers. But when you are using one, the quality just flows from the machine into your hands and it becomes a real pleasure. I have had several Zeiss pol scopes and I like them a lot, as do most people who have used them.

This is the Junior model, which has a small round base and an external "flashlight" type lamp holder with a 110 volt 15 watt bulb. You should use a GFCI outlet with such direct-voltage instruments. In the 1970s, many programs started to buy new gray monocular Zeiss Standards, either with a lamp tube in the base connected to an external transformer, or with a 10-watt halogen lamp and transformer built into the base. I have already described one of those gray Standards in my October 2006 article, so I decided to show you this older black enamel model. These 160 mm tube length optics remained the same as those used in later Zeiss pol scopes right through the 1980s, including high-end research models, except later eyepieces provided better wide-field viewing. You must hold both rings on each objective so they can be turned independently, which move small cams to change the center of view. The trouble is, when they are new they can move too easily and any little bump when you rotate the turret shifts the view center. Some years later, they get stiff and are a bear to move independently. A nose turret with centering bolts is better.

Many Zeiss pol scopes of this vintage show some breakdown or delamination of the analyzer pol filter. I once inspected eight black Zeiss scopes in a college lab in which every one had this problem. A little fogging around the edges will not make much difference, while if it is bad enough, the head can be disassembled and the filter replaced (you might need to search a while to find one of good quality in the right size). Sometimes the polarizing filter is damaged as well, but only rarely have I seen problems of optical fogging in these pol objectives. The objectives can also be disassembled to lubricate sticky centering rings, but it is a job that might best be assigned to a professional technician.

As students, we were certain that the Zeiss Bertrand lens (built into the monocular tube in this example) along with the other optics provided a superior conoscopic figure, leading to better results in lab exercises (thus better grades). Well, maybe an instrument like this just builds confidence

این مجموعه شامل 3 دستگاه میکروسکوپ پلاریزان تک چشمی و یک دستگاه میکروسکوپ  دو چشمی برای مطالعه مقاطع میکروفسیل از کمپانی معظم زایس آلمان میباشد
کلیه قطعات میکروسکوپ اورجینال میباشد
دستگاهها بسیار کم کارکرد و آماده به کارهستند
میکروسکوپ های پلاریزان با بزرگنمایی 400 و 500 برابر و میکروسکوپ میکروفسیل بزرگنمایی 1000 برابر هستند
میکروسکوپ های پلاریزان دارای فیلتر آبی و یک عدد تیغه کمکی و کاور و مکانیکال استیج میباشند و کارکرد آن با برق شهری ( ترانس داخل بدنه )
و میکروسکوپ میکروفسیل دارای ترانس جداگانه میباشد
میکروسکوپ های پلاریزان دارای 3 ابژگتیو و میکروسکوپ میکروفسیل  5 آبژکتیو دارا هستند

این پکیج دارای 12% تخفیف خرید و پرداخت آن  با شرایط آسان  میباشد
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