This microscope is very modular. The central component is the drawtube with focusing mechanism. The body of the instrument is fitted with a long 1 inch diameter threaded flange which is supplied with a locking ring. The thread allows the microscope to be attached to various Gaertner instruments, such as the precisions cross slides, instrument bases with cross-support arms, among others. The rack and pinions focusing has a range of 38mm. The nominal optical tube length of the microscope is 160mm.
Eyepieces are supplied with matched eyepiece adapter tubes so the optical tube length is maintained when switching eyepieces. The tube adapters are usually fitted with spider cross lines and therefore no attempt should be made to clean them! These microscopes are all fitted with the standard M250-242 adapter tube with 90 degree spider lines. The ocular is a type M242 Ramsden 10x, also standard.
Gaertner objectives are continuously threaded over their entire length (RMS standard thread) and have a locking ring. The continuous thread allows precise adjustment of the magnification ratio of the instrument when using micrometer eyepieces or filar eyepieces. Focal length of the objectives supplied with these instruments is 32mm (Gaertner part number M220).
As outfitted, the instrument has the following characteristics:
� 40x total magnification.
� 38mm working distance
� 2.75mm diameter object field
An optional component, the image erecting eyepiece adapter, may be installed instead of the eyepiece adapter tube. Depending on the adapter chosen, the eyepiece angle can be either 60 degrees or 90 degrees from the microscope axis, and an erect image is obtained due to the use of a special roof prism. Due to the extended optical tube length of the prism, the above characteristics would be slightly altered. We have these adapters listed elsewhere.
These microscopes are in good condition. They are in excellent mechanical and optical condition. Cosmetically, they show some evidence of use and may have minor alterations that do not affect typical function of the instrument (such as the addition of a tapped hole in the body tube).
Photo set 1388..
BMI Surplus, Inc. has a huge inventory of new and pre-owned Metrology Equipment 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 M101A/M242/M220
***OEM Gaertner Scientific
***SKU*** 21417