Info on old Spencer objectives
Hello all. I'm hoping that someone can give me a little info on two
objectives I have. Both are labeled AO Spencer, and Made in USA. One is
chrome plated, labeled 2X, and has no other marks. The other is raw
aluminum, or a similar appearing metal, 3.5X, and NA .09. Neither has
the infinity-corrected logo. Can anyone tell me what the tube length on
either of these is? Any other info on them is appreciated.
.
Relevant Pages
- Re: Zeiss objectives - which oculars
... E. Leitz's NPL series of objectives were great! ... An infinity corrected microscope has an objective designed to produce an imaging beam in which the light is parallel. ... A positive tube lens, sometimes called a Telan lens, is imposed in the microscope tube to bring the beam to a focus at the intermediate image position. ...
(sci.techniques.microscopy) - Re: Zeiss objectives - which oculars
... An alternative would be a find an older & 'cheap' Zeiss stand, and to find suitable 10x & 20X to complete the setup. ... I also don't think they are all Zeiss, but I'm not that familiar with Zeiss infinity corrected objectives. ... It will say something like 160/- on the side not visible in your photo, indicating it is designed for use in a 160mm tube length microscope. ... I was about to suggest you try the low-power objectives on a "wrong" scope and see, but on closer inspection I see that the infinity objectives have a wider mounting thread, so you can't. ...
(sci.techniques.microscopy) - Re: Tube length
... Joe Rat wrote: ... > I noticed that while a tube length of 170 mm. ... objectives and would ... image when "crossing" tube lengths. ...
(sci.techniques.microscopy) - Re: Entrance Pupil Microscope Objective, Now what about the condenser?
... >> Must the condenser be somehow telecentric also? ... Between the objective and the so called tube lens. ... telecentricity in object space appears to be a property of all ... microscope objectives where as infinity correction refers specifically to ...
(sci.optics) - Re: Tube length
... > Joe Rat wrote: ... >>I noticed that while a tube length of 170 mm. ... objectives and would ... Of more concern will be getting the long Leitz eyepieces in some ...
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