MicrobeHunter.com Microscopy Forum

Do you have the Spencer 1930 catalog? Thanks again.[/quote] Yes; It is almost identical to the 1929 catalogue. A few models are pictured with enamel parts ,instead of brass and they have made an effort to show parts that are chromed with a different kind of shine than those that are brass. A few mod...

Charles. Microscopes are sold as stands. Everything except the stand are accessories, that are designed to fit the stand and usually many stands. This helps the economy of scale in production. If you go into the 1929 catalogue, which you already have access too, look and see how many binocular heads...

That one was the smallest stand they made prior to w.w. 2, that they considered a research microscope. I had a discussion with the curator of the Harvard Scientific Instruments collection about a year ago, related to this model microscope. They have one they catalogue as a #4, which due to the more ...

I did a quick scan of likely candidates in the U.K. and there is a Baker Interference microscope on ebay.U.K. for L 345.00. Has an original mahogany case, 6 objectives, manuals. If I lived in the U.K. , I would buy it in an instant Those are a version of D.I.C. but perfectly convertible for bright f...

Very true.... Amscope has worked at developing a great reputation.... Amscope stands are used worldwide in all settings.. From hobby to clinical research... I live next door to a large city that has a sales office for all of the big 4... All of this talk about China microscopes has been covered in ...

The big four only have their entry level microscopes made in China and they tend to charge more for them compared to unknown brands because of the name. So, yes I agree that the entry level scopes are probably on a par, with the cheaper big four microscopes but that is as far as it goes. Even though...

One thing I have seen more than I would like to have in old mics., are small areas of cement separation in cemented prisms or beam splitters. Often you cannot see it unless the you hold a light just so. That could be causing the small area of unevenness, even though the prisms look clean. Hopefully ...

One of the problems within the fray of cheap scopes, is that in order to attract buyers, the makers and or distributors often make unreasonable claims about their capability. They know better but the lure of hooking a naive customer is just too great. For centuries, optical science slowly discovered...

Yes; I can see that possibility. This brings up a whole other question , though, that has been stammering from time to time in the back of my mind. I didn't want to hi-jack Einman's thread with it, so can I start another thread with your answer?

very classy , professional looking job. i have a couple of questions . i have been fooling around with leds for a while and my chief gripe with them is the excessive blue colour value, so i have played with yellow filtering. with filament bulbs, the opposite is true, so some degree of blue filtratio...

There you go . Great find! Looks like an SK-E. I guess the differences are that the LK-E has 70mm of focus travel and a 5 hole nosepiece. It does show the light path for the photo tube. Seems the light has to pass through a beamsplitter, for a 30/70 light division and also can be routed through a pr...

KurtM wrote:Greetings! First post on this forum. Charles, your threads have caused me to register and join in; not only is your collection just absolutely wonderful, but I see a "familiar face" here too, I believe. Hi, Phil!

Howdy, Kurt. I recognize your diatom too.

I love those! , especially the ambidextrous condenser focusing. Looks to be lovingly brought back to life too. There is a 110v. understage illuminator on ebay for that , if you are interested. They are 15 watt, if I recall and work very well, with bright even illumination. Are those, Cat. # 146 eyep...

..it would be good to be getting a proper iris diaphragm in that thing. cobbled together microscopes are inevitably annoying. i was beginning to wonder when the duct tape was going to be unveiled. look straight down the photo tube on low illumination( apparently that's all you have right now?) and m...

] So what does the long cylinder that sits above the field lens do? That confused me.[/quote] I am not 100% sure Gekko but: the glass below it , doesn't appear to be a lens, just a dust guard. That upper lens is centerable and appears to be focusable too, so it would seem to be where they have put t...

Kohler illumination was simply the first system that overcame the problem of the unevenness in the illumination field caused by either too small a gas flame or a flickering flame. With daylight it is unnecessary. The idea was timely because the primitive tungsten lamps that superceded gas flames and...

Astyanax, Thank you for the updates. I have to go now, but a quick note: it occurred to me that you can solve the problem by using a mirror over the field lens (I think you can/should remove that cylindrical part iwith optics that sits over the field lens??) and get one of the excellent old microsc...

The field diaphragm ( washer in your case) and specimen image plane should be be the same for kohler illumination, so imaging the imperfections in the top lens means you didn't have kohler illumination at that point. I wouldn't worry too much about it anyway,just get rid of them by defocusing becaus...

I wasn't aware that you did have a good microscope in your possession. My initial reading was that you were using a Vanox at work . I cannot see any reason to believe that you would benefit from the purchase of an average grade Chinese microscope over a repair and refitting of that Zeiss. Chinese op...

My guess would be that ,rather than a microscope, it is an old optical delivery device. Possibly it was used to deliver a special purpose illuminated image or beam. The little peephole was used for testing registration.

Spencer did reuse model numbers but only usually after quite a while, when the earlier incarnation was clearly discontinued and also usually, when there was a distinct and evident difference between the two. There also was an earlier series 2. series 4, series 5, series 10, series 15. The series 5, ...

Welcome, Phil...I so enjoyed your shareing the path of your microscopy...thank you so much for that! I am eager to share some of your plankton microscopy world views in this forum. It sounds great that you have adopted a sense of place involving a specific body of water. For me the linkages between...

I've done a lot of repairing and fabricating of parts over the years for microscopes. I can try to help. If you post or p.m. me some pictures of the broken part and how it works in the illuminator, I can likely recommend a solution. Glued plastic , whether heat proof or otherwise ,often is only a te...

Sorry, to pipe up again but my interest is in helping. When I look at a photograph taken through a microscope , I judge it based on what can be done with a point and shoot camera available to anyone, through an eyepiece that may or not be clean , hand held and done with a minimum of fuss. If an imag...

The #13 was the basic body they built their lab microscopes around. It had a high fine focus and was a reasonably weighty cast iron instrument. On that basic frame , applicable accessories could be placed. They catalogued specific packages, such as a Brewmaster's microscope,a Mold Count microscope, ...

Great little stand , in terrific shape. That's a series # 3. When they brought out the low fine focus, around 1932., the older high focus research stands lingered on for a few years but were eventually shelved. The series #3, and the considerably larger and heavier series #5 became the workhorse res...

It appears to be a type of Petrographic Microscope to me... And a very well made one!... No, the objectives are corrected for .17 coverslips. This is a biological microscope. You could purchase a plain square stage, with spring clips, a square mechanical stage with separate x and y controls, a squa...

One more picture.

This microscope was , along with the # 14 , Spencer's premier research instrument during the 1920's. It morphed into a chrome plated version with an optional inclined binocular before it was replaced by the # 5 in the early 30's. There were several features of microscopes that experienced microscopi...

I've bought a lot on ebay( hundreds of transactions) and have rarely had a problem. Yes, that takes some observation and diligence. As in buying any thing else, you have to ask questions. If the answers don't come, don't buy. American Optical, Bausch & Lomb, Leitz ,Olympus, Meiji, Nikon, PZO, Reiche...