MicrobeHunter.com Microscopy Forum

Have you ever read much Mark Twain? One of his unfinished pieces was something with the working title, Which Was The Dream?, which was a story that involved the shrinking of a man and his family down to microscopic size and being placed in a drop of water, on a slide, under a microscope, in a dream....

Do you suppose he can see your eye looking back at him? (Yes, I know it is a camera looking at him, but that's beside the point.)

Jim

So, I was using my microscope,................... While using it, I was attempting to use the 100x objective lens, with a 10x eyepiece, and I put a drop of oil on the glass cover, and attempted to focus. Yet, I couldn't get it to focus right. So, I'm very confused why. Thanks for the help! Hello: Y...

Hi Charles I have probably a luxury problem, because I have both types condensor, but not the time to test them properly, family and work takes time. I have a Zetopan to Polyphos condensor, and it is not always easy to use, you should be aware if you buy such, that the front lens can be unclear, I ...

Hi, Pat. I've not viewed many micro-videos before, so that's the first video I've ever seen of a tardigrade. I thought it was very good! I can understand better now why they are called waterbears. In fact, I believe I could even discern what looked like bear claws! If that is one of your first video...

What?! Oklahoma is still there? Given all the bad weather of the last few weeks, I'm surprised, but I suppose it has endured worse at times.

Anyway... welcome to the forum. I'm sure you'll find that you have much in common with others here.

Oh, and chilis go better con carne.

Jim

Maybe mine is not 328F? I was told that it is likely a 328F. Though we don't know for sure. I tried that condenser on my AO series 4 again this morning. It fits tightly on 4's dovetail - I was not able to move it at all, once holding screw on my 4 has been tightened (there was no visible movement n...

Fantastic thanks! Only trouble is I really am flying blind here................................ It's one of a selection of best of the cheapest I can afford on ebay - I'm in the north of Scotland not many chances to go view the goods. :roll: Allthejunkgenes, If the microscope in which you are inter...

Additionally the review article - if one scrolls down - mentions several other illumination arrangements. For example other Watson models are powered off line or mains voltage and require a different bulb: 25 watts at either 100-120 or 200-250 volts. Still another - with the rheostat built into the ...

Allthejunkgenes, Hello! And welcome to the forum. The link above reviews the Watson 70 microscope ( http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/artdec09/iw-watson70.html ) and shows several photos of the bulb needed for it. According to the description it is...

Mine is a catalog number 328 according to the certificate that came in the box with it. It is in one of the older leatherette covered cases, so it must be pretty old. I suppose it could be missing such a lens as you speak of, but there really doesn't seem to be room in the body once the bulb and soc...

Well, Fan, if you have tried the condenser on your series 4 scope and it fits as you say, then I'll just have to accept your word for it. :D But it certainly is a puzzlement to me. Only explanation I can think of is that the dovetail ring on yours is actually larger than what it appears to be in the...

Fan, If the condenser you show in the photos is the actual condenser, I think you will find that it will not fit the microscope models you list. The one for those models has a notch in the dovetail ring and a different size dovetail. This one looks like those made for the older Spencer scopes such a...

Welcome aboard! A microscope repair person should prove a valuable addition to this forum. (As in, "oh yes, your brain is gonna get picked.")


Jim

Hello, Stephen. Welcome to the forum.

Jim

As a general rule floaters are in the eyes themselves. Using a binocular microscope will minimize them. Also, use a scope that has its eyetubes inclined toward you at an angle so that you don't have to look straight down or lean over it - or tilt the scope; most binoculars have inclined tubes these ...

All: Be very careful what you click on at that link above. I clicked on a thumb of the first page of the pdf. and some kind of malware or ransomeware took over my browser. I couldn't even shut down the browser to escape from it, nor could I shut off the computer the regular way. I had to pull the ba...

One thing that could be nice to have are eyepieces with longer eye relief and rubber cups. Do they exist for microscopes? Oh yes, indeed, they exist. Most manufacturers make, or have made, eyepieces with high eyepoints for people who wear glasses. And modern oculars are either available with cups, ...

Welcome to the forum. That is a very attractive microscope - especially for only $70.

Jim

I have never used a binocular microscope before and it took some practice. But, when I got the hang of it started to feel like I am looking at a huge image floating in the air in front of me. I am super happy with my 70 USD deal here. Just out of curiosity: are the eyepiece tubes of the parallel ty...

Ahem. Back to topic, I would think that straight razors would be the better bet for microtome work by virtue of the longer blade, and learning to strop blades is a whole lot easier than learning to sharpen a knife on a whet stone. And learning to sharpen any blade using any method is lots easier wh...

Very good ... now go to the grocery or drug store and buy some old fashioned doubled-edged "safety razors", which, believe it or not, are still commonly available (would anybody really shave with those diabolical things in today's world?). Carefully fold one in half lengthwise, and it'll snap in tw...

Phil:

Check your email. I received your PM, but the site still isn't letting me use that feature.

Jim

I appreciate your considerateness, Phil. Yes, the 60x apo is the one I was primarily interested in, too, and the Spencer fluorite. I think I've only ever seen one other Spencer 60x apo with a correction collar before - about two years ago - but I didn't bid on it. The 10x apo will be surplus to my n...

Sorry, Phil, but they're already gone. The seller lowered the starting bid and also offered a buy-now-price that was too good to pass up - so I bought them; I just happened to be checking on the listing about 30 minutes after he changed it. I plan to keep the two Spencer apos and the Spencer fluorit...

Is there some sort of cosmic law that says once one has found a difficult-to-find object and purchased it, that several more will very soon show up? There must be. Here's another 10x apo. http://www.ebay.com/itm/Microscope-Objectives-Lot-/291723695421?_trksid=p2047675.l2557&ssPageName=STRK%3AMEBIDX%...

rnabholz wrote:Some Guys have all the luck.....

So do you have a scope for every week of the year yet?

Well, Rod, you know microscopes and their lenses do get dirty. It's always helpful to have a clean replacement already on hand when one discards the dirty one.

Regards,
Jim

Fan,

I received your pm, but unfortunately the forum is still not letting me send personal messages. I have no objection to what you ask - just let me go dig up your email address if I can find it, and I'll send you my profile info.

Regards,
Jim

I did have a 35 binocular once, that came from the factory with 4 apochromats, including a 1.4 N,A, 90X. It had a 1.4 N.A. achromat condenser and a couple of pairs of compens......all in a case. I still have the case but I apportioned the optics to better stands. The 35 ended up with a new set of S...

Glad you got your 10X Apo Jim. I was keeping an eye on that scope for the Apos as well as the mono tube and graduated stage. The bidder was no shill. I've gone up against him before on high value scopes and accessories. Thanks, Charles. Nice to know I didn't get shilled. :D Btw, did you see the bea...