MicrobeHunter.com Microscopy Forum

Kohler himself used cardboard with holes cut in them. It seems also like you could focus on the frosted glass and then simply move the condenser up about 10mm or so.

Some of those Galen objectives are really quite nice. The condenser is tough to track down.

Bausch and Lomb presented an inverted scope in the 19th century. It didn't really catch on right away and they stopped making inverted scopes until the projection scope design from mid century or the I think Photozoom a little while later. They also sold a few inverted metalloscopes now and then tha...

If I ever get it working I might try to post a video of a 'tode whipping around to demonstrate the shutter system. Until then, I'm out two cameras.

So, after having used the Pi HQ camera for a couple of years, I of course bought this one. I can say that it seems like a decent enough camera, but I would recommend against it. There is essentially no software to run it that I can find anywhere, just a thousand supercilious dweebs whose advice is m...

I think you will likely want the compensating eyepieces 167 or 168 with that one, or perhaps the planoscopic.

Now a 60x immersion lens, that's a good lens

That's a cool little scope there and some decent lenses. Should give good images.

I may have some bad news if you are hoping to keep your home mite-free.

It is important because after an NA of about .66, small differences in cover glass have comparatively larger effects in the quality of the image. It's highly nonlinear, such that to use a cover glass at all with a "high dry" objective, either very precise regulation of the thickness of glass or a co...

If you have any Hammond organ oil that stuff will work its way through any tiny gaps and wick into crevices, loosening hardened grease. Sewing machine oil also works pretty good-- would not recommend 3-in-1 as it gums up.

Maybe an airbrush of the kind model-makers use

Butterfly scales are good in line with the mosquito wing

I believe it and am always in favor of empirical investigation of new techniques. In fact, the limitations of hwd condensers has prevented me from doing a lot high power work on the old invertoscop, so I would be interested if you find success with this approach.

Ok then well a protist will also have more height when crawling along the bottom of a dish. We're talking fractions of a micron when using immersion objectives

As to your first thought, in fact anything involving micromanipulation at high power is far better on an inverted scope. The problem is not "lack of slip" or "lack of slide." You can certainly use both on an inverted scope. The problem with oiling up a slide on an inverted scope is that the oil is ...

Could it be adhesive?

I can't think of an application that a high power immersion inverted scope that wouldn't be much better treated by car ful isolation and preparation of the sample to be viewed with a usual microscope. These high power objectives require so much delicacy and the right conditions. Right away I'm thin...

Currently on that.zeiss I have a condenser fork made.from.mdf and the light source is an led and spare condensing lens I had lying around. I like doing that kind of stuff but it's.more.forgivimg on the lower powers

I have an old Zeiss optin-era invertoscop and a few things a like about are that it was very cheap and also I don't feel bad about changing stuff on it as it is not a work of art. A bad thing is rhat Zeiss stuff of many eras often falls apart with age and that includes the prisms in the heads of the...

Is the choice of potassium hydroxide over sodium hydroxide just a matter of waiting time?

If it's in good shape and has all its original parts, so none in my collection

Either way that would le.gthen the tube. Infact it's simpler for finite as it's very obvious that you are change the position of the objective with respect to the eyepiece. In infinite systems there is a reference length but it's my understanding that objective performance will not suffer from chang...

An inverted scope is most excellent for someone that would like to observe a.habitat. an aquarium can be made by epoxying a large cover slip to the bottom of a plastic petri dish with a hole drilled or cut in the bottom. Pond water can be put in and the inhabitants can be kept alive for a long time ...

Wet scrubbing clear glass with a high grit (800+) sandpaper can produce adequate diffusion. Do it by hand and do it outside!

Love the concept of those old unitron fixtures. Some bright LEDs could be just the ticket

These are most excellent

Yeah they're neat!

A condenser might make it a little brighter, but I doubt it will help the resolution too much. Toy objectives are not great. My experiments with toys and condensers could never make great images. I wouldn't bother trying to supe up a toy. You'd end up replacing every piece, and by then you should ha...

nice scope