MicrobeHunter.com Microscopy Forum

Has anyone tried one of these https://www.ebay.co.uk/sch/bauras/m.htm ... 7675.l2562 ?

I have always read these modifiers ought to sit near the diapragm, but in this contraption they are much lower. Isn't the position perhaps that important?

There's a rounded recess at the left, below where the plug is on the photo. I guess it is meant to sit there with the tube between the foot and the table, and the lamp is not part of the original package. The case is an interesting concept in itself: Each cover has four holes through which bolts go ...

I am selling an (incomplete) Lomo MBD-1 microscope no. 693029 enclosed in a sturdy metal case. The removable head has been removed and is missing. - achromat objectives 8X/0.20, 40X/0.65, 90X/1.25 - 3 eye pieces (7X, 10X, 15K), the latter with larger exit lens - x-y stage (CT-12) - lamp house 220V (...

Now focus stacking is a standard procedure this is no longer entirely true. I am getting xcellent results with the procedure as described.

If your microscopy doesn't need correcting eyepieces then you do not need any lens in your photo pathway. No lens is always better than a cheap lens and possibly cheaper too. All what needs be done is to catch the primary image on your sensor. The primary image is located near the bottom of the eyep...

Used Photoshop to stack and add image of flower to pollen image. Scale, measurements and other text generated with Micam software. Identification of flower with Plantnet app on mobile phone. Take a photo of the plant and the app offers a number of images to identify it (with my photo it was three ,...

Here's an example, reduced for upload, but un-cropped:

Well done!

It is quite large enough though centering is critical. The height of the image is nearly identical to what I see by eye, but of course the width is 1.5x wider. I made a mistake ordering the dovetail 0.5mm too small so mine is a bit off center. I use it with Canon APS-C; I am not familiar with the Ni...

Hi Ivan, I made one, though for a different microscope/camea combination. But that should not matter too much, important is that when your camera is APS-C and the microscope has no colour correcting eyepieces, you can do without a relay lens, which makes everyting much simpler. My solution is descri...

It's the ridiculously cheap, and very effective, ebay item that I have recommended several times. I will find you a link MichaelG. Thanks. I know these and even may still have a couple of them somewhere. Only I never read that name before, nor did I ever see them in conjunction with my microscope. ...

Is the 'led mini-bulb dome' described in detail somewhere?

AFAIK, there are no theoretical objections to using condensers foreign to the brand of your microscope, unless they come along with custom above stage equipment (the phase rings/objectives were mentioned above). But there's also the issue of physical fit. However, if you know your way with e.g. 3d-p...

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De Nikon Optiphot uses 45mm filters at the lamphouse. These filters are quite hard to find at all and bl**dy expensive when they are offered. For special applications they still may be worth it, but I think a simple ND filter or a blue color filter don't need expensive technology. I tried cutting fi...

Any other freshwater meiofauna students out there? Quite some years ago I worked with free-living nematodes. To say 'freshwater' would be to stretch the truth, for it was in a fresh to marine transect, so mainly brackish water. All these years since, I haven't looked at them again. But since a coup...

There has been long-distance trade in pots for at least 2000 years. So unless you have found the dump of a pottery, how can you tell where the fragments originate from, if the basic ingredients also could be imported frome elsewhere? My not-to-be-trusted assumption would be that clay is the product ...

Have a look at this video: Understanding the Light Microscope by Peter Evennett https://www.youtube.com/watch?v=60_jgZtyR6U The whole video at 1 hour and 18 minutes is well worth watching (should be a requirement for all amateur microscopists) the section on Abbe's Diffraction Experiments starts at...

Thanks for al your replies. Part of it I understand, but still not the whole story. But you have given me a number of links that I will read thouroughly tonight. Hold on...

Wim

Is there a verbal explanation why higher apertures result in better resolution? I mean, the maths is clear enough, but why can a wider cone of light resolve smaller details?

Sorry I am too late

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(The plate unscrewed indeed releases the fine focus block. It shifts upwards until it hits the arm:)

You can always tell spring has arrived when the horsetail men are dancing in the garden

How do you do that, making a thread in such large diameters? I tried a while to do it for the M50x1 of the Mz7.5 objective, but I wasn't succesful.

I have an old Wild MZ5 and it is 'the same' as the Leica MZ (other than the zoom system) so guess it is from when they rebranded.

I am actually using a black Wild photothube on an MZ7.5. As far as I am any judge, only style and colour don't match.

This is one of my first attempts to use the 1950 Lomo OI-2 darkfield condenser substage a Nikon optiphot. It's a wet condenser and I use it with glycerin. Sometimes it works very well, bright subjects and a nice black background, but often the field is uneven, with bright/black areas and with black/...

I also managed to persuade the block to move up a centimetre by whacking it with the handle of a screwdriver.

I can see you are a true fine-mechanic!

First a correction: I said the axis and knobs stay in place and the nut moves. They don't. The whole axis is moving sideways (just like you observed) and the nut is a disk fixed to the axis that pushes the lever to the right. The lever directly lifts the stage, which comes down (by gravity I presume...

It's hard to see without the possibility to move around. I think you have there the remains of more than one dead body clung together. The spiny thing might well be a wing. Small insects often have hairs extending from a central stiff instead of glassy wings. Thrip could very well be the correct sug...

It's hard to see without the possibiity to move around. I think you have there the remains of more than one dead body clung together. The spiny thing might well be a wing. Small insects often have extending hairs instead of glassy wings. Thrip could very well be the correct suggestion indeed. Altern...

From the outside, this looks like the same mechanism that Euromex used in that period (and perhaps still does). The fine focus block moves the stage, the coarse focus block moves the fine focus block, and with that the stage. The coarse focus drives a rack and pinion (I believe that are the English ...