MicrobeHunter.com Microscopy Forum

Anyone else have an idea on what would be a good price for this microscope? Sorry, but this is a real How long is a piece of string ? question Look at some Leitz prices and you will soon realise that one objective could be worth more than another complete Laborlux. … it all depends [in great detail...

Forgive me if this is a ‘Red Herring’ but those sliders look remarkably similar to the ones for the Olympus IMT https://microscopecentral.com/products/olympus-microscope-40x-phase-annuli-for-40x-objective-imt-rs40 https://www.alanwood.net/downloads/olympus-imt-manual.pdf I believe these were offered...

Try this as a search for suitable replacement switches:

https://uk.rs-online.com/web/c/?searchT ... ton+switch

The left side-bar on that page will let you refine the search

MichaelG.

Very impressive, Franck
… You obviously have that bench well-sorted

MichaelG.

Many thanks for the clarification, elaniobro

… All’s good
.

… I blame Oympus, of course, for re-using a name !

MichaelG.

This would also be for my OM-1 camera system which is a Micro 4/3 lens. Please excuse me for coming late to this discussion … I have read trough the previous posts, and this statement leaves me confused. If, as you confirmed yesterday, your OM-1 has a mirror … then it would surely be the original 3...

As a disinterested observer [which is not the same as being uninterested] … I would welcome the open discussion that charlie g has invited. The forum exists as a learning and information-sharing platform for all of us … so let’s all see [and perhaps contribute to] the technical aspects, please. Mich...

Nicely done
… and an important reminder that the pretty structures we usually admire are only their skeletal remains.

MichaelG.

It doesn’t answer the question explicitly, but your will find 17 occurrences of the term here:
https://www.iso.org/obp/ui#iso:std:iso: ... :sec:3.1.9
and collectively they explain.

I am posting that link because it’s very rare to get a freebie from a Standards Organisation !

MichaelG.

I think tis probably gives the game away: https://www.fishersci.fi/shop/products/condenser-achromatic-lwd-ba410/15425302 The long working distance facilitates its use with phase contrast accessories MichaelG. . See also: https://moticeurope.com/en/lwd-achromatic-condenser-na-065-wd108mm-with-iris-di...

It is quite good and covers full frame sensors if I remember correctly, assuming one shoots focus stacks, because it is not plan. It was actually my exact LOMO 3.7x that RobertOToole tested and praised, after which the price went up dramatically. Congratulations !! I was looking back at his reviews...

The mystery deepens
… this ebay item has a “plano-convex” egraved on it
https://www.ebay.com/itm/395033242941

I admit, I am lost !

MichaelG.

Hello. Thank you for this thread. Can someone suggest the meaning of the following symbol on a LOMO water immersion objective? IMG_5630.jpeg Thanks. At a very wild guess, I would say it’s a simple biconvex lens element ! … but I hope that’s not valid What other markings are there on the objective b...

I keep returning to < Difflugia brevicolla.jpg >

All of the images are wonderful in various ways …
but that one somehow encapsulates how little we comprehend.

It astonishes me every time I look at it.

MichaelG.

Hi, jackieone, are you located con-US? I have excellent 160mm/finite SteindorfBerlin with trinocular head, with illumination setup. very low cost+ shipping. Other scope setups too , Olympus/Tokyo CKa inverted microscope with illumination setup...$120+shipping, other scopes too. I also can supply mi...

I am stunned that MichaelG required snail-mail postal from 'UK-eBay'. charlie g Not actually from ebay, charlie g The snail-mail arrangement was imposed by Tesco Bank [the supplier of my MasterCard] They posted a special letter, with a tear-off security layer embedded … this revealed the six-digit ...

I had a similar problem [U.K.] when trying to set-up my Tesco Credit Card on ApplePay Tesco will only send security codes by SMS … unlike PayPal, who will make an automated call to a land-line. It took a couple of weeks to sort out, because they insisted on sending me a physical letter, by Royal Mai...

Beautifully shot … and very well-observed.

You are clearly ‘in your element’

Thanks for sharing it.

MichaelG.

More detail from Leitz >> less comprehension This, from one of the Heine Condenser leaflets is “interesting” . source Right.jpeg . All I can say is that the 63x is a very pleasing objective to use … its working distance is longer than that of the 10x … and the resolution is all one could reasonably ...

Strangely enough … I recognised the name, from an enquiry that I made in 2021 They were offering an interesting USB 3 camera at the time [before most others had made that leap] … it came to nothing, because of shipping arrangements, but I remember them being helpful and courteous. MichaelG. . . Sent...

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Beautifully done, hkv

MichaelG.

. Thanks for the further replies … I now need to expand upon my original question What design of eyepiece, on what instrument ? As originally stated: although the lower lens element works as a very nice ‘magnifying glass’ … I haven’t found any setting where the complete device will achieve focus ! …...

A friend on the Model Engineer forum has just posted this video … which I’m sure will be of interest to microscope restorers and customisers.

https://youtu.be/y6BXE4uDW-Q

Happy experimenting !

MichaelG.

Thanks for that … I shall investigate further

MichaelG.

I have a Nikon item which appears to be one of these: https://www.ebay.com/p/3037734298 https://www.ebay.com/itm/275027711597 Unfortunately, I have no idea what it is intended to fit … and strangely, although the lower lens element works as a very nice ‘magnifying glass’ … I haven’t found any settin...

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In principle, the radius of curvature of your cleaning tool needs to be equal to, or less than, the curvature of the lens surface.
… In practice, this is getting worryingly close to being “a pointy thing” … so the answer is with great care and considerable finesse.

MichaelG.

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A great success story … and a mystery solved for me !

I had often wondered what connection there was with the Royal Air Force

MichaelG.

Thanks … I accept all the opinions

My point [badly made] was that there is a “Zeiss” microscope for which cheaper compatible Chinese objectives might be available.

MichaelG.

Yes, I realise that … but it doesn’t stop it being a Zeiss product.

the affordable range of Zeiss microscopes

MichaelG.