MicrobeHunter.com Microscopy Forum

MichaelG. wrote: ↑

Sun Mar 17, 2024 10:27 am

https://earth2geologists.net/Microscop ... ctives.pdf

Thanks. This is a good overview of that Olympus objective series.

I'll probably first look at the Leitz Labovert line of 160mm tube length objectives. They may provide the best quality/cost ratio.

I think there was a special Plan Apo series made for the Olympus IMT-2 and these had a longer working distance. However, you are right that this is crucial and needs to be verified. … Having just started my journey in the opposite direction [ bought an IMT-2 yesterday ], I will post links, later to...

The direct successor of the Diavert was the DL IM. First under the Leitz brand then Leica. Under Leica brand it made the change from finite to infinite optics. The Labovert was a very special animal standing separately. When using Olympus objective the fitting Olympus eye-pieces will give best resu...

Hi people, I was recently looking for info on the Wild M40 inverted microscope, one of which my university unit still has for field course teaching purposes. That scope has not been maintained very well and is obviously very long in the teeth. Anyway, on that googling trip, I bumped into this articl...

The Polyvar DF condenser would have been a toric type and possibly with a wider front toric lens than earlier versions, for instance that used on the Zetopan, which only had an 18mm f.n. However, in order to save the cost of design and patenting , they might have split the DF function in two and us...

There's an estimate in this thread that some models of Polyvar originally cost 'tens of thousands of dollars'. Does anyone know more precisely? Perhaps find an original price list. I've read that a fully specced Leitz Aristoplan had a cost of roughly 100 000 USD. I wonder what fully specced (DIC & f...

Hello. I have a Jenaval in need of some restoring and maybe some components as well. This is a 'rescue' scope that has been in a departmental storage for who knows how long, at least a decade if not two. Fortunately in room temperature and dry air. Surprisingly, most mechanical parts seem to move, a...

Okay, in that case it is maybe best to forget the swap. I value the Wild eyepiece pairs with diopter adjustment more than this rotation device. I could have parted with two pairs (of different mag) of the non-adjustable eyepieces.

I think I have a couple pairs of different eyepieces for Wild stereos, some higher mag as well, some originals from the M8 era and even before. Doe your binocular have the diopter adjustment on the binocular tube or is a newer type without that (relying on diopter adjustment being on the eyepieces)?

Hello,

Well, I do have quite many parts for Wild stereo microscopes Which ones would be of interest? I may also have an extra cold light source.

Hello,

Which Wild/Leica items would be of interest? Compound or stereo parts or both?

Ok, I won't dig through my stuff then.

I have not done that direct comparison. However, I have several Wild and Leica stereo Planapo -objectives and have never paid more than maybe 600 euros (I think it was around that sum for the Leica 2x Planapo in extremely good condition). For 1x Planapos the cost was 300-400 a piece on average. In s...

Which one did the OP end up getting?

Had I seen this topic in time, I would have said the same thing as the above posters: both scopes are very good choices and a lot would depend on what they are equipped with, plus condition of optics. Those things being equal, can't go wrong with either

What would you consider a fair price for one of these?

I need to check if I have two of these M8 0.4x adapters. If yes, I could sell one of them.

How goes your restoration? I'm curious to hear about the progress you're making! :) It went well initially, I think I have all the parts and optics in hand now, including a functioning IK condenser. Then life got in the way and I didn't have a proper space for assembly and use of the scope. However...

Congratulations on your M10! It took me years to find my first M10 so I know the feeling. You have a nice setup. It's nice to know someone who could do some custom machining to make your adapters. You mentioned that you have a "Wild/Leica filter slider unit for stereos". Do you have a part number f...

That all tracks. The reference focal length of the m3z is 100mm, so 2x is going to give you a 200mm tube lens focal length. Incidentally I have an optem 10x/0.45 HR objective which Leica rebadged for use on their macro/stereo fluorescence setups (z series macrofluo and the fluocombi, the descendant...

Is thr spacer for the objective permanently affixed? I'd be tempted to pick up a longer parfocal objective with a larger field of view like this RMS mitutoyo clone from Seiwa https://www.ebay.com/itm/175059560631 Wild stereos are essentially non-compensating so a neutrally corrected objective will ...

Update: the 1.5x achromat is not a good match. It has too short a working distance: when in focus, the compound lens front element comes extremely close to the subject! Definitely not good, and is not close to parfocal either. The best match is a standard 1x achromat which is close to parfocal. It a...

Thanks for the tips guys! Like you said, it was an easy and straight forward job. Now swapped. As I expected, Kombistereo really does not work with a 0.5x achromat stereo lens. The compound lens, which is a Leitz Plan L 25x/0.40 infinity, is "antifocal" with that, you have to scroll the focus for ag...

Well, I tried but this is as far as I could get.

The cluster of screws in this first image seems a bit daunting. I have no idea which of these could/should be unscrewed to get further without causing problems.

Hello, I would need to swap a Wild M3Z optics body from a Type S carrier (the one that provides axial option for photography) to a Wild Kombistereo carrier (the one that switches between a normal stereo objective and a Leitz compound objective). However, I can't see any apparent way how to detach th...

Hello, I am looking for the two eyepiece tubes that are screwed onto the binocular head of a Wild M5A stereo microscope. I am also looking for an objective for a Wild M5A. Maybe the objective for the previous iteration, the original Wild M5 in beige/yellow paintwork is identical with the M5A? To mak...

I'd carefully try to remove any remaining grease and wd40 residue with petroleum ether or lighter fluid before relubricating. wd40 is likely to kind of resinify after a short period. I am using synthetic watch libricants from moebius. For the rods i even switched from using grease to thin oil (Synt...

You may want to look into the Microscopy courses offered at Woodshole, Mass and Cold Springs Harbor, in New York. These are high level microscopy courses with extensive support from the big four manufacturers including manpower to support workshops and instrumentation. Of course, this give the comp...

You may want to look into the Microscopy courses offered at Woodshole, Mass and Cold Springs Harbor, in New York. These are high level microscopy courses with extensive support from the big four manufacturers including manpower to support workshops and instrumentation. Of course, this give the comp...

This is always a good idea. To what magnification do the stereos take you? The StereoDiscovery.V20 goes to 225x but we also have the PlanApo S 3.5x mono attachment for it, which takes mag to 525x using the 10x/23 eyepieces. Probably quite a bit of empty mag when you go that high. On the revolver, t...

Inverted scope and sample cleaning and preparation? Actually, the Olympus IMT-2 is an inverted scope. But sample cleaning and preparation is an important topic to cover. Or did you specifically mean sample preparation for use on an inverted? I would be specific for sample prep for inverted. Yes, I ...