MicrobeHunter.com Microscopy Forum

Looking for:
1) Zeiss GFL/WL trinocular head in good optical condition.
2) Trinokulartubus for Zeiss Citoval 2 / Technival 2.

Thank you.
Regards.

I'm glad to hear it's in good optical condition. A nice stereo is a bit of a gamechanger, so easy to use without any specialized prep. The only "surprise" for me was, that you have to move specimen by hand. Microscope comes with 100 quite big and thick slide glasses. Not sure how to use them. I fee...

Got Citoval 2. Looks almost not used. I am impressed by optical image. Very clear, bright, hips of magnification power. Very happy overall, as this might be more useful for my current hobby than even compound microscope. Main practical interest is to distinguish between fungal and not fungal problem...

Ordered Citoval 2. Not sure if it is the right choice, but that's a top of my budget and I need a tool for my hobbies. Could try to find MBS-10 in good condition but preferred this one for some reason. Not sure how to check in in post office. Plan just to put money bill under it and try to focus. Pl...

Just got pictures of Citoval eyepieces. Is that a problem, that they are not 10x?

Found an Olympus with transmitted light base. Is it a good microscope? Cost is 250$.
https://www.olx.ua/uk/obyavlenie/mkrosk ... 5a78c4c2b6

Thank you.
Regards.

MicroBob wrote: ↑

Sat Jan 02, 2021 12:10 pm

You're still confused - the adapter connects the camera lens with a microscope eyepiece.

Mistyped, sorry. Words objective and ocular still sometimes interchange inside my head.
Will stick to terms microscope objective, eyepiece and camera lens from now.
Thank you.

Got it. Adapter screws on to a camera lens with one end and fixes microscope objective with another end. Was confused with first picture - it appears that camera is closer to an intermediate image location (seemed like no eyepiece there). My Sony NEX-5n has longer objective (with 3x zoom). Will it w...

MicroBob wrote: ↑

Thu Dec 31, 2020 3:33 pm

I use a few microscopes parallel to each other. Fot this is is convenient to use a lightweight DSLM that is directly connected to an eyepiece.

So you use short DSLR objective lens instead of a microscope eyepiece lens? Does it work for both - stereo and compound microscopes?

How you take pictures from m700z ? An adapter to one of the viewing tubes?
Do you think, optically it is better then Citoval? Price is higher...

Here are some other options. Seems that this person buys stereo microscopes used from States, services them and sells. He is in the same city as I, so can check in person.
https://microscope.olx.ua/
Sorry previous link was incorrect

For me a stereo microscope is most useful in the range 7-40x magnification and just for observation, not photography. Why stereo is bad for photography? I do not pretend to make photos for esthetics on such a budget. But it will be useful to have a picture for sharing/discussing on the internet. My...

Thank you. Very helpful, as I am doing my first steps in understanding stereos.
Is there any popular hobby oriented articles or websites on stereo microscopes? Maybe a list of models, that are worth buying / practical in hobby use?

It looks almost not used. Has 2 light sources - 1) lamp on an arm and 2) box with two fiber light wires (not sure whats the right name of those). And a stative I like that it is a modular zeiss device, that can be upgraded to 3rd ocular for camera. Only other trinocular stereo microscope on local ma...

How to check misalignment ? Looking in both oculars, then in each one individually?
300 usd

On pictures it looks like it is in good condition.
How can i check it remotely? If owner has no experience with microscopes?
I would be able to check it in post office before paying for it. What should I look for if I have 5-7 minutes?

Thank you.

Hello
I found a Citoval 2 stereo microscope for sale in good condition.
According to manual it seems a fine modular stereo microscope with very high magnification possibility. Up to 100x-300x.
Can someone comment on that model? Maybe someone has experience using it?

Thank you. Regards.

viktor j nilsson wrote: ↑

Sun Dec 13, 2020 10:23 pm

One thing you can try is to raise the eyepiece a bit, and lower the camera. This way you can get a lower magnification while maintaining parfocality.

Forgot about parfocality. Thank you for the link.

75RR wrote: ↑

Sun Dec 13, 2020 6:31 pm

You may be overthinking/worrying too much about the cropping.

Got your idea.
Just a theoretical question. If photo tube will be shorter that "OM-Mount Photomicro Adapter L". Will the image be still in focus on the camera or not in focus? If yes, than making shorter tube should remove crop effect.

Than you for the advice. Still a little bit frustrated, because do not understand how camera adaptation should work. I see this option. Which uses regular eyepiece: https://www.ebay.com/itm/Olympus-BH2-to-Sony-ILCE-or-NEX-T2-W-BH2-adapter-kit-3000-3500-5000-51000-6000/254180796676?hash=item3b2e5b290...

Maybe i am not right about microscopes for kids. Even a bad tool is much better than no tool. And it might reveal kids interest
I had only a big magnifying glass. And most interesting for me was to burn things with the sunlight.

Why is interest in HAM radio dying out? Are there not some clear parallels? HAM radio is eaten buy much more powerful communication thing - Internet. Maybe hobby microscopy is eaten buy research labs. But research labs are working mostly on things that are profitable. And there are not so many of s...

BH2 is much more popular, as I understood. But I am trying to find a microscope locally first. Shipping of something that big is problematic right now. Local market is quite small. There is a cheaper PZO option. But I like that Olympus is well documented. Should be easier to learn technical aspects....

Is it worth trying to find Super widefield head and eyepieces? Are they more pleasant for eyes?
Do i need dark field condenser for the dark field, or can just add a patch to an existing condenser?

Thank you.

Hello. I am looking for a microscope for under 1000$. With possibility to mount Sony NEX5n camera on top. Found an Olympus BHA which looks and presented as a microscope in good condition. It is listed for 785USD now. But it misses trinocular head. Which I will need to purchase separately. I want to ...

nikopol wrote: ↑

Sat Dec 05, 2020 1:46 pm

i am starting to think of seeding it and trying all my meds on it.

Ouch, just found out that seeding bacteria at home is dangerous. Bad idea.

It does not have a fixed lens. I use a next generation version of it, also with an E mount and couple the bayonet on a d.i.y. adapter to the trinocular photo tube. I've used the same arrangement on a binocular with a coupler that clamps on the eyepiece tube. I can capture the entire f.o.v.. Entire ...

Thank you. Very informative. I will not use bleach on a microscope I think, maybe first time on very exposed parts. Will use 70% alcohol. I made a box with 70 Watt UV lamp inside. I know that it is very harmful to eyes and even skin. Even plastic, rubber, paints. etc. But should do no harm to thinks...

Will calm down my wife about Cholera. And will promise to clear all potential smallpox and anthrax=). Will 70% alcohol do all the job? I like chlorine (wipes molds), but that might damage the equipment i think... During Covid I bought powerful UV lamp. Hoped to sterilize respirators, but it does not...

So, try to find out the history of the equipment and clean/disinfect it without damaging. Understood.
My question about fungus in objectives was not about getting sick of it. Just curious if it happens.
And how to remove fungus from inside of it? Taking objective apart?