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Epidermis of red onion that have come in contact with aqueous NaCl solution.

100x Magnification. Scope model unknown- sorry :( not my microscope.

Hello! My wife is somewhat obsessed with microscopy and has an antique low magnification scope that she uses, but its very janky and hard for her to take photos with it. I'm looking to get her a better microscope for her birthday, but I know nothing about them. I've asked her for guidance but she's just beginning and isn't sure what to buy.

I'm hoping for something comparable to the Journey to Microcosmos scopes that they were selling for a while. Preferably in the $400 range? If we could get additional hardware in the future to hook up her DSLRs that would be a huge benefit.

Any advice would be greatly appreciated!

I've been working on imaging some small rodshaped bacteria at x100 using a confocal microscope with a photomultiplier tube. They're pretty small, about 0.5 um x 2 um. I've tagged two proteins with fluorescent tags (EGFP and mcherry) by translational fusion. I usually do live microscopy, an image every 2.5 mins for like 6 hours to watch them divide.

Currently my time is limited because I mount my cells on an agar plug. This traps them between the cover slip and the plug to stop them from moving, it works really nicely and the plug is made from media so they have nutrients to survive. The only issue is the plug dries out and after about 5 hours, they die because the plug is dry. I've considered trying to seal it but it's extremely difficult as capillary action just pulls nail varnish under the slip. I'm also worried about oxygen as it's a long time and sealing may prevent diffusion. Does anyone have any suggestions on a better method I could try?

I recently bought a microscope that can go up to 1000x and I’ve enjoyed it a lot. There are some flaws with it like the light gets dark even at the max brightness when I go up to 1000x and the image becomes very blurry at 1000x. I also see microorganisms in water that are way to small to see clearly on 1000x. I would like to get something maybe like 1500-2000x at a 300$ and below range. Any recommendations?

Hi all, I recently got a Bausch and Lomb Academic Stereo Microscope (like this) to use for amateur/hobby watch repair. The field of view is a bit small for my use, so I'd like to get a 0.7x Barlow lens for the objective - my issue is that on this model, the objective lens is not threaded on the inside - so there isn't an easy way to attach a Barlow lens. (Edit to say: it's more like this scope doesn't have an objective 'lens' - it's just the lower part stereo head isn't threaded at the opening)

I've been looking for some kind of adapter that I could attach around the objective lens (using set screws likely) that would have interior threads that I could screw on the Barlow lens to that. Maybe this wouldn't be possible because that would change the distance between the objective and the barlow lenses making focusing impossible? But wouldn't that mean every scope on the market would have to have the exact same distance between objective lens and the threads to ensure all barlow lenses would be compatible?

If anyone has any ideas, I'm open to just about anything. I just can't seem to hit the right keywords in my search to bring up anything useful.

Which microscope is recommandable for 200€?

Hey everyone, I hope it's ok to post this question here. I'm a creative who knows nothing about microscopes but want to take some photos of something specific under a microscope (the subject is a common food item) for a marketing / branding exercise. i am guessing it would take no more than a few hours.

i haven't used a microscope since grade school and don't have any friends who are doctors/scientists, so i am at a loss on where to begin my search to find a microscope that i could use for a few hours. any suggestions on how to go about finding such a thing? i looked into renting one, but i worry that i might not be able to use it without assistance (i could be wrong), and because the city i live in is small i couldn't find any suppliers who rent scientific equipment. there are a few universities in town with medical schools, but i'm wary of reaching out to them and sounding ridiculous, since i don't know the first thing about laboratories or microscopes :D

thanks in advance for any advice! i love what you guys are doing here, your photos and videos are beautiful and very interesting!

Hi. I would really appreciate some help here. I'm considering purchasing the Observer and I would need to sell the standard plan achromat objectives when I decide to upgrade, but I have no experience and it's really hard to me to judge if this willbe at all possible. Please, can you explain this to me? How can I determine if there will be potential buyers? I suppose this includes things like parfocality and corrections but I just feel overwhelmed by the issue.

Hi everyone, I'm thinking about changing from my Canon EOS 600d DSLR to mirrorless camera. Mainly because my current one is pretty old, clunky and video recording is rather bad quality. Plus I have problems with all the attachments to my microscope. Since it has a pretty high flange distance and type of build that limits possibilities of connecting it to my stereo microscope (Bresser Analyth STR Trino).

It works "ok" with my compound micro, but I have to literally put the camera with naked sensor on the phototube as any other adapter would raise it up and I wouldn't be able to reach focus again.

I'm considering those two mirrorless cameras

Sony α6400 vs Canon EOS R50

1. Both are similar video and picture quality
2. Canon has advantage in videoes (both 4k and FHD) as it doesn't introduce additional crop, while Sony does quite significant for 4k (1.22 at 30 FPS) and slight for FHD (1.14 at 120 FPS). This plus the sensor size can make the final picture quite severly zoomed it
3. Sony can be charged via usb cable at the same time when used with PC, while Canon doesn't allow that (only with dummy battery which I have 2 now and their performance is mediocre)
4. Canon software to control camera is crap, really it's really bad, while I hear that Sony software is pretty decend.
5. Price is almost the same with small advantage towards Canon.
6. Canon R mount T2 rings seems to be hard to find :/

I struggle because I hear that Sony's sensor is really good in low light conditions and I see that a lot of fellow photmicrographers are using Sony cameras, however the crop factor on FHD. I'm also inclided towards the ability to charge the camera while having it connected to PC, as I want to observe mostly on my monitor with ability to record for longer time.

While no-crop factor on Canon is a pretty good advantage.

The software is the least of an issue, as I believe there has to be something good (that doesn't introduce lag when watching LV), but any recommendations are welcome.

Any experience with any or both of the cameras? Suggestions are welcome.

Thanks in advance!

Hi everyone,

I am currently looking at a Amscope B-120 which according to their website has a Ocular diameter of 23mm. However I haven't been able to find an iPhone adapter for eyepieces this small. Am I looking at the wrong measurement? All of the adapter I have seen have been at least for 23.2 mm all the way up to 28 mm.

Any ideas?

thanks.

I hope this doesn’t offend anyone. Next slide is like to blow vape on a slide to see for myself what the differences are.