MicrobeHunter.com Microscopy Forum

I could not find any coin pictures in that ebay listing. Perhaps ebay's system redirected a link to another, "closest" still active item? The fringing of the OP's high contrast specimen could very well be lateral chromatic aberration inherent in the CMO design, from looking through the sides of the ...

My earlier image largely shows the chromatic aberration of the M7A objective at maximum magnification. I found a couple more from when I was considering direct projection onto a larger image sensor. imaged1.jpg imaged2.jpg These are from a wide open Wild M7S, with the same objective but looking thro...

Thank you for your reply. I am sorry my posts the last few months have not been as clear as they perhaps should be from lack of sleep. (I have someone working on that.) I may be trying to insert one too many optical units between the objective and eyepieces. By I doing so, I risk lengthening the inf...

Note that thr normal heads will cover 26.5mm fn eyepieces but low profile and ergo heads will not. Would you know if the vignetting is from before the projection of the infinity optical paths or after? I ask because I have extended the i.o. path on a microscope, so that inserting the 30° ergo wedge...

A pair of generic 10X/22 eyepieces I tried had too limited of a diopter adjustment to reach Wild's unusually deep intermediate image. On the other hand a pair of Zeiss W-PL 10X/23 oculars (and I would guess the Asian copies of them) are just parfocal when contracted to their limits. I refuse to shor...

... It isn't advisable to run either type of filament illumination at voltages much less than about 85% and if running a 15 or 20 watt bulb in any microscope I have ever used and that is a lot.... Thank you for that helpful information. 85% of nominal voltage would be roughly 60% intensity. The sta...

That is what I do. Here is a directly projected image taken with an Olympus E-PL7 and the older Wild 376788 photo tube:



(Click on the image to enlarge or to save the original.)

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The IKEA Nävlinge lamp emits more lumens but over a much greater area. It did not seem much brighter than the Jansjö, but I probably should double check. The Nävlinge's considerably bigger head and short flex section convinced me to buy more Jansjö's when IKEA was closing them out. You can buy simil...

... Today I ordered 2 gooseneck USB LEDs from a Swedish furniture company along with some furniture, we'll see how that works, if not powerful enough I may use the goosenecks and put some DIY leds on it, though not sure about the weight capacity... Which ones? I bought some 70 lumen, Jansjö desk la...

If you lack room for a computer/HDMI monitor, most mirrorless cameras allow you to frame and focus at the microscope, using their tilting LCD view screens and focus peaking. APS-C, Micro Four Thirds and Nikon 1 system cameras can all work really well for direction projection on to the sensor – which...

... I have a Swift Stellar 1 Pro-T microscope, and with it I bought a camera from Amazon (Hayear 2K 34MP...) that I hook up to a monitor. I notice that the image on the monitor is zoomed in a bit than what I see in the eye piece, even after I take off the 0.5x zoom tubing.... Is this happening beca...

The new scientific equipment market is a bit special and, from what I have experienced, not structured for buyers whose first criteria is price.

You might investigate Meiji Techno who let their dealers publish prices.

I like ISO 200 the best as well. At least it used to be that Olympus ISO 100 was just ISO 200 overexposed a stop and then halved.

I do not know where you are, but currently, TME has a tolerable few BC547 variants in stock. You may not even have to form the leads.

Thank you both for that information. It is good to know more alternatives as it is often quicker and easier to adopt a camera for the microscope than adapt the microscope to the camera.

The T7 has been around since practically the Little Ice Age. Is there an earliest version you would recommend for photomicroscopy? The T7 is from 2018, not too insanely old. I have only tried a few models. The T6 is perfectly good too, the T3 as I recall had some annoying issues with not properly p...

I am somewhat surprised at the response this has garnered, especially being called a crook. I didn't expect to get much interest when I posted this, but definitely didn't expect what I got. I guess it makes sense now when you see the classified forum full of people looking to buy and not very many ...

To echo other posts her it depends on your system and your goals. It's hard to beat a used dslr for the money (ie canon rebel t7 for around 300 usd), though a mirrorless camera is more ideal for microscopy in some ways and often easier to adapt on too. The T7 has been around since practically the L...

You want top dollar and you're not a community member, not sure what outcome you're expecting. Even if someone wanted it at that price why would they trust you outside of a platform with some buyer protection? Just put it on eBay. Actually it is on ebay at the same price with the same description t...

+1. Turning off auto-ISO and turning on anti-shock also did and does wonders for the resolution.

I could believe Manual mode (M) will work, but as the microscope sets the aperture, I suggested shutter preferred (S) mode. S mode only controls what the camera can, and frees up the other, programmable dial for something else, such as "ASA" or color temperature. But whatever works for you! (ADDENDU...

I purchased this adapter intended for Nikon microscopes. The photo port on the LW i4 is 38.1 mm so I am hoping that this 38mm to C mount adapter will work.... https://a.co/d/d8fSrSy That is the approach a couple of us took to add Olympus and Panasonic MFT cameras to Wild microscopes with ISO 38mm p...

I went with a used Olympus OM-D E M1 Mark II. I got a good deal on it and it seemed like a good option for what I am looking for (I think).... Next up on my list is researching the best way to get live video from the camera to the computer! I did some quick checking and only found one possible gotc...

... So doing the math and assuming that 12mp is far more than enough while using 10x or 40x objective on my microscopy...and with mainly wanting to do live viewing on a computer with some pictures taken and video recorded in HD. Would there be any advantage of getting something like: Olympus OM-D E...

... Perhaps 2x cheap eyepiece cams in the eyetubes of a good Wild or Leica would work.... Or a 50:50 photo tube HV, a monocular, photo tube A and two mirrorless cameras, plus two sets of optic-less tube/thread adapters. Hang on, I have all the parts for that. I have way too many projects on my to-d...

... Good product photos go a long way in instilling trust and when they're deliberately missing, it feels like the reseller is either hiding something or covering their ass for a potential problem after the sale.... Another type of listing to watch out for has an almost entirely good set of photos,...

MikeBradley wrote: ↑

Wed May 11, 2022 1:25 am

You can always tell a microscopist, they wash their hands before going to the bathroom....

Or they could be a chemist.

A quick duckduckgo search found a PC-incompatible ingredient in hair bleaching products: potassium persulfate. That could just be whitening: two more charts I looked at show PC resists it.

... Any drawbacks? Not that I've seen. There have been concerns that this might weaken the plastic but I haven't observed any tendency to crack etc in the couple pieces I've treated.... The housing could be made of polycarbonate (PC) or ABS, so I would watch for environmental stress cracking where ...