Another step - checking the Nikon 130mm phototube with lens at the bottom. Via an MFT sensor, the image appears a magnified crop, leading to speculation that this chimney was intended for a full-frame camera? If so, it is shown with a too much extension for the difference in flange-sensor distance, ...

What I am most curious about is how much of the field of view makes it onto the camera sensor, which gives an idea if the objective is giving its rated magnification to the sensor or if the second lens in the chimney resizes the image to do so (presumably with a second such lens behind the binocula...

Very nice! How does the captured FoV compare with what you see in the eyepieces? Using the helicoid, precisely parfocal with the eyepieces at the 80mm measured by Mike. And per your prior comment, the image fills the MFT sensor without any relay lens. My guess is the 130mm chimney with lens is for ...

Olympusman wrote: ↑

Sat Aug 28, 2021 5:58 am

Ihave been advising Robin for some time on microscopy issues...Lucky try! Hit it at 8 cm. Mik

With Olympusman's help, a helicoid and a few rings & adapters and I'm getting very good full-sensor images on a Panasonic GX9 MFT body. Now to be able to capture a burst for focus stacking.

Adalbert wrote: ↑

Fri Apr 13, 2018 10:03 am

Hi RCAguy,
What about ebay ?
e.g.
https://www.ebay.com/itm/Nikon-Microsco ... SwSz1an5e5

dBay can't find that page.

My chimney, at 130mm flange to top, appears taller than others I've seen, and has a lens at the bottom. Without the chimney, Mike Much found 80mm in T rings produced an image on a 4/3 camera, albeit smallish. With an adapter form him, later today I'll see what I get with my newly acquired 4/3 body.

They made a few photo eyepieces for it for different sensor sizes, ranging from a 1x (with only a 16mm image diagonal for 1" sensors) to a 2x and 2.5x for slrs and I think at least one higher mag one for larger formats. These knevitably crop the image, though on the e200 that might not be a problem...

Perfect. Borrowed 42mm\T extension tubes and an Olympus EP1 M4/3 body found an image at 80mm to the lens mount flange. A calibration slide grid covered only a small area, suggesting a straight-through solution might be better with a smaller sensor. It was member Mike Much’s 4/3 camera and expertise...

Perfect. Borrowed 42mm\T extension tubes and an Olympus EP1 M4/3 body found an image at 80mm to the lens mount flange. A calibration slide grid covered only a small area, suggesting a straight-through solution might be better with a smaller sensor. (I haven't bought a camera yet, be it an "industria...

Thanks Scarodactyl. Yes, I attached the "chimney," so know how to remove it. But then what adaptor would I need from that circular dovetail to the camera? With the E200's infinity optics, does that adaptor need a lens? And who's a source? Many thanks. For the good of the order, a good article on the...

Here are two images of my E200 trinocular for getting me to a choice of camera and its mount, which is my second issue. PS using the Attachment instructions is iffy using an iPad or iPhone as at first the images were "too large." I had to email them to myself, limit their size, then I could post the...

Re the trinocular on the Nikon E200: The tall extension has a lens at the bottom, and an unidentified port at the top, measuring 41.5mm inside the bosses, and 44mm at its maximum inside diameter - not a camera body mount I recognize, so I presume an adapter is needed to whatever camera. https://boli...

All screws were tight - it’s inside the focussing mechanism housing. Can anyone guide me to get inside? Or a source for parts if not the whole mechanism? Thanks.

Suddenly the focus is rough, ratcheting, and unable to drop its full range. I've taken it down to the slider visible with its tracks on either side, but hesitate to go further until help arrives - thanks. - Robin