BH2 Advice please on USB camera options

[tchall]

Dear All
I would really appreciate all your help
I have decided on buying a BH2
With: S plan objectives X4, x10, X20 ,x40, and x100 oil immersion.
It has a trinocular head

The seller is a retired pathologist.
I very much would like to put an updated USB camera on the Tri head.

I have included photos of the setup I am going to buy. but would appreciate your thoughts prior to me purchasing it please.
I really don’t understand what I would need

Would I need a MTV-3 Or a U-PMTVC Or a U-PMTVC with a U-SPT
Or a nfk 2.5

on Aliexpress I see you can buy Trinocular Microscope CCD Adapter BH2 Trinocular Interface Conversion Base for Olympus Biological Stereo AX BX CX MX CX2 BX2 SZX
link
https://www.aliexpress.com/item/3295487 ... 26644%21im

and then a
0.35X 0.5X 1X Focusable Microscope C mount Adapter Trinocular Microscope Reduce Lens CCD Camera Adapter for Olympus Microscope
link
https://www.aliexpress.com/item/4000244 ... 2057btIxHe

and then a camera

or can anyone suggest an am-scope solution or really anything would be much appreciated
Many thanks
Tom,

[carlh6902]

This may help:

https://drive.google.com/file/d/1bC7gVC ... p=drivesdk

Carl

[woyjwjl]

This is the inescapable problem of buying obsolete (cost effective) equipment and I have tried to explain, in a minimum of words, that

Optimal microscope performance: the objective, eyepiece and tube lens (if any) all work at the designed working distance, when the eyepiece is clearly imaged.
Setting up the camera system requires that the eyepiece is imaged at the same time as the camera is imaged, commonly known as: flush focus. It does not matter whether the field of view (FOV) of the two is the same or not.
How to achieve a 125 mm focal length for the photographic eyepieces is the question (the "125" markings on the FK, NFK and PE photographic eyepieces indicate that they are designed to provide optimum performance at a projection distance of 125 mm). The scarcity and expense of the original Photomicro Adapter L is the main culprit.
The second problem is the inconsistency of sensor sizes (which are claimed to be the same) between camera brands and the distance from the sensor to the interface flange.

The conclusion is: look at the information you can see, then give up thinking and copy your homework is your best bet.

http://www.alanwood.net/olympus/digital ... scope.html
http://www.alanwood.net/olympus/c-mount ... scope.html
viewtopic.php?f=9&t=11417&hilit=pm+10ad

I would like to take this opportunity to thank all those who have selflessly provided information

Have a great time!

[Scarodactyl]

There is no very good solution for using a usb camera on a bh2. You'd get better results using an aps-c dslr with your current hardware even though the imsge will be cropped.