Pau wrote:I see no one responding, it seems that people here do not use this kind of cameras, and i suppose that there is a good reason for it.
No doubt, a digital eyepiece is not ideal if the emphasis is on highest quality images.
But in this case I think the emphasis has to be on effective instruction, and I think that's more a matter of how well the camera works for teleconferencing.
When I heard about his situation, my response was
For your problem I think the eyepiece camera is hands-down the best solution in terms of usability and effectiveness. Even with all my equipment, if I had to plan on doing an online class I'd buy an eyepiece camera and go that route. All the other approaches ultimately give superb images but they're fiddly and slow to setup. Nothing except the eyepiece camera will give you zoom without changing focus.
One unit that he's looking at is OMAX A35180U3. That works out to have sensor size 6.14 mm x 4.605 mm. With its 0.5X lens, in the context of his scope with 0.63X objective and 0.6-6.6X zoom module, I calculate that he'd get a subject field size ranging from 32.5 mm x 24.4 mm at lowest magnification, down to 2.95 mm x 2.22 mm at highest magnification, all at the twist of a zoom control.
If the camera does play nice with teleconferencing, either as webcam or by screen-scraping, that seems pretty workable to me.