The optivisor will still be useful to you even if you have a microscope. For simple settings you may get away with the optivisor but for the smaller stones you will need a greater magnification than you will get with the optivisor. You will need to go the Chinese route these may suit the bill to start off with:
https://www.aliexpress.com/item/32847074588.html
it comes with a couple of barlow lenses.
This one is cheaper but you will need a 0.5 barlow lens which will give you a greater working distance. 155-165mm
https://www.aliexpress.com/item/32846480110.html
You may have to modify the stand(turn it around and screw it to the bench) a little but it should do a great job.
You can add an articulating arm later when you can afford it.
https://www.aliexpress.com/item/32977134987.html
You will also need to factor in delivery, customs etc.
The model I've recently purchased is this one:
https://www.aliexpress.com/item/33000718102.html
This is a video review.
https://www.youtube.com/watch?v=sZqCsk0kGm8
It comes with a load of stuff which is not essential to the working of the microscope. You can also buy the items individually and build up the microscope to suit.
Bookmarks