Microscope Smartphone Adapter – Digital Eye Center

Celestron

Plugable 250x Digital USB Microscope with Observation Stand

aist optics ls-1b ophthalmic optical microscope

Digital Microscope Camera for Coin Details - CoinValueChecker

What camera options are there for microscopes? - Joyful Microbe

Microscope Smartphone Adapter – Digital Eye Center

Works on microscopes with 23.2mm optical tube or 23.2mm eyepiece barrel. Please measure the inside diameter of microscope tube if you are not sure

Microscope Lens Cellphone Adapter, Microscope Smartphone Camera Adapter - for Microscope Eyepiece Tube 23.2mm, Built-in WF 16X Microscope Eyepiece

OpenOcular

ZEISS Primostar 3 HD Digital Microscope with Plan Achromat Objectives

Celestron 44341 LCD Digital Microscope II 44341 B&H Photo Video

Smartphone to Optics Adapter by OpenOcular - Thingiverse