If you want to use your iPhone, there are several microscope lenses out there. I just picked one at random, never used one. Here's a link, you may want to search some more though. https://www.ebay.com/itm/133827803134?etmp=no
I just depends on how serious you are and what you want to spend. There are other things out there.
Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Coin Community assumes no liability for errors. Copyright 2005 - 2026 Coin Community Family- all rights reserved worldwide. Use of any images or content on this website without prior written permission of Coin Community or the original lender is strictly prohibited. Contact Us | Advertise Here | Privacy Policy / Terms of Use