If you do not have a GPS integrated camera, you may still synchronise using an external GPS for example by an external time-box, e.g.
Video guides by from the RECON projects about setting up the instruments, cameras, focusing of the telescope ... http://tnorecon.net/participant-resources/recon-video-guides/
Exploring the Solar System using stellar occultations in the Gaia era - Lecture given by Brun Sicardy at the IAP (Institut d'Astrophysique de Paris) on Oct. 25th, 2019.
Introduction to occultations - Chasing an Asteroid’s Shadow (article from the Lucy team http://lucy.swri.edu/2021/03/17/Occultations.html
The IOTA guide to observing occultations
Multiple guidelines in English and German can be found on the IOTA-ES page https://www.iota-es.de/guidelines.html
All issues of the quarterly "Journal for Occultation Astronomy (JOA)" issued and edited by the International Occultation Timing Association (IOTA) can be found here https://www.iota-es.de/joafree.html
OccultWatcher (OW) is a Windows program that helps astronomical occultation observers to stay tuned with the incoming occultation events.
A web version, Occult Watcher Cloud (OWC), exists and we will be using it throughout the ACROSS project to alert observers on upcoming events.
Here is a tutorial explaining how to use OWC https://www.youtube.com/watch?v=blzrTisd328
An OW tutorial https://www.youtube.com/watch?v=vTgYCkWO_Fc