To search by camera date, use the Search field on the Search tab, in the Organizer panel. ( Click the folder tree icon at the top of the Favorites panel to switch to the Organizer panel ). There are some examples listed on the Search Examples page accessed from the Catalog menu. Eg, capturetime between 2018 and 2019, in the Search field will show all images with a capture date in 2018.
To see all of the various camera models, use the Browse tab in the Organizer panel. Go to the Exif option and then the Model sub option. Each model will be listed along with the image count.
regards,
--Bob