So I am finally getting a digital micrometer because the two formations I have spent 100% of my time in over the last 8 months has some extremely small fossils (do know if you call them Micro but many are <5mm and only a portion of a MM wide or deep. The one I got goes down to 1/100 of a mm which should be very useful for measuring growth rings and other characteristics of the various species. Should be here early next week, which is good as I have a significant number of fossils to ID and further remove matrix.
It may seem unusual that summer is not my collecting time but due to the restrictions on collecting where I live I mainly collect in talus and ditches during the winter when concretions and large slides happen. Given the fire conditions here in the US west the last couple of years I plan and imaging and prepping this summer. Thus the excitement over a digital Micrometer:)