Michael CorganI don't use the Photos app, preferring to store photo files in folders on a hard drive (for use with a cataloguing system). I am wondering if I am imagining that I have previously been able to see the iPhone contents simply by connecting it to my Mac with a USB cable and so copy photo files to a computer. This is not now happening either with the iMac or the MacBook Pro. And when connecting via iTunes only 7 of the last 30 or 40 photos are showing.
Would this be because there is a discrepancy between the operating systems? The iMac can ony run 10.11.6, while the MacBook is on 10.13.6 (by choice). The iPhone is on iOS 13.3