Hi friends, you need to use some tool or software to sync iPhone photos to pc. I use MobiKin Assistant for iOS to backup my iPhone data to computer. It work well and can sync data from iPhone to computer easily. Whst's more, you can transfer more than 10 types of files from iOS device to computer, like call history, voice memos, books, contacts, text messages, media files, etc to pc from iPhone device. There are some steps to transfer camera roll photos from iPhone to computer
Step 1: Download, install and run the program on computer
First, you need to install iTunes to your computer. Then connect iPhone to pc through USB data cale. The program will automatic detected and scan your iPhone device.
Step 2: Preview and choose photos as you need
Click "Camera Roll" to preview and choose pictures as you like. There is a quickly search function. You can find the target photos by the function. Wait to export.
Step 3: Export photos from iPhone to computer
Click "Export" button to export and save photos from iPhone to computer. You can also export all photos by click "File" --> "export all photos". That's all. Hope this helps!