Hi dannenberg40,
I understand you have some photos that were synced from your Mac in the iPhoto app on your iPhone. You are correct in that you need to remove the photos from within the iTunes application on your Mac. The resources below will provide some information on how to remove the synced photos.
Sync photos from your computer to your iOS device using iTunes - Apple Support
https://support.apple.com/en-us/HT201313
- In iTunes, locate and click on your device.
- Click Photos.
- Choose "Selected albums" and deselect the albums or collections you want to delete.
To delete all synced photos, deselect "Sync Photos from" and, when asked, click "Remove photos."
- Click Apply.
Delete photos and video synced from iTunes when you can’t access the originals - Apple Support
https://support.apple.com/en-us/HT204120
You can delete photos you synced from iTunes by syncing them with a new folder.
These steps will remove all of the previously synced photos from the device.
To delete photos that have been synced from a computer that's no longer accessible:
- Create a folder on the computer that you now sync with, and add a single photo to that folder.
- In the Photos tab in iTunes, click the box next to "Sync Photos From."
- In the pop-up menu next to "Sync Photos From," choose the folder you created in step 1.
- Apply the change.
- Uncheck "Sync Photos From."
- Apply the change again.
- Your synced photos will now be removed from the device.
Last Modified: Jun 26, 2015
Take care,