A:Answerit depends on the resolution and pixels of the each picture but roughly like a million
1 tb = 1,000,000 MB
so a common photo take it with a decent phone camera weights like 2MB to 5MB
so midly 3MB per photo that is like
333,333 photos
A:AnswerYes it would but you have to remember or know that if it’s formatted for windows and you have data you have to back it up somewhere because the drive will need to be formatted for Apple OS. And vice versa. If you go back to windows and you have data, the drive will need to be formatted for windows and all data will be lost.