I have been driven crazy trying to manage the photos on my iphone. I was trying to download them to my laptop and wound up COPYING until the iPhone was FILLED to theBRIM. After a great deal of fussing and reading tip sites on the Web, I think I solved it. It still seems NUTS the way you just cannot control what transfers, except by the dread "synchronizing" If my iPHone wasn't the favorite tool I have ever had, I would NEVER have anything to do with Apple.
This is an iPhone photo, cropped and modified with the Camerabag app. Kinda neat, I think.