Image Grain

[Corrie Bakker]

When I bring a photo into photoshop it is looking grainy it is a 14mg file so shouldn't be grainy..... when i zoom in it gets clearer and when i zoom out it gets grainy again.  I need help lol

[Christina Keddie]

Try this (the solution to problem 2): http://www.damiensymonds.net/2015/09/black-boxes-and-other-weird-behaviour.html