Pretty damn good. If you are on the fence about the IPhone 4 let me add this to the reasons to get one. I have a bunch of really great camera equipment but it is not always practical to carry all of this stuff, so for a long time I have thought about picking up a point and shoot to bring out with friends at the same time I thought about maybe one of those flip camera to capture video of what is going on. Never thinking of doing anything professional just capturing some memories. Then I get this phone and realize that this is the point and shoot I have been looking for only to find out it is also the video camera I have been longing for. Below are a couple of samples, I think you will see what I am talking about.
All I can say about the IPhone 4 camera is wow. Kudos to Apple for not trying to keep up with the megapixel race and instead focusing on image quality.
Firstly mega pixels do not equal quality in fact more often than not the more megapixels you have the worse the images are going to look. This is especially true on these tiny camera phone sensors. The IPhone 4 camera is 5 megapixels which I think is perfect, this will easily make 8×10 prints which is as big as most people will ever go.
The first samples are of a flower taken in bright sun and really show the detail and smoothness of the IPhone 4 images.
The full frame images are cropped to 940 pixels the cropped photos are 100% crops from the full frame.